US2003194783A1PendingUtilityA1

Co-administration of interleukin-3 mutant polypeptides with CSF's for multi-lineage hematopoietic cell production

53
Priority: Nov 24, 1992Filed: Feb 8, 2002Published: Oct 16, 2003
Est. expiryNov 24, 2012(expired)· nominal 20-yr term from priority
C07K 14/5403A61K 38/193A61K 38/1816C07K 2319/00A61K 38/27A61K 38/20C07K 2319/02A61K 38/18A61K 38/00
53
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Claims

Abstract

The present invention relates to human interleukin-3 (hIL-3) variant or mutant proteins (muteins) functionally co-administered with a other colony stimulating factors (CSF), cytokines, lymphokines, interleukins, hematopoietic growth factors or IL-3 variants.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . A composition, comprising: 
 a human interleukin-3 mutant polypeptide of the Formula:                              Ala Pro Met Thr Gln Thr Thr Ser Leu Lys Thr Ser Trp Val Asn   [SEQ ID NO:1]         1               5                   10                 15           Cys Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa                     20                  25                 30           Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Asn Xaa Xaa Xaa Xaa Xaa Xaa                     35                  40                 45           Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa                     50                  55                 60           Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa                     65                  70                 75           Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa                     80                  85                 90           Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa                     95                 100                 105           Xaa Phe Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa                    110                 115                 120           Xaa Xaa Xaa Gln Gln Thr Thr Leu Ser Leu Ala Ile Phe                    125                 130                     wherein         Xaa at position 17 is Ser, Lys, Gly, Asp, Met, Gln, or     Arg;     Xaa at position 18 is Asn, His, Leu, Ile, Phe, Arg, or     Gln;     Xaa at position 19 is Met, Phe, Ile, Arg, Gly, Ala, or     Cys;     Xaa at position 20 is Ile, Cys, Gln, Glu, Arg, Pro, or     Ala;     Xaa at position 21 is Asp, Phe, Lys, Arg, Ala, Gly, Glu,     Gln, Asn, Thr, Ser or Val;     Xaa at position 22 is Glu, Trp, Pro, Ser, Ala, His, Asp,     Asn, Gln, Leu, Val or Gly;     Xaa at position 23 is Ile, Val, Ala, Leu, Gly, Trp, Lys,     Phe, Leu, Ser, or Arg;     Xaa at position 24 is Ile, Gly, Val, Arg, Ser, Phe, or     Leu;     Xaa at position 25 is Thr, His, Gly, Gln, Arg, Pro, or     Ala;     Xaa at position 26 is His, Thr, Phe, Gly, Arg, Ala, or     Trp;     Xaa at position 27 is Leu, Gly, Arg, Thr, Ser, or Ala;     Xaa at position 28 is Lys, Arg, Leu, Gln, Gly, Pro, Val or     Trp;     Xaa at position 29 is Gln, Asn, Leu, Pro, Arg, or Val;     Xaa at position 30 is Pro, His, Thr, Gly, Asp, Gln, Ser,     Leu, or Lys;     Xaa at position 31 is Pro, Asp, Gly, Ala, Arg, Leu, or     Gln;     Xaa at position 32 is Leu, Val, Arg, Gln, Asn, Gly, Ala,     or Glu;     Xaa at position 33 is Pro, Leu, Gln, Ala, Thr, or Glu;     Xaa at position 34 is Leu, Val, Gly, Ser, Lys, Glu, Gln,     Thr, Arg, Ala, Phe, Ile or Met;     Xaa at position 35 is Leu, Ala, Gly, Asn, Pro, Gln, or     Val;     Xaa at position 36 is Asp, Leu, or Val;     Xaa at position 37 is Phe, Ser, Pro, Trp, or Ile;     Xaa at position 38 is Asn, or Ala;     Xaa at position 40 is Leu, Trp, or Arg;     Xaa at position 41 is Asn, Cys, Arg, Leu, His, Met, or     Pro;     Xaa at position 42 is Gly, Asp, Ser, Cys, Asn, Lys, Thr,     Leu, Val, Glu, Phe, Tyr, Ile, Met or Ala;     Xaa at position 43 is Glu, Asn, Tyr, Leu, Phe, Asp, Ala,     Cys, Gln, Arg, Thr, Gly or Ser;     Xaa at position 44 is Asp, Ser, Leu, Arg, Lys, Thr, Met,     Trp, Glu, Asn, Gln, Ala or Pro;     Xaa at position 45 is Gln, Pro, Phe, Val, Met, Leu, Thr,     Lys, Trp, Asp, Asn, Arg, Ser, Ala, Ile, Glu or His;     Xaa at position 46 is Asp, Phe, Ser, Thr, Cys, Glu, Asn,     Gln, Lys, His, Ala, Tyr, Ile, Val or Gly;     Xaa at position 47 is Ile, Gly, Val, Ser, Arg, Pro, or     His;     Xaa at position 48 is Leu, Ser, Cys, Arg, Ile, His, Phe,     Glu, Lys, Thr, Ala, Met, Val or Asn;     Xaa at position 49 is Met, Arg, Ala, Gly, Pro, Asn, His,     or Asp;     Xaa at position 50 is Glu, Leu, Thr, Asp, Tyr, Lys, Asn,     Ser, Ala, Ile, Val, His, Phe, Met or Gln;     Xaa at position 51 is Asn, Arg, Met, Pro, Ser, Thr, or     His;     Xaa at position 52 is Asn, His, Arg, Leu, Gly, Ser, or     Thr;     Xaa at position 53 is Leu, Thr, Ala, Gly, Glu, Pro, Lys,     Ser, or Met;     Xaa at position 54 is Arg, Asp, Ile, Ser, Val, Thr, Gln,     Asn, Lys, His, Ala or Leu;     Xaa at position 55 is Arg, Thr, Val, Ser, Leu, or Gly;     Xaa at position 56 is Pro, Gly, Cys, Ser, Gln, Glu, Arg,     His, Thr, Ala, Tyr, Phe, Leu, Val or Lys;     Xaa at position 57 is Asn or Gly;     Xaa at position 58 is Leu, Ser, Asp, Arg, Gln, Val, or     Cys;     Xaa at position 59 is Glu Tyr, His, Leu, Pro, or Arg;     Xaa at position 60 is Ala, Ser, Pro, Tyr, Asn, or Thr;     Xaa at position 61 is Phe, Asn, Glu, Pro, Lys, Arg, or     Ser;     Xaa at position 62 is Asn His, Val, Arg, Pro, Thr, Asp, or     Ile;     Xaa at position 63 is Arg, Tyr, Trp, Lys, Ser, His, Pro,     or Val;     Xaa at position 64 is Ala, Asn, Pro, Ser, or Lys;     Xaa at position 65 is Val, Thr, Pro, His, Leu, Phe, or     Ser;     Xaa at position 66 is Lys, Ile, Arg, Val, Asn, Glu, or     Ser;     Xaa at position 67 is Ser, Ala, Phe, Val, Gly, Asn, Ile,     Pro, or His;     Xaa at position 68 is Leu, Val, Trp, Ser, Ile, Phe, Thr,     or His;     Xaa at position 69 is Gln, Ala, Pro, Thr, Glu, Arg, Trp,     Gly, or Leu;     Xaa at position 70 is Asn, Leu, Val, Trp, Pro, or Ala;     Xaa at position 71 is Ala, Met, Leu, Pro, Arg, Glu, Thr,     Gln, Trp, or Asn;     Xaa at position 72 is Ser, Glu, Met, Ala, His, Asn, Arg,     or Asp;     Xaa at position 73 is Ala, Glu, Asp, Leu, Ser, Gly, Thr,     or Arg;     Xaa at position 74 is Ile, Met, Thr, Pro, Arg, Gly, Ala;     Xaa at position 75 is Glu, Lys, Gly, Asp, Pro, Trp, Arg,     Ser, Gln, or Leu;     Xaa at position 76 is Ser, Val, Ala, Asn, Trp, Glu, Pro,     Gly, or Asp;     Xaa at position 77 is Ile, Ser, Arg, Thr, or Leu;     Xaa at position 78 is Leu, Ala, Ser, Glu, Phe, Gly, or     Arg;     Xaa at position 79 is Lys, Thr, Asn, Met, Arg, Ile, Gly,     or Asp;     Xaa at position 80 is Asn, Trp, Val, Gly, Thr, Leu, Glu,     or Arg;     Xaa at position 81 is Leu, Gln, Gly, Ala, Trp, Arg, Val,     or Lys;     Xaa at position 82 is Leu, Gln, Lys, Trp, Arg, Asp, Glu,     Asn, His, Thr, Ser, Ala, Tyr, Phe, Ile, Met or Val;     Xaa at position 83 is Pro, Ala, Thr, Trp, Arg, or Met;     Xaa at position 84 is Cys, Glu, Gly, Arg, Met, or Val;     Xaa at position 85 is Leu, Asn, Val, or Gln;     Xaa at position 86 is Pro, Cys, Arg, Ala, or Lys;     Xaa at position 87 is Leu, Ser, Trp, or Gly;     Xaa at position 88 is Ala, Lys, Arg, Val, or Trp;     Xaa at position 89 is Thr, Asp, Cys, Leu, Val, Glu, His,     Asn, or Ser;     Xaa at position 90 is Ala, Pro, Ser, Thr, Gly, Asp, Ile,     or Met;     Xaa at position 91 is Ala, Pro, Ser, Thr, Phe, Leu, Asp,     or His;     Xaa at position 92 is Pro, Phe, Arg, Ser, Lys, His, Ala,     Gly, Ile or Leu;     Xaa at position 93 is Thr, Asp, Ser, Asn, Pro, Ala, Leu,     or Arg;     Xaa at position 94 is Arg, Ile, Ser, Glu, Leu, Val, Gln,     Lys, His, Ala, or Pro;     Xaa at position 95 is His, Gln, Pro, Arg, Val, Leu, Gly,     Thr, Asn, Lys, Ser, Ala, Trp, Phe, Ile, or Tyr;     Xaa at position 96 is Pro, Lys, Tyr, Gly, Ile, or Thr;     Xaa at position 97 is Ile, Val, Lys, Ala, or Asn;     Xaa at position 98 is His, Ile, Asn, Leu, Asp, Ala, Thr,     Glu, Gln, Ser, Phe, Met, Val, Lys, Arg, Tyr or Pro;     Xaa at position 99 is Ile, Leu, Arg, Asp, Val, Pro, Gln,     Gly, Ser, Phe, or His;     Xaa at position 100 is Lys, Tyr, Leu, His, Arg, Ile, Ser,     Gln, or Pro;     Xaa at position 101 is Asp, Pro, Met, Lys, His, Thr, Val,     Tyr, Glu, Asn, Ser, Ala, Gly, Ile, Leu, or Gln;     Xaa at position 102 is Gly, Leu, Glu, Lys, Ser, Tyr, or     Pro;     Xaa at position 103 is Asp, or Ser;     Xaa at position 104 is Trp, Val, Cys, Tyr, Thr, Met, Pro,     Leu, Gln, Lys, Ala, Phe, or Gly;     Xaa at position 105 is Asn, Pro, Ala, Phe, Ser, Trp, Gln,     Tyr, Leu, Lys, Ile, Asp, or His;     Xaa at position 106 is Glu, Ser, Ala, Lys, Thr, Ile, Gly,     or Pro;     Xaa at position 108 is Arg, Lys, Asp, Leu, Thr, Ile, Gln,     His, Ser, Ala or Pro;     Xaa at position 109 is Arg, Thr, Pro, Glu, Tyr, Leu, Ser,     or Gly;     Xaa at position 110 is Lys, Ala, Asn, Thr, Leu, Arg, Gln,     His, Glu, Ser, Ala, or Trp;     Xaa at position 111 is Leu, Ile, Arg, Asp, or Met;     Xaa at position 112 is Thr, Val, Gln, Tyr, Glu, His, Ser,     or Phe;     Xaa at position 113 is Phe, Ser, Cys, His, Gly, Trp, Tyr,     Asp, Lys, Leu, Ile, Val or Asn;     Xaa at position 114 is Tyr, Cys, His, Ser, Trp, Arg, or     Leu;     Xaa at position 115 is Leu, Asn, Val, Pro, Arg, Ala, His,     Thr, Trp, or Met;     Xaa at position 116 is Lys, Leu, Pro, Thr, Met, Asp, Val,     Glu, Arg, Trp, Ser, Asn, His, Ala, Tyr, Phe, Gln, or     Ile;     Xaa at position 117 is Thr, Ser, Asn, Ile, Trp, Lys, or     Pro;     Xaa at position 118 is Leu, Ser, Pro, Ala, Glu, Cys, Asp,     or Tyr;     Xaa at position 119 is Glu, Ser, Lys, Pro, Leu, Thr, Tyr,     or Arg;     Xaa at position 120 is Asn, Ala, Pro, Leu, His, Val, or     Gln;     Xaa at position 121 is Ala, Ser, Ile, Asn, Pro, Lys, Asp,     or Gly;     Xaa at position 122 is Gln, Ser, Met, Trp, Arg, Phe, Pro,     His, Ile, Tyr, or Cys;     Xaa at position 123 is Ala, Met, Glu, His, Ser, Pro, Tyr,     or Leu;                                                                                                                                                                                                                                                    and which can additionally have Met- preceding the amino acid in position 1; and wherein from 1 to 14 amino acids can be deleted from the N-terminus and/or from 1 to 15 amino acids can be deleted from the C-terminus; and wherein from 4 to 44 of the amino acids designated by Xaa are different from the corresponding amino acids of native (1-133) human interleukin-3;    a colony stimulating factor; and    at least one non-toxic pharmaceutically acceptable carrier.    
     
     
         2 . A composition, comprising: 
 a human interleukin-3 mutant polypeptide of the Formula:                              Ala Pro Met Thr Gln Thr Thr Ser Leu Lys Thr Ser Trp Val Asn   [SEQ ID NO:2]          1              5                   10                 15           Cys Xaa Xaa Xaa Ile Xaa Glu Xaa Xaa Xaa Xaa Leu Lys Xaa Xaa                     20                  25                 30           Xaa Xaa Xaa Xaa Xaa Asp Xaa Xaa Asn Leu Asn Xaa Glu Xaa Xaa                     35                  40                 45           Xaa Ile Leu Met Xaa Xaa Asn Leu Xaa Xaa Xaa Asn Leu Glu Xaa                     50                  55                 60           Phe Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Asn Xaa Xaa Xaa Ile Glu                     65                  70                 75           Xaa Xaa Leu Xaa Xaa Leu Xaa Xaa Cys Xaa Pro Xaa Xaa Thr Ala                     80                  85                 90           Xaa Pro Xaa Arg Xaa Xaa Xaa Xaa Xaa Xaa Xaa Gly Asp Xaa Xaa                     95                 100                 105           Xaa Phe Xaa Xaa Lys Leu Xaa Phe Xaa Xaa Xaa Xaa Leu Glu Xaa                    110                 115                 120           Xaa Xaa Xaa Gln Gln Thr Thr Leu Ser Leu Ala Ile Phe                    125                 130                     wherein         Xaa at position 17 is Ser, Gly, Asp, Met, or Gln;     Xaa at position 18 is Asn, His, or Ile;     Xaa at position 19 is Met or Ile;     Xaa at position 21 is Asp or Glu;     Xaa at position 23 is Ile, Ala, Leu, or Gly;     Xaa at position 24 is Ile, Val, or Leu;     Xaa at position 25 is Thr, His, Gln, or Ala;     Xaa at position 26 is His or Ala;     Xaa at position 29 is Gln, Asn, or Val;     Xaa at position 30 is Pro, Gly, or Gln;     Xaa at position 32 is Leu, Art, Gln, Asn, Gly, Ala, or     Glu;     Xaa at position 33 is Pro or Glu;     Xaa at position 34 is Leu, Val, Gly, Ser, Lys, Ala, Arg,     Gln, Glu,Ile, Phe, Thr or Met;     Xaa at position 35 is Leu, Ala, Asn, Pro, Gln, or Val;     Xaa at position 37 is Phe, Ser, Pro, or Trp;     Xaa at position 38 is Asn or Ala;     Xaa at position 42 is Gly, Asp, Ser, Cys, Ala, Asn, Ile,     Leu, Met, Tyr or Arg;     Xaa at position 44 is Asp or Glu;     Xaa at position 45 is Gln, Val, Met, Leu, Thr, Ala, Asn,     Glu, Ser or Lys;     Xaa at position 46 is Asp, Phe, Ser, Thr, Ala, Asn Gln,     Glu, His, Ile, Lys, Tyr, Val or Cys;     Xaa at position 50 is Glu, Ala, Asn, Ser or Asp;     Xaa at position 51 is Asn, Arg, Met, Pro, Ser, Thr, or     His;     Xaa at position 54 is Arg or Ala;     Xaa at position 55 is Arg, Thr, Val, Leu, or Gly;     Xaa at position 56 is Pro, Gly, Ser, Gln, Ala, Arg, Asn,     Glu, Leu, Thr, Val or Lys;     Xaa at position 60 is Ala or Ser;     Xaa at position 62 is Asn, Pro, Thr, or Ile;     Xaa at position 63 is Arg or Lys;     Xaa at position 64 is Ala or Asn;     Xaa at position 65 is Val or Thr;     Xaa at position 66 is Lys or Arg;     Xaa at position 67 is Ser, Phe, or His;     Xaa at position 68 is Leu, Ile, Phe, or His;     Xaa at position 69 is Gln, Ala, Pro, Thr, Glu, Arg, or     Gly;     Xaa at position 71 is Ala, Pro, or Arg;     Xaa at position 72 is Ser, Glu, Arg, or Asp;     Xaa at position 73 is Ala or Leu;     Xaa at position 76 is Ser, Val, Ala, Asn, Glu, Pro, or     Gly;     Xaa at position 77 is Ile or Leu;     Xaa at position 79 is Lys, Thr, Gly, Asn, Met, Arg, Ile,     Gly, or Asp;     Xaa at position 80 is Asn, Gly, Glu, or Arg;     Xaa at position 82 is Leu, Gln, Trp, Arg, Asp, Ala, Asn,     Glu, His, Ile, Met, Phe, Ser, Thr, Tyr or Val;     Xaa at position 83 is Pro or Thr;     Xaa at position 85 is Leu or Val;     Xaa at position 87 is Leu or Ser;     Xaa at position 88 is Ala or Trp;     Xaa at position 91 is Ala or Pro;     Xaa at position 93 is Thr, Asp, Ser, Pro, Ala, Leu, or     Arg;     Xaa at position 95 is His, Pro, Arg, Val, Leu, Gly, Asn,     Phe, Ser or Thr;     Xaa at position 96 is Pro or Tyr;     Xaa at position 97 is Ile or Val;     Xaa at position 98 is His, Ile, Asn, Leu, Ala, Thr, Leu,     Arg, Gln, Leu, Lys, Met, Ser, Tyr, Val or Pro;     Xaa at position 99 is Ile, Leu, or Val;     Xaa at position 100 is Lys, Arg, Ile, Gln, Pro, or Ser;     Xaa at position 101 is Asp, Pro, Met, Lys, His, Thr, Pro,     Asn, Ile, Leu or Tyr;     Xaa at position 104 is Trp or Leu;     Xaa at position 105 is Asn, Pro, Ala, Ser, Trp, Gln, Tyr,     Leu, Lys, Ile, Asp, or His;     Xaa at position 106 is Glu or Gly;     Xaa at position 108 is Arg, Ala, or Ser;     Xaa at position 109 is Arg, Thr, Glu, Leu, or Ser;     Xaa at position 112 is Thr, Val, or Gln;     Xaa at position 114 is Tyr or Trp;     Xaa at position 115 is Leu or Ala;     Xaa at position 116 is Lys, Thr, Val, Trp, Ser, Ala, His,     Met, Phe, Tyr or Ile;     Xaa at position 117 is Thr or Ser;     Xaa at position 120 is Asn, Pro, Leu, His, Val, or Gln;     Xaa at position 121 is Ala, Ser, Ile, Asn, Pro, Asp, or     Gly;     Xaa at position 122 is Gln, Ser, Met, Trp, Arg, Phe, Pro,     His, Ile, Tyr, or Cys;     Xaa at position 123 is Ala, Met, Glu, His, Ser, Pro, Tyr,     or Leu;                                                                                                                                                   and which can additionally have Met- preceding the amino acid in position 1; and wherein from 1 to 14 amino acids can be deleted from the N-terminus and/or from 1 to 15 amino acids can be deleted from the C-terminus; and wherein from 4 to 35 of the amino acids designated by Xaa are different from the corresponding amino acids of native (1-133)human interleukin-3;    a colony stimulating factor selected from the group consisting of GM-CSF, CSF-1, G-CSF, Meg-CSF (more recently referred to as c-mpl ligand), M-CSF, erythropoietin (EPO), IL-1, IL-4, IL-2, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, IL-11, IL-12, IL-13, LIF, flt3/flk2, human growth hormone, B-cell growth factor, B-cell differentiation factor, eosinophil differentiation factor and stem cell factor (SCF); and    at least one non-toxic pharmaceutically acceptable carrier.    
     
     
         3 . A composition of  claim 2 , wherein said human interleukin-3 mutant polypeptide is of the Formula:  
       
         
           
                 
                 
                 
               
                     
                 
                   Ala Pro Met Thr Gln Thr Thr Ser Leu Lys Thr Ser Trp Val Asn 
                   [SEQ ID NO:3] 
                     
                 
                    1              5                   10                 15 
                 
                     
                 
                   Cys Xaa Xaa Met Ile Asp Glu Xaa Ile Xaa Xaa Leu Lys Xaa Xaa 
                 
                                   20                  25                 30 
                 
                     
                 
                   Pro Xaa Pro Xaa Xaa Asp Phe Xaa Asn Leu Asn Xaa Glu Asp Xaa 
                 
                                   35                  40                 45 
                 
                     
                 
                   Xaa Ile Leu Met Xaa Xaa Asn Leu Arg Xaa Xaa Asn Leu Glu Ala 
                 
                                   50                  55                 60 
                 
                     
                 
                   Phe Xaa Arg Xaa Xaa Lys Xaa Xaa Xaa Asn Ala Ser Ala Ile Glu 
                 
                                   65                  70                 75 
                 
                     
                 
                   Xaa Xaa Leu Xaa Xaa Leu Xaa Pro Cys Leu Pro Xaa Xaa Thr Ala 
                 
                                   80                  85                 90 
                 
                     
                 
                   Xaa Pro Xaa Arg Xaa Pro Ile Xaa Xaa Xaa Xaa Gly Asp Trp Xaa 
                 
                                   95                 100                 105 
                 
                     
                 
                   Glu Phe Xaa Xaa Lys Leu Xaa Phe Tyr Leu Xaa Xaa Leu Glu Xaa 
                 
                                  110                 115                 120 
                 
                     
                 
                   Xaa Xaa Xaa Gln Gln Thr Thr Leu Ser Leu Ala Ile Phe 
                 
                                  125                 130 
                 
                     
                 
                 
                 
               
                   wherein 
                     
                 
                   Xaa at position 17 is Ser, Gly, Asp, or Gln; 
                 
                   Xaa at position 18 is Asn, His, or Ile; 
                 
                   Xaa at position 23 is Ile, Ala, Leu, or Gly; 
                 
                   Xaa at position 25 is Thr, His, or Gln; 
                 
                   Xaa at position 26 is His or Ala; 
                 
                   Xaa at position 29 is Gln or Asn; 
                 
                   Xaa at position 30 is Pro or Gly; 
                 
                   Xaa at position 32 is Leu, Arg, Asn, or Ala; 
                 
                   Xaa at position 34 is Leu, Val, Ser, Ala, Arg, Gln, Glu, 
                 
                   Ile, Phe, Thr, or Met; 
                 
                   Xaa at position 35 is Leu, Ala, Asn, or Pro; 
                 
                   Xaa at position 38 is Asn or Ala; 
                 
                   Xaa at position 42 is Gly, Asp, Ser, Ala, Asn, Ile, Leu, 
                 
                   Met, Tyr or Arg; 
                 
                   Xaa at position 45 is Gln, Val, Met, Leu, Ala, Asn, Glu, 
                 
                   or Lys; 
                 
                   Xaa at position 46 is Asp, Phe, Ser, Gln, Glu, His, Val 
                 
                   or Thr; 
                 
                   Xaa at position 50 is Glu Asn, Ser or Asp; 
                 
                   Xaa at position 51 is Asn, Arg, Pro, Thr, or His; 
                 
                   Xaa at position 55 is Arg, Leu, or Gly; 
                 
                   Xaa at position 56 is Pro, Gly, Ser, Ala, Asn, Val, Leu or 
                 
                   Gln; 
                 
                   Xaa at position 62 is Asn, Pro, or Thr; 
                 
                   Xaa at position 64 is Ala or Asn; 
                 
                   Xaa at position 65 is Val or Thr; 
                 
                   Xaa at position 67 is Ser or Phe; 
                 
                   Xaa at position 68 is Leu or Phe; 
                 
                   Xaa at position 69 is Gln, Ala, Glu, or Arg; 
                 
                   Xaa at position 76 is Ser, Val, Asn, Pro, or Gly; 
                 
                   Xaa at position 77 is Ile or Leu; 
                 
                   Xaa at position 79 is Lys, Gly, Asn, Met, Arg, Ile, or 
                 
                   Gly; 
                 
                   Xaa at position 80 is Asn, Gly, Glu, or Arg; 
                 
                   Xaa at position 82 is Leu, Gln, Trp, Arg, Asp, Asn, Glu, 
                 
                   His, Met, Phe, Ser, Thr, Tyr or Val; 
                 
                   Xaa at position 87 is Leu or Ser; 
                 
                   Xaa at position 88 is Ala or Trp; 
                 
                   Xaa at position 91 is Ala or Pro; 
                 
                   Xaa at position 93 is Thr, Asp, or Ala; 
                 
                   Xaa at position 95 is His, Pro, Arg, Val, Gly, Asn, Ser or 
                 
                   Thr; 
                 
                   Xaa at position 98 is His, Ile, Asn, Ala, Thr, Gln, Glu, 
                 
                   Lys, Met, Ser, Tyr, Val or Leu; 
                 
                   Xaa at position 99 is Ile or Leu; 
                 
                   Xaa at position 100 is Lys or Arg; 
                 
                   Xaa at position 101 is Asp, Pro, Met, Lys, Thr, His, Pro, 
                 
                   Asn, Ile, Leu or Tyr; 
                 
                   Xaa at position 105 is Asn, Pro, Ser, Ile or Asp; 
                 
                   Xaa at position 108 is Arg, Ala, or Ser; 
                 
                   Xaa at position 109 is Arg, Thr, Glu, Leu, or Ser; 
                 
                   Xaa at position 112 is Thr or Gln; 
                 
                   Xaa at position 116 is Lys, Val, Trp, Ala, His, Phe, Tyr 
                 
                   or Ile; 
                 
                   Xaa at position 117 is Thr or Ser; 
                 
                   Xaa at position 120 is Asn, Pro, Leu, His, Val, or Gln; 
                 
                   Xaa at position 121 is Ala, Ser, Ile, Pro, or Asp; 
                 
                   Xaa at position 122 is Gln, Met, Trp, Phe, Pro, His, Ile, 
                 
                   or Tyr; 
                 
                   Xaa at position 123 is Ala, Met, Glu, Ser, or Leu; 
                 
                     
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
       and which can additionally have Met- preceding the amino acid in position 1; and wherein from 1 to 14 amino acids can be deleted from the N-terminus and/or from 1 to 15 amino acids can be deleted from the C-terminus; and wherein from 4 to 44 of the amino acids designated by Xaa are different from the corresponding amino acids of native (1-133)human interleukin-3.  
     
     
         4 . A composition of  claim 3 , wherein said human interleukin-3 mutant polypeptide is of the Formula:  
       
         
           
                 
                 
               
                     
                 
                   Xaa at position 42 is Gly, Asp, Ser, Ile, Leu, 
                     
                 
                   Met, Tyr, or Ala; 
                 
                     
                 
                   Xaa at position 45 is Gln, Val, Met or Asn; 
                 
                     
                 
                   Xaa at position 46 is Asp, Ser, Gln, His or Val; 
                 
                     
                 
                   Xaa at position 50 is Glu or Asp; 
                 
                     
                 
                   Xaa at position 51 is Asn, Pro or Thr; 
                 
                     
                 
                   Xaa at position 62 is Asn or Pro; 
                 
                     
                 
                   Xaa at position 76 is Ser, or Pro; 
                 
                     
                 
                   Xaa at position 82 is Leu, Trp, Asp, Asn Glu, His, 
                 
                   Phe, Ser or Tyr; 
                 
                     
                 
                   Xaa at position 95 is His, Arg, Thr, Asn or Ser; 
                 
                     
                 
                   Xaa at position 98 is His, Ile, Leu, Ala, Gln, 
                 
                   Lys, Met, Ser, Tyr or Val; 
                 
                     
                 
                   Xaa at position 100 is Lys or Arg; 
                 
                     
                 
                   Xaa at position 101 is Asp, Pro, His, Asn, Ile or 
                 
                   Leu; 
                 
                     
                 
                   Xaa at position 105 is Asn, or Pro; 
                 
                     
                 
                   Xaa at position 108 is Arg, Ala, or Ser; 
                 
                     
                 
                   Xaa at position 116 is Lys, Val, Trp, Ala, His, 
                 
                   Phe, or Tyr; 
                 
                     
                 
                   Xaa at position 121 is Ala, or Ile; 
                 
                     
                 
                   Xaa at position 122 is Gln, or Ile; and 
                 
                     
                 
                   Xaa at position 123 is Ala, Met or Glu. 
                 
                     
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         5 . A composition, comprising: 
 a human interleukin-3 mutant polypeptide of the Formula:                              Asn Cys Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa   [SEQ ID NO:4]         1               5                   10                 15           Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Asn Xaa Xaa Xaa Xaa Xaa                     20                  25                 30           Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa                     35                  40                 45           Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa                     50                  55                 60           Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa                     65                  70                 75           Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa                     80                  85                 90           Xaa Xaa Phe Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa                     95                 100                 105           Xaa Xaa Xaa Xaa Gln Gln                    110                     wherein         Xaa at position 3 is Ser, Lys, Gly, Asp, Met, Gln, or Arg;     Xaa at position 4 is Asn, His, Leu, Ile, Phe, Arg, or Gln;     Xaa at position 5 is Met, Phe, Ile, Arg, Gly, Ala, or Cys;     Xaa at position 6 is Ile, Cys, Gln, Glu, Arg, Pro, or Ala;     Xaa at position 7 is Asp, Phe, Lys, Arg, Ala, Gly, Glu,     Gln, Asn, Thr, Ser or Val;     Xaa at position 8 is Glu, Trp, Pro, Ser, Ala, His, Asp,     Asn, Gln, Leu, Val, or Gly;     Xaa at position 9 is Ile, Val, Ala, Leu, Gly, Trp, Lys,     Phe, Leu, Ser, or Arg;     Xaa at position 10 is Ile, Gly, Val, Arg, Ser, Phe, or     Leu;     Xaa at position 11 is Thr, His, Gly, Gln, Arg, Pro, or     Ala;     Xaa at position 12 is His, Thr, Phe, Gly, Arg, Ala, or     Trp;     Xaa at position 13 is Leu, Gly, Arg, Thr, Ser, or Ala;     Xaa at position 14 is Lys, Arg, Leu, Gln, Gly, Pro, Val or     Trp;     Xaa at position 15 is Gln, Asn, Leu, Pro, Arg, or Val;     Xaa at position 16 is Pro, His, Thr, Gly, Asp, Gln, Ser,     Leu, or Lys;     Xaa at position 17 is Pro, Asp, Gly, Ala, Arg, Leu, or     Gln;     Xaa at position 18 is Leu, Val, Arg, Gln, Asn, Gly, Ala,     or Glu;     Xaa at position 19 is Pro, Leu, Gln, Ala, Thr, or Glu;     Xaa at position 20 is Leu, Val, Gly, Ser, Lys, Glu, Gln,     Thr, Arg, Ala, Phe, Ile or Met;     Xaa at position 21 is Leu, Ala, Gly, Asn, Pro, Gln, or     Val;     Xaa at position 22 is Asp, Leu, or Val;     Xaa at position 23 is Phe, Ser, Pro, Trp, or Ile;     Xaa at position 24 is Asn, or Ala;     Xaa at position 26 is Leu, Trp, or Arg;     Xaa at position 27 is Asn, Cys, Arg, Leu, His, Met, Pro;     Xaa at position 28 is Gly, Asp, Ser, Cys, Ala, Lys, Asn,     Thr, Leu, Val, Glu, Phe, Tyr, Ile or Met;     Xaa at position 29 is Glu, Asn, Tyr, Leu, Phe, Asp, Ala,     Cys, Gln, Arg, Thr, Gly or Ser;     Xaa at position 30 is Asp, Ser, Leu, Arg, Lys, Thr,Met,     Trp, Glu, Asn, Gln, Ala or Pro;     Xaa at position 31 is Gln, Pro, Phe, Val, Met, Leu, Thr,     Lys, Asp, Asn, Arg, Ser, Ala, Ile, Glu, His or Trp;     Xaa at position 32 is Asp, Phe, Ser, Thr, Cys, Glu, Asn,     Gln, Lys, His, Ala, Tyr, Ile, Val or Gly;     Xaa at position 33 is Ile, Gly, Val, Ser, Arg, Pro, or     His;     Xaa at position 34 is Leu, Ser, Cys, Arg, Ile, His, Phe,     Glu, Lys, Thr, Ala, Met, Val or Asn;     Xaa at position 35 is Met, Arg, Ala, Gly, Pro, Asn, His,     or Asp;     Xaa at position 36 is Glu, Leu, Thr, Asp, Tyr, Lys, Asn,     Ser, Ala, Ile, Val, His, Phe, Met or Gln;     Xaa at position 37 is Asn, Arg, Met, Pro, Ser, Thr, or     His;     Xaa at position 38 is Asn, His, Arg, Leu, Gly, Ser, or     Thr;     Xaa at position 39 is Leu, Thr, Ala, Gly, Glu, Pro, Lys,     Ser, Met, or;     Xaa at position 40 is Arg, Asp, Ile, Ser, Val, Thr, Gln,     Asn, Lys, His, Ala or Leu;     Xaa at position 41 is Arg, Thr, Val, Ser, Leu, or Gly;     Xaa at position 42 is Pro, Gly, Cys, Ser, Gln, Glu, Arg,     His, Thr, Ala, Tyr, Phe, Leu, Val or Lys;     Xaa at position 43 is Asn or Gly;     Xaa at position 44 is Leu, Ser, Asp, Arg, Gln, Val, or     Cys;     Xaa at position 45 is Glu Tyr, His, Leu, Pro, or Arg;     Xaa at position 46 is Ala, Ser, Pro, Tyr, Asn, or Thr;     Xaa at position 47 is Phe, Asn, Glu, Pro, Lys, Arg, or     Ser;     Xaa at position 48 is Asn, His, Val, Arg, Pro, Thr, Asp,     or Ile;     Xaa at position 49 is Arg, Tyr, Trp, Lys, Ser, His, Pro,     or Val;     Xaa at position 50 is Ala, Asn, Pro, Ser, or Lys;     Xaa at position 51 is Val, Thr, Pro, His, Leu, Phe, or     Ser;     Xaa at position 52 is Lys, Ile, Arg, Val, Asn, Glu, or     Ser;     Xaa at position 53 is Ser, Ala, Phe, Val, Gly, Asn, Ile,     Pro, or His;     Xaa at position 54 is Leu, Val, Trp, Ser, Ile, Phe, Thr,     or His;     Xaa at position 55 is Gln, Ala, Pro, Thr, Glu, Arg, Trp,     Gly, or Leu;     Xaa at position 56 is Asn, Leu, Val, Trp, Pro, or Ala;     Xaa at position 57 is Ala, Met, Leu, Pro, Arg, Glu, Thr,     Gln, Trp, or Asn;     Xaa at position 58 is Ser, Glu, Met, Ala, His, Asn, Arg,     or Asp;     Xaa at position 59 is Ala, Glu, Asp, Leu, Ser, Gly, Thr,     or Arg;     Xaa at position 60 is Ile, Met, Thr, Pro, Arg, Gly, Ala;     Xaa at position 61 is Glu, Lys, Gly, Asp, Pro, Trp, Arg,     Ser, Gln, or Leu;     Xaa at position 62 is Ser, Val, Ala, Asn, Trp, Glu, Pro,     Gly, or Asp;     Xaa at position 63 is Ile, Ser, Arg, Thr, or Leu;     Xaa at position 64 is Leu, Ala, Ser, Glu, Phe, Gly, or     Arg;     Xaa at position 65 is Lys, Thr, Gly, Asn, Met, Arg, Ile,     or Asp;     Xaa at position 66 is Asn, Trp, Val, Gly, Thr, Leu, Glu,     or Arg;     Xaa at position 67 is Leu, Gln, Gly, Ala, Trp, Arg, Val,     or Lys;     Xaa at position 68 is Leu, Gln, Lys, Trp, Arg, Asp, Glu,     Asn, His, Thr, Ser, Ala, Tyr, Phe, Ile, Met or Val;     Xaa at position 69 is Pro, Ala, Thr, Trp, Arg, or Met;     Xaa at position 70 is Cys, Glu, Gly, Arg, Met, or Val;     Xaa at position 71 is Leu, Asn, Val, or Gln;     Xaa at position 72 is Pro, Cys, Arg, Ala, or Lys;     Xaa at position 73 is Leu, Ser, Trp, or Gly;     Xaa at position 74 is Ala, Lys, Arg, Val, or Trp;     Xaa at position 75 is Thr, Asp, Cys, Leu, Val, Glu, His,     Asn, or Ser;     Xaa at position 76 is Ala, Pro, Ser, Thr, Gly, Asp, Ile,     or Met;     Xaa at position 77 is Ala, Pro, Ser, Thr, Phe, Leu, Asp,     or His;     Xaa at position 78 is Pro, Phe, Arg, Ser, Lys, His, Ala,     Gly, Ile or Leu;     Xaa at position 79 is Thr, Asp, Ser, Asn, Pro, Ala, Leu,     or Arg;     Xaa at position 80 is Arg, Ile, Ser, Glu, Leu, Val, Gln,     Lys, His, Ala or Pro;     Xaa at position 81 is His, Gln, Pro, Arg, Val, Leu, Gly,     Thr, Asn, Lys, Ser, Ala, Trp, Phe, Ile or Tyr;     Xaa at position 82 is Pro, Lys, Tyr, Gly, Ile, or Thr;     Xaa at position 83 is Ile, Val, Lys, Ala, or Asn;     Xaa at position 84 is His, Ile, Asn, Leu, Asp, Ala, Thr,     Glu, Gln, Ser, Phe, Met, Val, Lys, Arg, Tyr or Pro;     Xaa at position 85 is Ile, Leu, Arg, Asp, Val, Pro, Gln,     Gly, Ser, Phe, or His;     Xaa at position 86 is Lys, Tyr, Leu, His, Arg, Ile, Ser,     Gln, Pro;     Xaa at position 87 is Asp, Pro, Met, Lys, His, Thr, Val,     Tyr, Glu, Asn, Ser, Ala, Gly, Ile, Leu or Gln;     Xaa at position 88 is Gly, Leu, Glu, Lys, Ser, Tyr, or     Pro;     Xaa at position 89 is Asp, or Ser;     Xaa at position 90 is Trp, Val, Cys, Tyr, Thr, Met, Pro,     Leu, Gln, Lys, Ala, Phe, or Gly;     Xaa at position 91 is Asn, Pro, Ala, Phe, Ser, Trp, Gln,     Tyr, Leu, Lys, Ile, Asp, or His;     Xaa at position 92 is Glu, Ser, Ala, Lys, Thr, Ile, Gly,     or Pro;     Xaa at position 94 is Arg, Lys, Asp, Leu, Thr, Ile, Gln,     His, Ser, Ala, or Pro;     Xaa at position 95 is Arg, Thr, Pro, Glu, Tyr, Leu, Ser,     or Gly;     Xaa at position 96 is Lys, Asn, Thr, Leu, Gln, Arg,     His, Glu, Ser, Ala or Trp;     Xaa at position 97 is Leu, Ile, Arg, Asp, or Met;     Xaa at position 98 is Thr, Val, Gln, Tyr, Glu, His, Ser,     or Phe;     Xaa at position 99 is Phe, Ser, Cys, His, Gly, Trp, Tyr,     Asp, Lys, Leu, Ile, Val or Asn;     Xaa at position 100 is Tyr, Cys, His, Ser, Trp, Arg, or     Leu;     Xaa at position 101 is Leu, Asn, Val, Pro, Arg, Ala, His,     Thr, Trp, or Met;     Xaa at position 102 is Lys, Leu, Pro, Thr, Met, Asp, Val,     Glu, Arg, Trp, Ser, Asn, His, Ala, Tyr, Phe, Gln, or     Ile;     Xaa at position 103 is Thr, Ser, Asn, Ile, Trp, Lys, or     Pro;     Xaa at position 104 is Leu, Ser, Pro, Ala, Glu, Cys, Asp,     or Tyr;     Xaa at position 105 is Glu, Ser, Lys, Pro, Leu, Thr, Tyr,     or Arg;     Xaa at position 106 is Asn, Ala, Pro, Leu, His, Val, or     Gln;     Xaa at position 107 is Ala, Ser, Ile, Asn, Pro, Lys, Asp,     or Gly;     Xaa at position 108 is Gln, Ser, Met, Trp, Arg, Phe, Pro,     His, Ile, Tyr, or Cys;     Xaa at position 109 is Ala, Met, Glu, His, Ser, Pro, Tyr,     or Leu;                                                                                                                                                                                                                                            and which can additionally have Met- or Met-Ala- preceding the amino acid in position 1; and wherein from 4 to 44 of the amino acids designated by Xaa are different from the corresponding native amino acids of (1-133) human interleukin-3;    a colony stimulating factor selected from the group consisting of GM-CSF, CSF-1, G-CSF, Meg-CSF (more recently referred to as c-mpl ligand), M-CSF, erythropoietin (EPO), IL-1, IL-4, IL-2, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, IL-11, IL-12, IL-13, LIF, flt3/flk2, human growth hormone, B-cell growth factor, B-cell differentiation factor, eosinophil differentiation factor and stem cell factor (SCF); and    at least one non-toxic pharmaceutically acceptable carrier.    
     
     
         6 . A composition of  claim 5 , wherein said human interleukin-3 mutant polypeptide is of the Formula:  
       
         
           
                 
                 
                 
               
                     
                 
                   Asn Cys Xaa Xaa Xaa Ile Xaa Glu Xaa Xaa Xaa Xaa Leu Lys Xaa 
                   ]SEQ ID NO:5] 
                     
                 
                   1                5                   10                  15 
                 
                     
                 
                   Xaa Xaa Xaa Xaa Xaa Xaa Asp Xaa Xaa Asn Leu Asn Xaa Glu Xaa 
                 
                                    20                  25                  30 
                 
                     
                 
                   Xaa Xaa Ile Leu Met Xaa Xaa Asn Leu Xaa Xaa Xaa Asn Leu Glu 
                 
                                    35                  40                  45 
                 
                     
                 
                   Xaa Phe Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Asn Xaa Xaa Xaa Ile 
                 
                                    50                  55                  60 
                 
                     
                 
                   Glu Xaa Xaa Leu Xaa Xaa Leu Xaa Xaa Cys Xaa Pro Xaa Xaa Thr 
                 
                                    65                  70                  75 
                 
                     
                 
                   Ala Xaa Pro Xaa Arg Xaa Xaa Xaa Xaa Xaa Xaa Xaa Gly Asp Xaa 
                 
                                    80                  85                  90 
                 
                     
                 
                   Xaa Xaa Phe Xaa Xaa Lys Leu Xaa Phe Xaa Xaa Xaa Xaa Leu Glu 
                 
                                    95                 100                 105 
                 
                     
                 
                   Xaa Xaa Xaa Xaa Gln Gln 
                 
                                   110 
                 
                     
                 
                 
                 
               
                   wherein 
                     
                 
                   Xaa at position 3 is Ser, Gly, Asp, Met, or Gln; 
                 
                   Xaa at position 4 is Asn, His, or Ile; 
                 
                   Xaa at position 5 is Met or Ile; 
                 
                   Xaa at position 7 is Asp or Glu; 
                 
                   Xaa at position 9 is lie, Ala, Leu, or Gly; 
                 
                   Xaa at position 10 is Ile, Val, or Leu; 
                 
                   Xaa at position ii is Thr, His, Gln, or Ala; 
                 
                   Xaa at position 12 is His or Ala; 
                 
                   Xaa at position 15 is Gln, Asn, or Val; 
                 
                   Xaa at position 16 is Pro, Gly, or Gln; 
                 
                   Xaa at position i7 is Pro, Asp, Gly, or Gln; 
                 
                   Xaa at position 18 is Leu, Arg, Gln, Asn, Gly, Ala, or 
                 
                   Glu; 
                 
                   Xaa at position 19 is Pro or Glu; 
                 
                   Xaa at position 20 is Leu, Val, Gly, Ser, Lys, Ala, Arg, 
                 
                   Gln, Glu, Ile, Phe, Thr or Met; 
                 
                   Xaa at position 21 is Leu, Ala, Asn, Pro, Gln, or Val; 
                 
                   Xaa at position 23 is Phe, Ser, Pro, or Trp; 
                 
                   Xaa at position 24 is Asn or Ala; 
                 
                   Xaa at position 28 is Gly, Asp, Ser, Cys, Ala, Asn, Ile, 
                 
                   Leu, Met Tyr or Arg; 
                 
                   Xaa at position 30 is Asp or Glu; 
                 
                   Xaa at position 31 is Gln, Val, Met, Leu, Thr, Ala, Asn, 
                 
                   Glu, Ser or Lys; 
                 
                   Xaa at position 32 is Asp, Phe, Ser, Thr, Ala, Asn, Gln, 
                 
                   Glu, His, Ile, Lys, Tyr, Val or Cys; 
                 
                   Xaa at position 36 is Glu, Ala, Asn, Ser or Asp; 
                 
                   Xaa at position 37 is Asn, Arg, Met, Pro, Ser, Thr, or 
                 
                   His; 
                 
                   Xaa at position 40 is Arg or Ala; 
                 
                   Xaa at position 41 is Arg, Thr, Val, Leu, or Gly; 
                 
                   Xaa at position 42 is Pro, Gly, Ser, Gln, Ala, Arg, Asn, 
                 
                   Glu, Leu, Thr, Val or Lys; 
                 
                   Xaa at position 46 is Ala or Ser; 
                 
                   Xaa at position 48 is Asn, Pro, Thr, or Ile; 
                 
                   Xaa at position 49 is Arg or Lys; 
                 
                   Xaa at position 50 is Ala or Asn; 
                 
                   Xaa at position 51 is Val or Thr; 
                 
                   Xaa at position 52 is Lys or Arg; 
                 
                   Xaa at position 53 is Ser, Phe, or His; 
                 
                   Xaa at position 54 is Leu, Ile, Phe, or His; 
                 
                   Xaa at position 55 is Gln, Ala, Pro, Thr, Glu, Arg, or 
                 
                   Gly; 
                 
                   Xaa at position 57 is Ala, Pro, or Arg; 
                 
                   Xaa at position 58 is Ser, Glu, Arg, or Asp; 
                 
                   Xaa at position 59 is Ala or Leu; 
                 
                   Xaa at position 62 is Ser, Val, Ala, Asn, Glu, Pro, or 
                 
                   Gly; 
                 
                   Xaa at position 63 is Ile or Leu; 
                 
                   Xaa at position 65 is Lys, Thr, Gly, Asn, Met, Arg, Ile, 
                 
                   Gly, or Asp; 
                 
                   Xaa at position 66 is Asn, Gly, Glu, or Arg; 
                 
                   Xaa at position 68 is Leu, Gln, Trp, Arg, Asp, Ala, Asn, 
                 
                   Glu, His, Ile, Met, Phe, Ser, Thr, Tyr or Val; 
                 
                   Xaa at position 69 is Pro or Thr; 
                 
                   Xaa at position 71 is Leu or Val; 
                 
                   Xaa at position 73 is Leu or Ser; 
                 
                   Xaa at position 74 is Ala or Trp; 
                 
                   Xaa at position 77 is Ala or Pro; 
                 
                   Xaa at position 79 is Thr, Asp, Ser, Pro, Ala, Leu, or 
                 
                   Arg; 
                 
                   Xaa at position 81 is His, Pro, Arg, Val, Leu, Gly, Asn, 
                 
                   Phe, Ser or Thr; 
                 
                   Xaa at position 82 is Pro or Tyr; 
                 
                   Xaa at position 83 is Tie or Val; 
                 
                   Xaa at position 84 is His, Ile, Asn, Leu, Ala, Thr, Leu, 
                 
                   Arg, Gln, Leu, Lys, Met, Ser, Tyr, Val or Pro; 
                 
                   Xaa at position 85 is Ile, Leu, or Val; 
                 
                   Xaa at position 86 is Lys, Arg, Ile, Gln, Pro, or Ser; 
                 
                   Xaa at position 87 is Asp, Pro, Met, Lys, His, Thr, Asn, 
                 
                   Ile, Leu or Tyr; 
                 
                   Xaa at position 90 is Trp or Leu; 
                 
                   Xaa at position 91 is Asn, Pro, Ala, Ser, Trp, Gln, Tyr, 
                 
                   Leu, Lys, Ile, Asp, or His; 
                 
                   Xaa at position 92 is Glu, or Gly; 
                 
                   Xaa at position 94 is Arg, Ala, or Ser; 
                 
                   Xaa at position 95 is Arg, Thr, Glu, Leu, or Ser; 
                 
                   Xaa at position 98 is Thr, Val, or Gln; 
                 
                   Xaa at position 100 is Tyr or Trp; 
                 
                   Xaa at position 101 is Leu or Ala; 
                 
                   Xaa at position 102 is Lys, Thr, Val, Trp, Ser, Ala, His, 
                 
                   Met, Phe, Tyr or Ile; 
                 
                   Xaa at position 103 is Thr or Ser; 
                 
                   Xaa at position 106 is Asn, Pro, Leu, His, Val, or Gln; 
                 
                   Xaa at position 107 is Ala, Ser, Ile, Asn, Pro, Asp, or 
                 
                   Gly; 
                 
                   Xaa at position 108 is Gln, Ser, Met, Trp, Arg, Phe, Pro, 
                 
                   His, Ile, Tyr, or Cys; 
                 
                   Xaa at position 109 is Ala, Met, Glu, His, Ser, Pro, Tyr, 
                 
                   or Leu; 
                 
                     
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
       which can additionally have Met- or Met-Ala- preceding the amino acid in position 1; and wherein from 4 to 35 of the amino acids designated by Xaa are different from the corresponding amino acids of native human interleukin-3.  
     
     
         7 . A composition of  claim 6 , wherein said human interleukin-3 mutant polypeptide is of the Formula:  
       
         
           
                 
                 
                 
               
                     
                 
                   Asn Cys Xaa Xaa Met Ile Asp Glu Xaa Ile Xaa Xaa Leu Lys Xaa 
                   [SEQ ID NO:6] 
                     
                 
                   1                5                   10                 15 
                 
                     
                 
                   Xaa Pro Xaa Pro Xaa Xaa Asp Phe Xaa Asn Leu Asn Xaa Glu Asp 
                 
                                    20                  25                 30 
                 
                     
                 
                   Xaa Xaa Ile Leu Met Xaa Xaa Asn Leu Arg Xaa Xaa Asn Leu Glu 
                 
                                    35                  40                 45 
                 
                     
                 
                   Ala Phe Xaa Arg Xaa Xaa LYS Xaa Xaa Xaa Asn Ala Ser Ala Ile 
                 
                                    50                  55                 60 
                 
                     
                 
                   Glu Xaa Xaa Leu Xaa Xaa Leu Xaa Pro Cys Leu Pro Xaa Xaa Thr 
                 
                                    65                  70                 75 
                 
                     
                 
                   Ala Xaa Pro Xaa Arg Xaa Pro Ile Xaa Xaa Xaa Xaa Gly Asp Trp 
                 
                                    80                  85                 90 
                 
                     
                 
                   Xaa Glu Phe Xaa Xaa Lys Leu Xaa Phe Tyr Leu Xaa Xaa Leu Glu 
                 
                                    95                 100                 105 
                 
                     
                 
                   Xaa Xaa Xaa Xaa Gln Gln 
                 
                                    110 
                 
                     
                 
                 
                 
               
                   wherein 
                     
                 
                   Xaa at position 3 is Ser, Gly, Asp, or Gln; 
                 
                   Xaa at position 4 is Asn, His, or Ile; 
                 
                   Xaa at position 9 is Ile, Ala, Leu, or Gly; 
                 
                   Xaa at position 11 is Thr, His, or Gln; 
                 
                   Xaa at position 12 is His or Ala; 
                 
                   Xaa at position 15 is Gln or Asn; 
                 
                   Xaa at position 16 is Pro or Gly; 
                 
                   Xaa at position 18 is Leu, Arg, Asn, or Ala; 
                 
                   Xaa at position 20 is Leu, Val, Ser, Ala, Arg, Gln, Glu, 
                 
                   Ile, Phe, Thr or Met; 
                 
                   Xaa at position 21 is Leu, Ala, Asn, or Pro; 
                 
                   Xaa at position 24 is Asn or Ala; 
                 
                   Xaa at position 28 is Gly, Asp, Ser, Ala, Asn, Ile, Leu, 
                 
                   Met, Tyr or Arg; 
                 
                   Xaa at position 31 is Gln, Val, Met, Leu, Ala, Asn, Glu or 
                 
                   Lys; 
                 
                   Xaa at position 32 is Asp, Phe, Ser, Ala, Gln, Glu, His, 
                 
                   Val or Thr; 
                 
                   Xaa at position 36 is Glu, Asn, Ser or Asp; 
                 
                   Xaa at position 37 is Asn, Arg, Pro, Thr, or His; 
                 
                   Xaa at position 41 is Arg, Leu, or Gly; 
                 
                   Xaa at position 42 is Pro, Gly, Ser, Ala, Asn, Val, Leu or 
                 
                   Gln; 
                 
                   Xaa at position 48 is Asn, Pro, or Thr; 
                 
                   Xaa at position 50 is Ala or Asn; 
                 
                   Xaa at position 51 is Val or Thr; 
                 
                   Xaa at position 53 is Ser or Phe; 
                 
                   Xaa at position 54 is Leu or Phe; 
                 
                   Xaa at position 55 is Gln, Ala, Glu, or Arg; 
                 
                   Xaa at position 62 is Ser, Val, Asn, Pro, or Gly; 
                 
                   Xaa at position 63 is Ile or Leu; 
                 
                   Xaa at position 65 is Lys, Asn, Met, Arg, Ile, or Gly; 
                 
                   Xaa at position 66 is Asn, Gly, Glu, or Arg; 
                 
                   Xaa at position 68 is Leu, Gln, Trp, Arg, Asp, Asn, Glu, 
                 
                   His, Met, Phe, Ser, Thr, Tyr or Val; 
                 
                   Xaa at position 73 is Leu or Ser; 
                 
                   Xaa at position 74 is Ala or Trp; 
                 
                   Xaa at position 77 is Ala or Pro; 
                 
                   Xaa at position 79 is Thr, Asp, or Ala; 
                 
                   Xaa at position 81 is His, Pro, Arg, Val, Gly, Asn, Ser or 
                 
                   Thr; 
                 
                   Xaa at position 84 is His, Ile, Asn, Ala, Thr, Arg, Gln, 
                 
                   Glu, Lys, Met, Ser, Tyr, Val or Leu; 
                 
                   Xaa at position 85 is Ile or Leu; 
                 
                   Xaa at position 86 is Lys or Arg; 
                 
                   Xaa at position 87 is Asp, Pro, Met, Lys, His, Pro, Asn, 
                 
                   Ile, Leu or Tyr; 
                 
                   Xaa at position 91 is Asn, Pro, Ser, Ile or Asp; 
                 
                   Xaa at position 94 is Arg, Ala, or Ser; 
                 
                   Xaa at position 95 is Arg, Thr, Glu, Leu, or Ser; 
                 
                   Xaa at position 98 is Thr or Gln; 
                 
                   Xaa at position 102 is Lys, Val, Trp, or Ile; 
                 
                   Xaa at position 103 is Thr, Ala, His, Phe, Tyr or Ser; 
                 
                   Xaa at position 106 is Asn, Pro, Leu, His, Val, or Gln; 
                 
                   Xaa at position 107 is Ala, Ser, Ile, Pro, or Asp; 
                 
                   Xaa at position 108 is Gln, Met, Trp, Phe, Pro, His, Ile, 
                 
                   or Tyr; 
                 
                   Xaa at position 109 is Ala, Met, Glu, Ser, or Leu; 
                 
                     
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
       and which can additionally have Met- or Met-Ala- preceding the amino acid in position 1; and wherein from 4 to 26 of the amino acids designated by Xaa are different from the corresponding amino acids of native (1-133)human interleukin-3.  
     
     
         8 . The composition of  claim 7 , wherein said human interleukin-3 mutant polypeptide is of the Formula:  
       
         
           
                 
                 
               
                     
                 
                   Xaa at position 17 is Ser, Lys, Asp, Met, Gln, or 
                     
                 
                   Arg; 
                 
                     
                 
                   Xaa at position 18 is Asn, His, Leu, Ile, Phe, 
                 
                   Arg, or Gln; 
                 
                     
                 
                   Xaa at position 19 is Met, Arg, Gly, Ala, or Cys; 
                 
                     
                 
                   Xaa at position 20 is Ile, Cys, Gln, Glu, Arg, 
                 
                   Pro, or Ala; 
                 
                     
                 
                   Xaa at position 21 is Asp, Phe, Lys, Arg, Ala, 
                 
                   Gly, or Val; 
                 
                     
                 
                   Xaa at position 22 is Glu, Trp, Pro, Ser, Ala, 
                 
                   His, or Gly; 
                 
                     
                 
                   Xaa at position 23 is Ile, Ala, Gly, Trp, Lys, 
                 
                   Leu, Ser, or Arg; 
                 
                     
                 
                   Xaa at position 24 is Ile, Gly, Arg, or Ser; 
                 
                     
                 
                   Xaa at position 25 is Thr, His, Gly, Gln, Arg, 
                 
                   Pro, or Ala; 
                 
                     
                 
                   Xaa at position 26 is His, Thr, Phe, Gly, Ala, or 
                 
                   Trp; 
                 
                     
                 
                   Xaa at position 27 is Leu, Gly, Arg, Thr, Ser, or 
                 
                   Ala; 
                 
                     
                 
                   Xaa at position 28 is Lys, Leu, Gln, Gly, Pro, Val 
                 
                   or Trp; 
                 
                     
                 
                   Xaa at position 29 is Gln, Asn, Pro, Arg, or Val; 
                 
                     
                 
                   Xaa at position 30 is Pro, His, Thr, Gly, Asp, 
                 
                   Gln, Ser, Leu, or Lys; 
                 
                     
                 
                   Xaa at position 31 is Pro, Asp, Gly, Arg, Leu, or 
                 
                   Gln; 
                 
                     
                 
                   Xaa at position 32 is Leu, Arg, Gln, Asn, Gly, 
                 
                   Ala, or Glu; 
                 
                     
                 
                   Xaa at position 33 is Pro, Leu, Gln, Thr, or Glu; 
                 
                     
                 
                   Xaa at position 34 is Leu, Gly, Ser, or Lys; 
                 
                     
                 
                   Xaa at position 35 is Leu, Ala, Gly, Asn, Pro, or 
                 
                   Gln; 
                 
                     
                 
                   Xaa at position 36 is Asp, Leu, or Val; 
                 
                     
                 
                   Xaa at position 37 is Phe, Ser, or Pro; 
                 
                     
                 
                   Xaa at position 38 is Asn, or Ala; 
                 
                     
                 
                   Xaa at position 40 is Leu, Trp, or Arg; 
                 
                     
                 
                   Xaa at position 41 is Asn, Cys, Arg, Leu, His, 
                 
                   Met, Pro; 
                 
                     
                 
                   Xaa at position 42 is Gly, Asp, Ser, Cys, or Ala; 
                 
                     
                 
                   Xaa at position 42 is Glu, Asn, Tyr, Leu, Phe, 
                 
                   Asp, Ala, Cys, or Ser; 
                 
                     
                 
                   Xaa at position 44 is Asp, Ser, Leu, Arg, Lys, 
                 
                   Thr, Met, Trp, or Pro; 
                 
                     
                 
                   Xaa at position 45 is Gln, Pro, Phe, Val, Met, 
                 
                   Leu, Thr, Lys, or Trp; 
                 
                     
                 
                   Xaa at position 46 is Asp, Phe, Ser, Thr, Cys, or 
                 
                   Gly; 
                 
                     
                 
                   Xaa at position 47 is Ile, Gly, Ser, Arg, Pro, or 
                 
                   His; 
                 
                     
                 
                   Xaa at position 48 is Leu, Ser, Cys, Arg, His, 
                 
                   Phe, or Asn; 
                 
                     
                 
                   Xaa at position 49 is Met, Arg, Ala, Gly, Pro, 
                 
                   Asn, His, or Asp; 
                 
                     
                 
                   Xaa at position 50 is Glu, Leu, Thr, Asp, or Tyr; 
                 
                     
                 
                   Xaa at position 51 is Asn, Arg, Met, Pro, Ser, 
                 
                   Thr, or His; 
                 
                     
                 
                   Xaa at position 52 is Asn, His, Arg, Leu, Gly, 
                 
                   Ser, or Thr; 
                 
                     
                 
                   Xaa at position 53 is Leu, Thr, Ala, Gly, Glu, 
                 
                   Pro, Lys, Ser, or; 
                 
                     
                 
                   Xaa at position 54 is Arg, Asp, Ile, Ser, Val, 
                 
                   Thr, Gln, or Leu; 
                 
                     
                 
                   Xaa at position 55 is Arg, Thr, Val, Ser, Leu, or 
                 
                   Gly; 
                 
                     
                 
                   Xaa at position 56 is Pro, Gly, Cys, Ser, Gln, or 
                 
                   Lys; 
                 
                     
                 
                   Xaa at position 57 is Asn or Gly; 
                 
                     
                 
                   Xaa at position 58 is Leu, Ser, Asp, Arg, Gln, 
                 
                   Val, or Cys; 
                 
                     
                 
                   Xaa at position 59 is Glu Tyr, His, Leu, Pro, or 
                 
                   Arg; 
                 
                     
                 
                   Xaa at position 60 is Ala, Ser, Tyr, Asn, or Thr; 
                 
                     
                 
                   Xaa at position 61 is Phe, Asn, Glu, Pro, Lys, 
                 
                   Arg, or Ser; 
                 
                     
                 
                   Xaa at position 62 is Asn His, Val, Arg, Pro, Thr, 
                 
                   or Ile; 
                 
                     
                 
                   Xaa at position 63 is Arg, Tyr, Trp, Ser, Pro, or 
                 
                   Val; 
                 
                     
                 
                   Xaa at position 64 is Ala, Asn, Ser, or Lys; 
                 
                     
                 
                   Xaa at position 65 is Val, Thr, Pro, His, Leu, 
                 
                   Phe, or Ser; 
                 
                     
                 
                   Xaa at position 66 is Lys, Ile, Val, Asn, Glu, or 
                 
                   Ser; 
                 
                     
                 
                   Xaa at position 67 is Ser, Ala, Phe, Val, Gly, 
                 
                   Asn, Ile, Pro, or His; 
                 
                     
                 
                   Xaa at position 68 is Leu, Val, Trp, Ser, Thr, or 
                 
                   His; 
                 
                     
                 
                   Xaa at position 69 is Gln, Ala, Pro, Thr, Arg, 
                 
                   Trp, Gly, or Leu; 
                 
                     
                 
                   Xaa at position 70 is Asn, Leu, Val, Trp, Pro, or 
                 
                   Ala; 
                 
                     
                 
                   Xaa at position 71 is Ala, Met, Leu, Arg, Glu, 
                 
                   Thr, Gln, Trp, or Asn; 
                 
                     
                 
                   Xaa at position 72 is Ser, Glu, Met, Ala, His, 
                 
                   Asn, Arg, or Asp; 
                 
                     
                 
                   Xaa at position 73 is Ala, Glu, Asp, Leu, Ser, 
                 
                   Gly, Thr, or Arg; 
                 
                     
                 
                   Xaa at position 74 is Ile, Thr, Pro, Arg, Gly, 
                 
                   Ala; 
                 
                     
                 
                   Xaa at position 75 is Glu, Lys, Gly, Asp, Pro, 
                 
                   Trp, Arg, Ser, or Leu; 
                 
                     
                 
                   Xaa at position 76 is Ser, Val, Ala, Asn, Trp, 
                 
                   Glu, Pro, Gly, or Asp; 
                 
                     
                 
                   Xaa at position 77 is Ile, Ser, Arg, or Thr; 
                 
                     
                 
                   Xaa at position 78 is Leu, Ala, Ser, Glu, Gly, or 
                 
                   Arg; 
                 
                     
                 
                   Xaa at position 79 is Lys, Thr, Gly, Asn, Met, 
                 
                   Ile, or Asp; 
                 
                     
                 
                   Xaa at position 80 is Asn, Trp, Val, Gly, Thr, 
                 
                   Leu, or Arg; 
                 
                     
                 
                   Xaa at position 81 is Leu, Gln, Gly, Ala, Trp, 
                 
                   Arg, or Lys; 
                 
                     
                 
                   Xaa at position 82 is Leu, Gln, Lys, Trp, Arg, or 
                 
                   Asp; 
                 
                     
                 
                   Xaa at position 83 is Pro, Thr, Trp, Arg, or Met; 
                 
                     
                 
                   Xaa at position 84 is Cys, Glu, Gly, Arg, Met, or 
                 
                   Val; 
                 
                     
                 
                   Xaa at position 85 is Leu, Asn, or Gln; 
                 
                     
                 
                   Xaa at position 86 is Pro, Cys, Arg, Ala, or Lys; 
                 
                     
                 
                   Xaa at position 87 is Leu, Ser, Trp, or Gly; 
                 
                     
                 
                   Xaa at position 88 is Ala, Lys, Arg, Val, or Trp; 
                 
                     
                 
                   Xaa at position 89 is Thr, Asp, Cys, Leu, Val, 
                 
                   Glu, His, or Asn; 
                 
                     
                 
                   Xaa at position 90 is Ala, Ser, Asp, Ile, or Met; 
                 
                     
                 
                   Xaa at position 91 is Ala, Ser, Thr, Phe, Leu, 
                 
                   Asp, or His; 
                 
                     
                 
                   Xaa at position 92 is Pro, Phe, Arg, Ser, Lys, 
                 
                   His, or Leu; 
                 
                     
                 
                   Xaa at position 93 is Thr, Asp, Ser, Asn, Pro, 
                 
                   Ala, Leu, or Arg; 
                 
                     
                 
                   Xaa at position 94 is Arg, Ile, Ser, Glu, Leu, 
                 
                   Val, or Pro; 
                 
                     
                 
                   Xaa at position 95 is His, Gln, Pro, Val, Leu, Thr 
                 
                   or Tyr; 
                 
                     
                 
                   Xaa at position 96 is Pro, Lys, Tyr, Gly, Ile, or 
                 
                   Thr; 
                 
                     
                 
                   Xaa at position 97 is Ile, Lys, Ala, or Asn; 
                 
                     
                 
                   Xaa at position 98 is His, Ile, Asn, Leu, Asp, 
                 
                   Ala, Thr, or Pro; 
                 
                     
                 
                   Xaa at position 99 is Ile, Arg, Asp, Pro, Gln, 
                 
                   Gly, Phe, or His; 
                 
                     
                 
                   Xaa at position 100 is Lys, Tyr, Leu, His, Ile, 
                 
                   Ser, Gln, or Pro; 
                 
                     
                 
                   Xaa at position 101 is Asp, Pro, Met, Lys, His, 
                 
                   Thr, Val, Tyr, or Gln; 
                 
                     
                 
                   Xaa at position 102 is Gly, Leu, Glu, Lys, Ser, 
                 
                   Tyr, or Pro; 
                 
                     
                 
                   Xaa at position 103 is Asp, or Ser; 
                 
                     
                 
                   Xaa at position 104 is Trp, Val, Cys, Tyr, Thr, 
                 
                   Met, Pro, Leu, Gln, Lys, Ala, Phe, or Gly; 
                 
                     
                 
                   Xaa at position 105 is Asn, Pro, Ala, Phe, Ser, 
                 
                   Trp, Gln, Tyr, Leu, Lys, Ile, or His; 
                 
                     
                 
                   Xaa at position 106 is Glu, Ser, Ala, Lys, Thr, 
                 
                   Ile, Gly, or Pro; 
                 
                     
                 
                   Xaa at position 108 is Arg, Asp, Leu, Thr, Ile, or 
                 
                   Pro; 
                 
                     
                 
                   Xaa at position 109 is Arg, Thr, Pro, Glu, Tyr, 
                 
                   Leu, Ser, or Gly. 
                 
                     
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         9 . A composition of  claim 8 , wherein said human interleukin-3 mutant polypeptide is of the Formula:  
       
         
           
                 
                 
                 
               
                     
                 
                           1               5                  10 
                     
                     
                 
                   (Met) m —Ala Pro Met Thr Gln Thr Thr Ser Leu Lys Thr 
                   [SEQ ID NO:7] 
                 
                     
                 
                                15                  20 
                 
                   Ser Trp Val Asn Cys Ser Xaa Xaa Xaa Asp Glu Ile Ile 
                 
                     
                 
                   25                  30                  35 
                 
                   Xaa His Leu Lys Xaa Pro Pro Xaa Pro Xaa Leu Asp Xaa 
                 
                     
                 
                           40                  45                  50 
                 
                   Xaa Asn Leu Asn Xaa Glu Asp Xaa Asp Ile Leu Xaa Glu 
                 
                     
                 
                                   55                  60 
                 
                   Xaa Asn Leu Arg Xaa Xaa Asn Leu Xaa Xaa Phe Xaa Xaa 
                 
                     
                 
                       65                  70                  75 
                 
                   Ala Xaa Lys Xaa Leu Xaa Asn Ala Ser Xaa Ile Glu Xaa 
                 
                     
                 
                               80                  85 
                 
                   Ile Leu Xaa Asn Leu Xaa Pro Cys Xaa Pro Xaa Xaa Thr 
                 
                     
                 
                   90                  95                  100 
                 
                   Ala Xaa Pro Xaa Arg Xaa Pro Ile Xaa Ile Xaa Xaa Gly 
                 
                     
                 
                           105                 110                 115 
                 
                   Asp Trp Xaa Glu Phe Arg Xaa Lys Leu Xaa Phe Tyr Leu 
                 
                     
                 
                                   120                 125 
                 
                   Xaa Xaa Leu Glu Xaa Ala Gln Xaa Gln Gln Thr Thr Leu 
                 
                     
                 
                       130 
                 
                   Ser Leu Ala Ile Phe 
                 
                     
                 
                 
                 
               
                   wherein m is 0 or 1; Xaa at position 18 is Asn or Ile; Xaa 
                     
                 
                   at position 19 is Met, Ala or Ile; Xaa at position 20 is 
                 
                   Ile, Pro or Ile; Xaa at position 23 is Ile, Ala or Leu; Xaa 
                 
                   at position 25 is Thr or His; Xaa at position 29 is Gln, 
                 
                   Arg, Val or Ile; Xaa at position 32 is Leu, Ala, Asn or 
                 
                   Arg; Xaa at position 34 is Leu or Ser; Xaa at position 37 
                 
                   is Phe, Pro, or Ser; Xaa at position 38 is Asn or Ala; Xaa 
                 
                   at position 42 is Gly, Ala, Ser, Asp or Asn; Xaa at 
                 
                   position 45 is Gln, Val, or Met; Xaa at position 46 is Asp 
                 
                   or Ser; Xaa at position 49 is Met, Ile, Leu or Asp; Xaa at 
                 
                   position 50 is Glu or Asp; Xaa at position Si is Asn Arg or 
                 
                   Ser; Xaa at position 55 is Arg, Leu, or Thr; Xaa at 
                 
                   position 56 is Pro or Ser; Xaa at position 59 is Glu or 
                 
                   Leu; Xaa at position 60 is Ala or Ser; Xaa at position 62 
                 
                   is Asn, Val or Pro; Xaa at position 63 is Arg or His; Xaa 
                 
                   at position 65 is Val or Ser; Xaa at position 67 is Ser, 
                 
                   Asn, His or Gln; Xaa at position 69 is Gln or Glu; Xaa at 
                 
                   position 73 is Ala or Gly; Xaa at position 76 is Ser, Ala 
                 
                   or Pro; Xaa at position 79 is Lys, Arg or Ser; Xaa at 
                 
                   position 82 is Leu, Glu, Val or Trp; Xaa at position 85 is 
                 
                   Leu or Val; Xaa at position 87 is Leu, Ser, Tyr; Xaa at 
                 
                   position 88 is Ala or Trp; Xaa at position 91 is Ala or 
                 
                   Pro; Xaa at position 93 is Pro or Ser; Xaa at position 95 
                 
                   is His or Thr; Xaa at position 98 is His, Ile, or Thr; Xaa 
                 
                   at position 100 is Lys or Arg; Xaa at position 101 is Asp, 
                 
                   Ala or Met; Xaa at position 105 is Asn or Glu; Xaa at 
                 
                   position 109 is Arg, Glu or Leu; Xaa at position 112 is Thr 
                 
                   or Gln; Xaa at position 116 is Lys, Val, Trp or Ser; Xaa at 
                 
                   position 117 is Thr or Ser; Xaa at position 120 is Asn, 
                 
                   Gln, or His; Xaa at position 123 is Ala or Glu; with the 
                 
                   proviso that from four to forty-four of the amino acids 
                 
                   designated by Xaa are different from the corresponding 
                 
                   amino acids of native human interleukin-3. 
                 
                     
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         10 . The composition of  claim 9 , wherein said human interleukin-3 mutant polypeptide is of the Formula:  
       
         
           
                 
                 
                 
               
                     
                 
                                1               5                   10 
                     
                     
                 
                   (Met m —Ala n ) p —Asn Cys Ser Xaa Xaa Xaa Asp Glu Xaa Ile 
                   [SEQ ID NO:8] 
                 
                     
                 
                                   15                  20 
                 
                   Xaa His Leu Lys Xaa Pro Pro Xaa Pro Xaa Leu Asp Xaa 
                 
                     
                 
                       25                  30                  35 
                 
                   Xaa Asn Leu Asn Xaa Glu Asp Xaa Xaa Ile Leu Xaa Glu 
                 
                     
                 
                               40                  45 
                 
                   Xaa Asn Leu Arg Xaa Xaa Asn Leu Xaa Xaa Phe Xaa Xaa 
                 
                     
                 
                   50                  55                  60 
                 
                   Ala Xaa Lys Xaa Leu Xaa Asn Ala Ser Xaa Ile Glu Xaa 
                 
                     
                 
                           65                  70                  75 
                 
                   Ile Leu Xaa Asn Xaa Xaa Pro Cys Xaa Pro Xaa Ala Thr 
                 
                     
                 
                                   80                  85 
                 
                   Ala Xaa Pro Xaa Arg Xaa Pro Ile Xaa Ile Xaa Xaa Gly 
                 
                     
                 
                       90                  95                  100 
                 
                   Asp Trp Xaa Glu Phe Arg Xaa Lys Leu Xaa Phe Tyr Leu 
                 
                     
                 
                               105                 110 
                 
                   Xaa Xaa Leu Glu Xaa Ala Gln Xaa Gln Gln 
                 
                     
                 
                 
                 
               
                   wherein m is 0 or 1; n is 0 or 1; p is 0 or 1; Xaa at 
                     
                 
                   position 4 is Asn or Ile; Xaa at position 5 is Met, Ala or 
                 
                   Ile: Xaa at position 6 is Ile, Pro or Leu; Xaa at position 
                 
                   9 is Ile, Ala or Leu; Xaa at position 11 is Thr or His; Xaa 
                 
                   at position 15 is Gln, Arg, Val or Ile; Xaa at position 18 
                 
                   is Leu, Ala, Asn or Arg; Xaa at position 20 is Leu or Ser; 
                 
                   Xaa at position 23 is Phe, Pro, or Ser; Xaa at position 24 
                 
                   is Asn or Ala; Xaa at position 28 is Gly, Ala, Ser, Asp or 
                 
                   Asn; Xaa at position 31 is Gln, Val, or Met; Xaa at 
                 
                   position 32 is Asp or Ser; Xaa at position 35 is Met, Ile 
                 
                   or Asp; Xaa at position 36 is Glu or Asp; Xaa at position 
                 
                   37 is Asn, Arg or Ser; Xaa at position 41 is Arg, Leu, or 
                 
                   Thr; Xaa at position 42 is Pro or Ser; Xaa at position 45 
                 
                   is Glu or Leu; Xaa at position 46 is Ala or Ser; Xaa at 
                 
                   position 48 is Asn, Val or Pro; Xaa at position 49 is Arg 
                 
                   or His; Xaa at position 51 is Val or Ser; Xaa at position 
                 
                   53 is Ser, Asn, His or Gln; Xaa at position 55 is Gln or 
                 
                   Glu; Xaa at position 59 is Ala or Gly; Xaa at position 62 
                 
                   is Ser, Ala or Pro; Xaa at position 65 is Lys, Arg or Ser; 
                 
                   Xaa at position 67 is Leu, Glu, or Val; Xaa at position 68 
                 
                   is Leu, Glu, Val or Trp; Xaa at position 71 is Leu or Val; 
                 
                   Xaa at position 73 is Leu, Ser or Tyr; Xaa at position 74 
                 
                   is Ala or Trp; Xaa at position 77 is Ala or Pro; Xaa at 
                 
                   position 79 is Pro or Ser; Xaa at position 81 is His or 
                 
                   Thr; Xaa at position 84 is His, Ile, or Thr; Xaa at 
                 
                   position 86 is Lys or Arg; Xaa at position 87 is Asp, Ala 
                 
                   or Met; Xaa at position 91 is Asn or Glu; Xaa at position 
                 
                   95 is Arg, Glu, Leu; Xaa at position 98 Thr or Gln; Xaa at 
                 
                   position 102 is Lys, Val, Trp or Ser; Xaa at position 103 
                 
                   is Thr or Ser; Xaa at position 106 is Asn, Gln, or His; Xaa 
                 
                   at position 109 is Ala or Glu; with the proviso that from 
                 
                   four to forty-four of the amino acids designated by Xaa are 
                 
                   different from the corresponding amino acids of native 
                 
                   (15-125)human interleukin-3. 
                 
                     
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         11 . The composition of  claim 10 , wherein said human interleukin-3 mutant polypeptide is of the Formula:  
       
         
           
                 
                 
                 
               
                     
                 
                   Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:9] 
                     
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Ala 
                 
                     
                 
                   Glu Asp Val Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:10] 
                 
                     
                 
                   Lys Arg Pro Pro Asn Pro Leu Leu Asp Pro Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:11] 
                 
                     
                 
                   Lys Val Pro Pro Ala Pro Leu Leu Asp Ser Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:12] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:13] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:14] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Arg Asn Leu Arg Thr Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys His Leu Glu Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:15] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:16] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:17] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:18] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Ser 
                 
                     
                 
                   Leu Glu His Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:19] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:20] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:21] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Ser 
                 
                     
                 
                   Leu Glu His Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:22] 
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Ala 
                 
                     
                 
                   Glu Asp Val Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:23] 
                 
                     
                 
                   Lys Arg Pro Pro Asn Pro Leu Leu Asp Pro Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Arg Asn Leu Arg Thr Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys His Leu Glu Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:24] 
                 
                     
                 
                   Lys Val Pro Pro Ala Pro Leu Leu Asp Ser Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:25] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:26] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:27] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Ser 
                 
                     
                 
                   Leu Glu His Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:28] 
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Ala 
                 
                     
                 
                   Glu Asp Val Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:29] 
                 
                     
                 
                   Lys Arg Pro Pro Asn Pro Leu Leu Asp Pro Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Arg Asn Leu Arg Thr Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys His Leu Glu Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:30] 
                 
                     
                 
                   Lys Val Pro Pro Ala Pro Leu Leu Asp Ser Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:31] 
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Ala 
                 
                     
                 
                   Glu Asp Val Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:32] 
                 
                     
                 
                   Lys Arg Pro Pro Asn Pro Leu Leu Asp Pro Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Arg Asn Leu Arg Thr Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys His Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:33] 
                 
                     
                 
                   Lys Val Pro Pro Ala Pro Leu Leu Asp Ser Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:34] 
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Ala 
                 
                     
                 
                   Glu Asp Val Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:35] 
                 
                     
                 
                   Lys Val Pro Pro Ala Pro Leu Leu Asp Ser Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:36] 
                 
                     
                 
                   Lys Arg Pro Pro Asn Pro Leu Leu Asp Pro Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Arg Asn Leu Arg Thr Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys His Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Ser 
                 
                     
                 
                   Leu Glu His Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:37] 
                 
                     
                 
                   Lys Val Pro Pro Ala Pro Leu Leu Asp Ser Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Ser 
                 
                     
                 
                   Leu Glu His Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:38] 
                 
                     
                 
                   Lys Arg Pro Pro Asn Pro Leu Leu Asp Pro Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Arg Asn Leu Arg Thr Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys His Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:39] 
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Ala 
                 
                     
                 
                   Glu Asp Val Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Ser 
                 
                     
                 
                   Leu Glu His Ala Gln Glu Gln Gln. 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile 
                   [SEQ ID NO:40] 
                 
                     
                 
                   His His Leu Lys Arg Pro Pro Ala Pro Leu Leu Asp 
                 
                     
                 
                   Pro Asn Asn Leu Asn Ala Glu Asp Val Asp Ile Leu Met Asp Arg 
                 
                     
                 
                   Asn Leu Arg Leu Ser Asn Leu Glu Ser Phe Val Arg Ala Val Lys 
                 
                     
                 
                   Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ala Ile His His Leu 
                   [SEQ ID NO:41] 
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Ser Leu Asp Pro Asn Asn Leu Asn Asp 
                 
                     
                 
                   Glu Asp Met Ser Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:42] 
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Asp 
                 
                     
                 
                   Glu Asp Met Ser Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:43] 
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Ala 
                 
                     
                 
                   Glu Asp Val Asp Ile Leu Met Asp Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:44] 
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Asp 
                 
                     
                 
                   Glu Asp Val Ser Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:45] 
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Asp 
                 
                     
                 
                   Glu Asp Met Ser Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln 
                 
                     
                 
                   Met Ala Tyr Pro Glu Thr Asp Tyr Lys Asp Asp Asp Asp Lys Asn 
                   [SEQ ID NO:46] 
                 
                     
                 
                   Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu Lys Arg Pro 
                 
                     
                 
                   Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Ala Glu Asp Val 
                 
                     
                 
                   Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn Leu Glu Ser 
                 
                     
                 
                   Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser Gly Ile Glu 
                 
                     
                 
                   Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser Ala Thr Ala 
                 
                     
                 
                   Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly Asp Trp Gln 
                 
                     
                 
                   Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr Leu Glu Gln 
                 
                     
                 
                   Ala Gln Glu Gln Gln and 
                 
                     
                 
                   Met Ala Tyr Pro Glu Thr Asp Tyr Lys Asp Asp Asp Asp Lys Asn 
                   [SEQ ID NO:47] 
                 
                     
                 
                   Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu Lys Arg Pro 
                 
                     
                 
                   Pro Asn Pro Leu Leu Asp Pro Asn Asn Leu Asn Ser Glu Asp Met 
                 
                     
                 
                   Asp Ile Leu Met Glu Arg Asn Leu Arg Thr Pro Asn Leu Leu Ala 
                 
                     
                 
                   Phe Val Arg Ala Val Lys His Leu Glu Asn Ala Ser Gly Ile Glu 
                 
                     
                 
                   Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser Ala Thr Ala 
                 
                     
                 
                   Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly Asp Trp Gln 
                 
                     
                 
                   Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr Leu Glu Gln 
                 
                     
                 
                   Ala Gln Glu Gln Gln. 
                 
                     
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         12 . The composition of  claim 10 , wherein said human interleukin-3 mutant polypeptide is of the Formula:  
       
         
           
                 
                 
                 
               
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Leu Ile His His Leu 
                   [SEQ ID NO:48] 
                     
                 
                     
                 
                   Lys Ile Pro Pro Asn Pro Ser Leu Asp Ser Ala Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Val Ser Ile Leu Met Glu Arg Asn Leu Arg Thr Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys His Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln. 
                 
                     
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         13 . The composition of claim  1 - 12  wherein said CSF is selected from the group consisting of G-CSF, Meg-CSF and GM-CSF:  
     
     
         14 . A method of increasing multi-lineage hematopoietic cell production in a mammal in need thereof comprising administering a pharmaceutically effective amount of a human interleukin-3 mutant polypeptide of the Formula:  
       
         
           
                 
                 
                 
               
                     
                 
                   Ala Pro Met Thr Gln Thr Thr Ser Leu Lys Thr Ser Trp Val Asn 
                   [SEQ ID NO:15] 
                     
                 
                    1               5                   10                  15 
                 
                     
                 
                   Cys Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa 
                 
                                    20                  25                  30 
                 
                     
                 
                   Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Asn Xaa Xaa Xaa Xaa Xaa Xaa 
                 
                                    35                  40                  45 
                 
                     
                 
                   Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa 
                 
                                    50                  55                  60 
                 
                     
                 
                   Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa 
                 
                                    65                  70                  75 
                 
                     
                 
                   Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa 
                 
                                    80                  85                  90 
                 
                     
                 
                   Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa 
                 
                                    95                 100                 105 
                 
                     
                 
                   Xaa Phe Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa 
                 
                                   110                 115                 120 
                 
                     
                 
                   Xaa Xaa Xaa Gln Gln Thr Thr Leu Ser Leu Ala Ile Phe 
                 
                                   125                 130 
                 
                     
                 
                 
                 
               
                   wherein 
                     
                 
                   Xaa at position 17 is Ser, Lys, Gly, Asp, Met, Gln, or 
                 
                   Arg; 
                 
                   Xaa at position 18 is Asn, His, Leu, Ile, Phe, Arg, or 
                 
                   Gln; 
                 
                   Xaa at position 19 is Met, Phe, Ile, Arg, Giy, Ala, or 
                 
                   Cys; 
                 
                   Xaa at position 20 is Ile, Cys, Gln, Glu, Arg, Pro, or 
                 
                   Ala; 
                 
                   Xaa at position 21 is Asp, Phe, Lys, Arg, Ala, Gly, Glu, 
                 
                   Gln, Asn, Thr, Ser or Val; 
                 
                   Xaa at position 22 is Glu, Trp, Pro, Ser, Ala, His, Asp, 
                 
                   Asn, Gln, Leu, Val or Gly; 
                 
                   Xaa at position 23 is Ile, Val, Ala, Leu, Gly, Trp, Lys, 
                 
                   Phe, Leu, Ser, or Arg; 
                 
                   Xaa at position 24 is Ile, Gly, Val, Arg, Ser, Phe, or 
                 
                   Leu; 
                 
                   Xaa at position 25 is Thr, His, Gly, Gln, Arg, Pro, or 
                 
                   Ala; 
                 
                   Xaa at position 26 is His, Thr, Phe, Gly, Arg, Ala, or 
                 
                   Trp; 
                 
                   Xaa at position 27 is Leu, Gly, Arg, Thr, Ser, or Ala; 
                 
                   Xaa at position 28 is Lys, Arg, Leu, Gln, Gly, Pro, Val or 
                 
                   Trp; 
                 
                   Xaa at position 29 is Gln, Asn, Leu, Pro, Arg, or Val; 
                 
                   Xaa at position 30 is Pro, His, Thr, Gly, Asp, Gln, Ser, 
                 
                   Leu, or Lys; 
                 
                   Xaa at position 3i is Pro, Asp, Gly, Ala, Arg, Leu, or 
                 
                   Gln; 
                 
                   Xaa at position 32 is Leu, Val, Arg, Gln, Asn, Gly, Ala, 
                 
                   or Glu; 
                 
                   Xaa at position 33 is Pro, Leu, Gln, Ala, Thr, or Glu; 
                 
                   Xaa at position 34 is Leu, Val, Gly, Ser, Lys, Glu, Gln, 
                 
                   Thr, Arg, Ala, Phe, Ile or Met; 
                 
                   Xaa at position 35 is Leu, Ala, Gly, Asn, Pro, Gln, or 
                 
                   Val; 
                 
                   Xaa at position 36 is Asp, Leu, or Val; 
                 
                   Xaa at position 37 is Phe, Ser, Pro, Trp, or Ile; 
                 
                   Xaa at position 38 is Asn, or Ala; 
                 
                   Xaa at position 40 is Leu, Trp, or Arg; 
                 
                   Xaa at position 41 is Asn, Cys, Arg, Leu, His, Met, or 
                 
                   Pro; 
                 
                   Xaa at position 42 is Gly, Asp, Ser, Cys, Asn, Lys, Thr, 
                 
                   Leu, Val, Glu, Phe, Tyr, Ile, Met or Ala; 
                 
                   Xaa at position 43 is Glu, Asn, Tyr, Leu, Phe, Asp, Ala, 
                 
                   Cys,,Gln, Arg, Thr, Gly or Ser; 
                 
                   Xaa at position 44 is Asp, Ser, Leu, Arg, Lys, Thr, Met, 
                 
                   Trp, Glu, Asn, Gln, Ala or Pro; 
                 
                   Xaa at position 45 is Gln, Pro, Phe, Val, Met, Leu, Thr, 
                 
                   Lys, Trp, Asp, Asn, Arg, Ser, Ala, Ile, Glu or His; 
                 
                   Xaa at position 46 is Asp, Phe, Ser, Thr, Cys, Glu, Asn, 
                 
                   Gln, Lys, His, Ala, Tyr, Ile, Val or Gly; 
                 
                   Xaa at position 47 is Ile, Gly, Val, Ser, Arg, Pro, or 
                 
                   His; 
                 
                   Xaa at position 48 is Leu, Ser, Cys, Arg, Ile, His, Phe, 
                 
                   Glu, Lys, Thr, Ala, Met, Val or Asn; 
                 
                   Xaa at position 49 is Met, Arg, Ala, Gly, Pro, Asn, His, 
                 
                   or Asp; 
                 
                   Xaa at position 50 is Glu, Leu, Thr, Asp, Tyr, Lys, Asn, 
                 
                   Ser, Ala, Ile, Val, His, Phe, Met or Gln; 
                 
                   Xaa at position 51 is Asn, Arg, Met, Pro, Ser, Thr, or 
                 
                   His; 
                 
                   Xaa at position 52 is Asn, His, Arg, Leu, Gly, Ser, or 
                 
                   Thr; 
                 
                   Xaa at position 53 is Leu, Thr, Ala, Gly, Glu, Pro, Lys, 
                 
                   Ser, or Met; 
                 
                   Xaa at position 54 is Arg, Asp, Ile, Ser, Val, Thr, Gln, 
                 
                   Asn, Lys, His, Ala or Leu; 
                 
                   Xaa at position 55 is Arg, Thr, Val, Ser, Leu, or Gly; 
                 
                   Xaa at position 56 is Pro, Gly, Cys, Ser, Gln, Glu, Arg, 
                 
                   His, Thr, Ala, Tyr, Phe, Leu, Val or Lys; 
                 
                   Xaa at position 57 is Asn or Gly; 
                 
                   Xaa at position 58 is Leu, Ser, Asp, Arg, Gln, Val, or 
                 
                   Cys; 
                 
                   Xaa at position 59 is Glu Tyr, His, Leu, Pro, or Arg; 
                 
                   Xaa at position 60 is Ala, Ser, Pro, Tyr, Asn, or Thr; 
                 
                   Xaa at position 61 is Phe, Asn, Glu, Pro, Lys, Arg, or 
                 
                   Ser; 
                 
                   Xaa at position 62 is Asn His, Val, Arg, Pro, Thr, Asp, or 
                 
                   Ile; 
                 
                   Xaa at position 63 is Arg, Tyr, Trp, Lys, Ser, His, Pro, 
                 
                   or Val; 
                 
                   Xaa at position 64 is Ala, Asn, Pro, Ser, or Lys; 
                 
                   Xaa at position 65 is Val, Thr, Pro, His, Leu, Phe, or 
                 
                   Ser; 
                 
                   Xaa at position 66 is Lys, Ile, Arg, Val, Asn, Glu, or 
                 
                   Ser; 
                 
                   Xaa at position 67 is Ser, Ala, Phe, Val, Gly, Asn, Ile, 
                 
                   Pro, or His; 
                 
                   Xaa at position 68 is Leu, Val, Trp, Ser, Ile, Phe, Thr, 
                 
                   or His; 
                 
                   Xaa at position 69 is Gln, Ala, Pro, Thr, Glu, Arg, Trp, 
                 
                   Gly, or Leu; 
                 
                   Xaa at position 70 is Asn, Leu, Val, Trp, Pro, or Ala; 
                 
                   Xaa at position 71 is Ala, Met, Leu, Pro, Arg, Glu, Thr, 
                 
                   Gln, Trp, or Asn; 
                 
                   Xaa at position 72 is Ser, Glu, Met, Ala, His, Asn, Arg, 
                 
                   or Asp; 
                 
                   Xaa at position 73 is Ala, Glu, Asp, Leu, Ser, Gly, Thr, 
                 
                   or Arg; 
                 
                   Xaa at position 74 is Ile, Met, Thr, Pro, Arg, Gly, Ala; 
                 
                   Xaa at position 75 is Glu, Lys, Gly, Asp, Pro, Trp, Arg, 
                 
                   Ser, Gln, or Leu; 
                 
                   Xaa at position 76 is Ser, Val, Ala, Asn, Trp, Glu, Pro, 
                 
                   Gly, or Asp; 
                 
                   Xaa at position 77 is Ile, Ser, Arg, Thr, or Leu; 
                 
                   Xaa at position 78 is Leu, Ala, Ser, Glu, Phe, Gly, or 
                 
                   Arg; 
                 
                   Xaa at position 79 is Lys, Thr, Asn, Met, Arg, Ile, Gly, 
                 
                   or Asp; 
                 
                   Xaa at position 80 is Asn, Trp, Val, Gly, Thr, Leu, Glu, 
                 
                   or Arg; 
                 
                   Xaa at position 81 is Leu, Gln, Gly, Ala, Trp, Arg, Val, 
                 
                   or Lys; 
                 
                   Xaa at position 82 is Leu, Gln, Lys, Trp, Arg, Asp, Glu, 
                 
                   Asn, His, Thr, Ser, Ala, Tyr, Phe, Ile, Met or Val; 
                 
                   Xaa at position 83 is Pro, Ala, Thr, Trp, Arg, or Met; 
                 
                   Xaa at position 84 is Cys, Glu, Gly, Arg, Met, or Val; 
                 
                   Xaa at position 85 is Leu, Asn, Val, or Gln; 
                 
                   Xaa at position 86 is Pro, Cys, Arg, Ala, or Lys; 
                 
                   Xaa at position 87 is Leu, Ser, Trp, or Gly; 
                 
                   Xaa at position 88 is Ala, Lys, Arg, Val, or Trp; 
                 
                   Xaa at position 89 is Thr, Asp, Cys, Leu, Val, Glu, His, 
                 
                   Asn, or Ser; 
                 
                   Xaa at position 90 is Ala, Pro, Ser, Thr, Gly, Asp, Ile, 
                 
                   or Met; 
                 
                   Xaa at position 91 is Ala, Pro, Ser, Thr, Phe, Leu, Asp, 
                 
                   or His; 
                 
                   Xaa at position 92 is Pro, Phe, Arg, Ser, Lys, His, Ala, 
                 
                   Gly, Ile or Leu; 
                 
                   Xaa at position 93 is Thr, Asp, Ser, Asn, Pro, Ala, Leu, 
                 
                   or Arg; 
                 
                   Xaa at position 94 is Arg, Ile, Ser, Glu, Leu, Val, Gln, 
                 
                   Lys, His, Ala, or Pro; 
                 
                   Xaa at position 95 is His, Gln, Pro, Arg, Val, Leu, Gly, 
                 
                   Thr, Asn, Lys, Ser, Ala, Trp, Phe, Ile, or Tyr; 
                 
                   Xaa at position 96 is Pro, Lys, Tyr, Gly, Ile, or Thr; 
                 
                   Xaa at position 97 is Ile, Val, Lys, Ala, or Asn; 
                 
                   Xaa at position 98 is His, Ile, Asn, Leu, Asp, Ala, Thr, 
                 
                   Glu, Gln, Ser, Phe, Met, Val, Lys, Arg, Tyr or Pro; 
                 
                   Xaa at position 99 is Ile, Leu, Arg, Asp, Val, Pro, Gln, 
                 
                   Gly, Ser, Phe, or His; 
                 
                   Xaa at position 100 is Lys, Tyr, Leu, His, Arg, Ile, Ser, 
                 
                   Gln, or Pro; 
                 
                   Xaa at position 101 is Asp, Pro, Met, Lys, His, Thr, Val, 
                 
                   Tyr, Glu, Asn, Ser, Ala, Gly, Ile, Leu, or Gln; 
                 
                   Xaa at position 102 is Gly, Leu, Glu, Lys, Ser, Tyr, or 
                 
                   Pro; 
                 
                   Xaa at position 103 is Asp, or Ser; 
                 
                   Xaa at position 104 is Trp, Val, Cys, Tyr, Thr, Met, Pro, 
                 
                   Leu, Gln, Lys, Ala, Phe, or Gly; 
                 
                   Xaa at position 105 is Asn, Pro, Ala, Phe, Ser, Trp, Gln, 
                 
                   Tyr, Leu, Lys, Ile, Asp, or His; 
                 
                   Xaa at position 106 is Glu, Ser, Ala, Lys, Thr, Ile, Gly, 
                 
                   or Pro; 
                 
                   Xaa at position 108 is Arg, Lys, Asp, Leu, Thr, Ile, Gln, 
                 
                   His, Ser, Ala or Pro; 
                 
                   Xaa at position 109 is Arg, Thr, Pro, Glu, Tyr, Leu, Ser, 
                 
                   or Gly; 
                 
                   Xaa at position 110 is Lys, Ala, Asn, Thr, Leu, Arg, Gln, 
                 
                   His, Glu, Ser, Ala, or Trp; 
                 
                   Xaa at position 111 is Leu, Ile, Arg, Asp, or Met; 
                 
                   Xaa at position 112 is Thr, Val, Gln, Tyr, Glu, His, Ser, 
                 
                   or Phe; 
                 
                   Xaa at position 113 is Phe, Ser, Cys, His, Gly, Trp, Tyr, 
                 
                   Asp, Lys, Leu, Ile, Val or Asn; 
                 
                   Xaa at position 114 is Tyr, Cys, His, Ser, Trp, Arg, or 
                 
                   Leu; 
                 
                   Xaa at position 115 is Leu, Asn, Val, Pro, Arg, Ala, His, 
                 
                   Thr, Trp, or Met; 
                 
                   Xaa at position 116 is Lys, Leu, Pro, Thr, Met, Asp, Val, 
                 
                   Glu, Arg, Trp, Ser, Asn, His, Ala, Tyr, Phe, Gln, or 
                 
                   Ile; 
                 
                   Xaa at position 117 is Thr, Ser, Asn, Ile, Trp, Lys, or 
                 
                   Pro; 
                 
                   Xaa at position 118 is Leu, Ser, Pro, Ala, Glu, Cys, Asp, 
                 
                   or Tyr; 
                 
                   Xaa at position 119 is Glu, Ser, Lys, Pro, Leu, Thr, Tyr, 
                 
                   or Arg; 
                 
                   Xaa at position 120 is Asn, Ala, Pro, Leu, His, Val, or 
                 
                   Gln; 
                 
                   Xaa at position 121 is Ala, Ser, Ile, Asn, Pro, Lys, Asp, 
                 
                   or Gly; 
                 
                   Xaa at position 122 is Gln, Ser, Met, Trp, Arg, Phe, Pro, 
                 
                   His, Ile, Tyr, or Cys; 
                 
                   Xaa at position 123 is Ala, Met, Glu, His, Ser, Pro, Tyr, 
                 
                   or Leu; 
                 
                     
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
       and which can additionally have Met- preceding the amino acid in position 1; and wherein from 1 to 14 amino acids can be deleted from the N-terminus and/or from 1 to 15 amino acids can be deleted from the C-terminus; and wherein from 4 to 44 of the amino acids designated by Xaa are different from the corresponding amino acids of native (1-133)human interleukin-3: and 
 a colony stimulating factor selected from the group consisting of GM-CSF, CSF-1, G-CSF, Meg-CSF (more recently referred to as c-mpl ligand), M-CSF, erythropoietin (EPO), IL-1, IL-4, IL-2, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, IL-11, IL-12, IL-13, LIF, flt2/flk2, human growth hormone, B-cell growth factor, B-cell differentiation factor, eosinophil differentiation factor and stem cell factor (SCF).  
 
     
     
         15 . A method of increasing multi-lineage hematopoietic cell production in a mammal in need thereof comprising administering a pharmaceutically effective amount of human interleukin-3 mutant polypeptide of the Formula:  
       
         
           
                 
                 
                 
               
                     
                 
                   Ala Pro Met Thr Gln Thr Thr Ser Leu Lys Thr Ser Trp Val Asn 
                   [SEQ ID NO:2] 
                     
                 
                    1               5                   10                 15 
                 
                     
                 
                   Cys Xaa Xaa Xaa Ile Xaa Glu Xaa Xaa Xaa Xaa Leu Lys Xaa Xaa 
                 
                                   20                  25                 30 
                 
                     
                 
                   Xaa Xaa Xaa Xaa Xaa Asp Xaa Xaa Asn Leu Asn Xaa Glu Xaa Xaa 
                 
                                   35                  40                 45 
                 
                     
                 
                   Xaa Ile Leu Met Xaa Xaa Asn Leu Xaa Xaa Xaa Asn Leu Glu Xaa 
                 
                                   50                  55                 60 
                 
                     
                 
                   Phe Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Asn Xaa Xaa Xaa Ile Glu 
                 
                                   65                  70                 75 
                 
                     
                 
                   Xaa Xaa Leu Xaa Xaa Leu Xaa Xaa Cys Xaa Pro Xaa Xaa Thr Ala 
                 
                                   80                  85                 90 
                 
                     
                 
                   Xaa Pro Xaa Arg Xaa Xaa Xaa Xaa Xaa Xaa Xaa Gly Asp Xaa Xaa 
                 
                                   95                 100                 105 
                 
                     
                 
                   Xaa Phe Xaa Xaa Lys Leu Xaa Phe Xaa Xaa Xaa Xaa Leu Glu Xaa 
                 
                                  110                 115                 120 
                 
                     
                 
                   Xaa Xaa Xaa Gln Gln Thr Thr Leu Ser Leu Ala Ile Phe 
                 
                                  125                 130 
                 
                     
                 
                   wherein 
                 
                   Xaa at position 17 is Ser, Gly, Asp, Met, or Gln; 
                 
                   Xaa at position 18 is Asn, His, or Ile; 
                 
                   Xaa at position 19 is Met or Ile; 
                 
                   Xaa at position 21 is Asp or Glu; 
                 
                   Xaa at position 23 is Ile, Ala, Leu, or Gly; 
                 
                   Xaa at position 24 is Tie, Val, or Leu; 
                 
                   Xaa at position 25 is Thr, His, Gln, or Ala; 
                 
                   Xaa at position 26 is His or Ala; 
                 
                   Xaa at position 29 is Gln, Asn, or Val; 
                 
                   Xaa at position 30 is Pro, Gly, or Gln; 
                 
                   Xaa at position 31 is Pro, Asp, Gly, or Gln; 
                 
                   Xaa at position 32 is Leu, Arg, Gln, Asn, Gly, Ala, or 
                 
                   Glu; 
                 
                   Xaa at position 33 is Pro or Glu; 
                 
                   Xaa at position 34 is Leu, Val, Gly, Ser, Lys, Ala, Arg, 
                 
                   Gln, Glu, Ile, Phe, Thr or Met; 
                 
                   Xaa at position 35 is Leu, Ala, Asn, Pro, Gln, or Val; 
                 
                   Xaa at position 37 is Phe, Ser, Pro, or Trp; 
                 
                   Xaa at position 38 is Asn or Ala; 
                 
                   Xaa at position 42 is Gly, Asp, Ser, Cys, Ala, Asn, Ile, 
                 
                   Leu, Met, Tyr or Arg; 
                 
                   Xaa at position 44 is Asp or Glu; 
                 
                   Xaa at position 45 is Gln, Val, Met, Leu, Thr, Ala, Asn, 
                 
                   Glu, Ser or Lys; 
                 
                   Xaa at position 46 is Asp, Phe, Ser, Thr, Ala, Asn Gln, 
                 
                   Glu, His, Ile, Lys, Tyr, Val or Cys; 
                 
                   Xaa at position 50 is Glu, Ala, Asn, Ser or Asp; 
                 
                   Xaa at position 51 is Asn, Arg, Met, Pro, Ser, Thr, or 
                 
                   His; 
                 
                   Xaa at position 54 is Arg or Ala; 
                 
                   Xaa at position 55 is Arg, Thr, Val, Leu, or Gly; 
                 
                   Xaa at position 56 is Pro, Gly, Ser, Gln, Ala, Arg, Asn, 
                 
                   Glu, Leu, Thr, Val or Lys; 
                 
                   Xaa at position 60 is Ala or Ser; 
                 
                   Xaa at position 62 is Asn, Pro, Thr, or Ile; 
                 
                   Xaa at position 63 is Arg or Lys; 
                 
                   Xaa at position 64 is Ala or Asn; 
                 
                   Xaa at position 65 is Val or Thr; 
                 
                   Xaa at position 66 is Lys or Arg; 
                 
                   Xaa at position 67 is Ser, Phe, or His; 
                 
                   Xaa at position 68 is Leu, Ile, Phe, or His; 
                 
                   Xaa at position 69 is Gln, Ala, Pro, Thr, Glu, Arg, or 
                 
                   Gly; 
                 
                   Xaa at position 71 is Ala, Pro, or Arg; 
                 
                   Xaa at position 72 is Ser, Glu, Arg, or Asp; 
                 
                   Xaa at position 73 is Ala or Leu; 
                 
                   Xaa at position 76 is Ser, Val, Ala, Asn, Glu, Pro, or 
                 
                   Gly; 
                 
                   Xaa at position 77 is Ile or Leu; 
                 
                   Xaa at position 79 is Lys, Thr, Gly, Asn, Met, Arg, Ile, 
                 
                   Gly, or Asp; 
                 
                   Xaa at position 80 is Asn, Gly, Glu, or Arg; 
                 
                   Xaa at position 82 is Leu, Gln, Trp, Arg, Asp, Ala, Asn, 
                 
                   Glu, His, Ile, Met, Phe, Ser, Thr, Tyr or Val; 
                 
                   Xaa at position 83 is Pro or Thr; 
                 
                   Xaa at position 85 is Leu or Val; 
                 
                   Xaa at position 87 is Leu or Ser; 
                 
                   Xaa at position 88 is Ala or Trp; 
                 
                   Xaa at position 91 is Ala or Pro; 
                 
                   Xaa at position 93 is Thr, Asp, Ser, Pro, Ala, Leu, or 
                 
                   Arg; 
                 
                   Xaa at position 95 is His, Pro, Arg, Val, Leu, Gly, Asn, 
                 
                   Phe, Ser or Thr; 
                 
                   Xaa at position 96 is Pro or Tyr; 
                 
                   Xaa at position 97 is Ile or Val; 
                 
                   Xaa at position 98 is His, Ile, Asn, Leu, Ala, Thr, Leu, 
                 
                   Arg, Gln, Leu, Lys, Met, Ser, Tyr, Val or Pro; 
                 
                   Xaa at position 99 is Ile, Leu, or Val; 
                 
                   Xaa at position 100 is Lys, Arg, Ile, Gln, Pro, or Ser; 
                 
                   Xaa at position 101 is Asp, Pro, Met, Lys, His, Thr, Pro, 
                 
                   Asn, Ile, Leu or Tyr; 
                 
                   Xaa at position 104 is Trp or Leu; 
                 
                   Xaa at position 105 is Asn, Pro, Ala, Ser, Trp, Gln, Tyr, 
                 
                   Leu, Lys, Ile, Asp, or His; 
                 
                   Xaa at position 106 is Glu or Gly; 
                 
                   Xaa at position 108 is Arg, Ala, or Ser; 
                 
                   Xaa at position 109 is Arg, Thr, Glu, Leu, or Ser; 
                 
                   Xaa at position 112 is Thr, Val, or Gln; 
                 
                   Xaa at position 114 is Tyr or Trp; 
                 
                   Xaa at position 115 is Leu or Ala; 
                 
                   Xaa at position 116 is Lys, Thr, Val, Trp, Ser, Ala, His, 
                 
                   Met, Phe, Tyr or Ile; 
                 
                   Xaa at position 117 is Thr or Ser; 
                 
                   Xaa at position 120 is Asn, Pro, Leu, His, Val, or Gln; 
                 
                   Xaa at position 121 is Ala, Ser, Ile, Asn, Pro, Asp, or 
                 
                   Gly; 
                 
                   Xaa at position 122 is Gln, Ser, Met, Trp, Arg, Phe, Pro, 
                 
                   His, Ile, Tyr, or Cys; 
                 
                   Xaa at position 123 is Ala, Met, Glu, His, Ser, Pro, Tyr, 
                 
                   or Leu; 
                 
                     
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
       and which can additionally have Met- preceding the amino acid in position 1; and wherein from 1 to 14 amino acids can be deleted from the N-terminus and/or from 1 to 15 amino acids can be deleted from the C-terminus; and wherein from 4 to 35 of the amino acids designated by Xaa are different from the corresponding amino acids of native (1-133) human interleukin-3; and 
 A pharmaceutically effective amount of a colony stimulating factor.  
 
     
     
         16 . The method of  claim 15 , wherein said human interleukin-3 mutant polypeptide is of the Formula:  
       
         
           
                 
                 
                 
               
                     
                 
                   Ala Pro Met Thr Gln Thr Thr Ser Leu Lys Thr Ser Trp Val Asn 
                   [SEQ ID NO:3] 
                     
                 
                    1               5                   10                 15 
                 
                     
                 
                   Cys Xaa Xaa Met Ile Asp Glu Xaa Ile Xaa Xaa Leu Lys Xaa Xaa 
                 
                                   20                  25                 30 
                 
                     
                 
                   Pro Xaa Pro Xaa Xaa Asp Phe Xaa Asn Leu Asn Xaa Glu Asp Xaa 
                 
                                   35                  40                 45 
                 
                     
                 
                   Xaa Ile Leu Met Xaa Xaa Asn Leu Arg Xaa Xaa Asn Leu Glu Ala 
                 
                                   50                  55                 60 
                 
                     
                 
                   Phe Xaa Arg Xaa Xaa Lys Xaa Xaa Xaa Asn Ala Ser Ala Ile Glu 
                 
                                   65                  70                 75 
                 
                     
                 
                   Xaa Xaa Leu Xaa Xaa Leu Xaa Pro Cys Leu Pro Xaa Xaa Thr Ala 
                 
                                   80                  85                 90 
                 
                     
                 
                   Xaa Pro Xaa Arg Xaa Pro Ile Xaa Xaa Xaa Xaa Gly Asp Trp Xaa 
                 
                                   95                 100                 105 
                 
                     
                 
                   Glu Phe Xaa Xaa Lys Leu Xaa Phe Tyr Leu Xaa Xaa Leu Glu Xaa 
                 
                                  110                 115                 120 
                 
                     
                 
                   Xaa Xaa Xaa Gln Gln Thr Thr Leu Ser Leu Ala Ile Phe 
                 
                                  125                 130 
                 
                     
                 
                   wherein 
                 
                   Xaa at position 17 is Ser, Gly, Asp, or Gln; 
                 
                   Xaa at position 18 is Asn, His, or Ile; 
                 
                   Xaa at position 23 is Ile, Ala, Leu, or Gly; 
                 
                   Xaa at position 25 is Thr, His, or Gln; 
                 
                   Xaa at position 26 is His or Ala; 
                 
                   Xaa at position 29 is Gln or Asn; 
                 
                   Xaa at position 30 is Pro or Gly; 
                 
                   Xaa at position 32 is Leu, Arg, Asn, or Ala; 
                 
                   Xaa at position 34 is Leu, Val, Ser, Ala, Arg, Gln, Glu, 
                 
                   Ile, Phe, Thr, or Met; 
                 
                   Xaa at position 35 is Leu, Ala, Asn, or Pro; 
                 
                   Xaa at position 38 is Asn or Ala; 
                 
                   Xaa at position 42 is Gly, Asp, Ser, Ala, Asn, Ile, Leu, 
                 
                   Met, Tyr or Arg; 
                 
                   Xaa at position 45 is Gln, Val, Met, Leu, Ala, Asn, Glu, 
                 
                   or Lys; 
                 
                   Xaa at position 46 is Asp, Phe, Ser, Gln, Glu, His, Val 
                 
                   or Thr; 
                 
                   Xaa at position 50 is Glu Asn, Ser or Asp; 
                 
                   Xaa at position 51 is Asn, Arg, Pro, Thr, or His; 
                 
                   Xaa at position 55 is Arg, Leu, or Gly; 
                 
                   Xaa at position 56 is Pro, Gly, Ser, Ala, Asn, Val, Leu or 
                 
                   Gln; 
                 
                   Xaa at position 62 is Asn, Pro, or Thr; 
                 
                   Xaa at position 64 is Ala or Asn; 
                 
                   Xaa at position 65 is Val or Thr; 
                 
                   Xaa at position 67 is Ser or Phe; 
                 
                   Xaa at position 68 is Leu or Phe; 
                 
                   Xaa at position 69 is Gln, Ala, Glu, or Arg; 
                 
                   Xaa at position 76 is Ser, Val, Asn, Pro, or Gly; 
                 
                   Xaa at position 77 is Ile or Leu; 
                 
                   Xaa at position 79 is Lys, Gly, Asn, Met, Arg, Ile, or 
                 
                   Gly; 
                 
                   Xaa at position 80 is Asn, Gly, Glu, or Arg; 
                 
                   Xaa at position 82 is Leu, Gln, Trp, Arg, Asp, Asn, Glu, 
                 
                   His, Met, Phe, Ser, Thr, Tyr or Val; 
                 
                   Xaa at position 87 is Leu or Ser; 
                 
                   Xaa at position 88 is Ala or Trp; 
                 
                   Xaa at position 91 is Ala or Pro; 
                 
                   Xaa at position 93 is Thr, Asp, or Ala; 
                 
                   Xaa at position 95 is His, Pro, Arg, Val, Gly, Asn, Ser or 
                 
                   Thr; 
                 
                   Xaa at position 98 is His, Ile, Asn, Ala, Thr, Gln, Glu, 
                 
                   Lys, Met, Ser, Tyr, Val or Leu; 
                 
                   Xaa at position 99 is Ile or Leu; 
                 
                   Xaa at position 100 is Lys or Arg; 
                 
                   Xaa at position 101 is Asp, Pro, Met, Lys, Thr, His, Pro, 
                 
                   Asn, Ile, Leu or Tyr; 
                 
                   Xaa at position 105 is Asn, Pro, Ser, Ile or Asp; 
                 
                   Xaa at position 108 is Arg, Ala, or Ser; 
                 
                   Xaa at position 109 is Arg, Thr, Glu, Leu, or Ser; 
                 
                   Xaa at position 112 is Thr or Gln; 
                 
                   Xaa at position 116 is Lys, Val, Trp, Ala, His, Phe, Tyr 
                 
                   or Ile; 
                 
                   Xaa at position 117 is Thr or Ser; 
                 
                   Xaa at position 120 is Asn, Pro, Leu, His, Val, or Gln; 
                 
                   Xaa at position 121 is Ala, Ser, Ile, Pro, or Asp; 
                 
                   Xaa at position 122 is Gln, Met, Trp, Phe, Pro, His, Ile, 
                 
                   or Tyr; 
                 
                   Xaa at position 123 is Ala, Met, Glu, Ser, or Leu; 
                 
                     
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
       and which can additionally have Met- preceding the amino acid in position 1; and wherein from 1 to 14 amino acids can be deleted from the N-terminus and/or from 1 to 15 amino acids can be deleted from the C-terminus; and wherein from 4 to 44 of the amino acids designated by Xaa are different from the corresponding amino acids of native (1-133) human interleukin-3; and 
 a colony stimulating factor selected from the group consisting of GM-CSF, CSF-1, G-CSF, Meg-CSF (more recently referred to as c-mpl ligand), M-CSF, erythropoietin (EPO), IL-1, IL-4, IL-2, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, IL-11, IL-12, IL-13, LIF, flt3/flk2, human growth hormone, B-cell growth factor, B-cell differentiation factor, eosinophil differentiation factor and stem cell factor (SCF).  
 
     
     
         17 . The method of  claim 16 , wherein said human interleukin-3 mutant polypeptide is of the Formula:  
       
         
           
                 
               
                     
                 
                   Xaa at position 42 is Gly, ASP, Ser, Ile, Leu, 
                 
                   Met, Tyr, or Ala; 
                 
                   Xaa at position 45 is Gln, Val, Met or Asn; 
                 
                   Xaa at position 46 is Asp, Ser, Gln, His or Val; 
                 
                   Xaa at position 50 is Glu or Asp; 
                 
                   Xaa at position 51 is Asn, Pro or Thr; 
                 
                   Xaa at position 62 is Asn or Pro; 
                 
                   Xaa at position 76 is Ser, or Pro; 
                 
                   Xaa at position 82 is Leu, Trp, Asp, Asn Glu, His, 
                 
                   Phe, Ser or Tyr; 
                 
                   Xaa at position 95 is His, Arg, Thr, Asn or Ser; 
                 
                   Xaa at position 98 is His, Ile, Leu, Ala, Gln, 
                 
                   Lys, Met, Ser, Tyr or Val; 
                 
                   Xaa at position 100 is Lys or Arg; 
                 
                   Xaa at position 101 is Asp, Pro, His, Asn, Ile or 
                 
                   Leu; 
                 
                   Xaa at position 105 is Asn, or Pro; 
                 
                   Xaa at position 108 is Arg, Ala, or Ser; 
                 
                   Xaa at position 116 is Lys, Val, Trp, Ala, His, 
                 
                   Phe, or Tyr; 
                 
                   Xaa at position 121 is Ala, or Ile; 
                 
                   Xaa at position 122 is Gln, or Ile; and 
                 
                   Xaa at position 123 is Ala, Met or Glu. 
                 
                     
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         18 . A method of increasing multi-lineage hematopoietic cell production in a mammal in need thereof comprising administering a pharmaceutically effective amount of a human interleukin-3 mutant polypeptide of the Formula:  
       
         
           
                 
                 
                 
               
                     
                 
                   Asn Cys Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa 
                   [SEQ ID NO:4] 
                     
                 
                    1               5                   10                 15 
                 
                     
                 
                   Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Asn Xaa Xaa Xaa Xaa Xaa 
                 
                                   20                  25                 30 
                 
                     
                 
                   Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa 
                 
                                   35                  40                 45 
                 
                     
                 
                   Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa 
                 
                                   50                  55                 60 
                 
                     
                 
                   Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa 
                 
                                   65                  70                 75 
                 
                     
                 
                   Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa 
                 
                                   80                  85                 90 
                 
                     
                 
                   Xaa Xaa Phe Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa 
                 
                                   95                 100                 105 
                 
                     
                 
                   Xaa Xaa Xaa Xaa Gln Gln 
                 
                                  110 
                 
                     
                 
                   wherein 
                 
                   Xaa at position 3 is Ser, Lys, Gly, Asp, Met, Gln, or Arg; 
                 
                   Xaa at position 4 is Asn, His, Leu, Ile, Phe, Arg, or Gln; 
                 
                   Xaa at position 5 is Met, Phe, Ile, Arg, Gly, Ala, or Cys; 
                 
                   Xaa at position 6 is Ile, Cys, Gln, Glu, Arg, Pro, or Ala; 
                 
                   Xaa at position 7 is Asp, Phe, Lys, Arg, Ala, Gly, Glu, 
                 
                   Gln, Asn, Thr, Ser or Val; 
                 
                   Xaa at position 8 is Glu, Trp, Pro, Ser, Ala, His, Asp, 
                 
                   Asn, Gln, Leu, Val, or Gly; 
                 
                   Xaa at position 9 is Ile, Val, Ala, Leu, Gly, Trp, Lys, 
                 
                   Phe, Leu, Ser, or Arg; 
                 
                   Xaa at position 10 is Ile, Gly, Val, Arg, Ser, Phe, or 
                 
                   Leu; 
                 
                   Xaa at position 11 is Thr, His, Gly, Gln, Arg, Pro, or 
                 
                   Ala; 
                 
                   Xaa at position 12 is His, Thr, Phe, Gly, Arg, Ala, or 
                 
                   Trp; 
                 
                   Xaa at position 13 is Leu, Gly, Arg, Thr, Ser, or Ala; 
                 
                   Xaa at position 14 is Lys, Arg, Leu, Gln, Gly, Pro, Val or 
                 
                   Trp; 
                 
                   Xaa at position 15 is Gln, Asn, Leu, Pro, Arg, or Val; 
                 
                   Xaa at position 16 is Pro, His, Thr, Gly, Asp, Gln, Ser, 
                 
                   Leu, or Lys; 
                 
                   Xaa at position 17 is Pro, Asp, Gly, Ala, Arg, Leu, or 
                 
                   Gln; 
                 
                   Xaa at position 18 is Leu, Val, Arg, Gln, Asn, Gly, Ala, 
                 
                   or Glu; 
                 
                   Xaa at position 19 is Pro, Leu, Gln, Ala, Thr, or Glu; 
                 
                   Xaa at position 20 is Leu, Val, Gly, Ser, Lys, Glu, Gln, 
                 
                   Thr, Arg, Ala, Phe, Ile or Met; 
                 
                   Xaa at position 21 is Leu, Ala, Gly, Asn, Pro, Gln, or 
                 
                   Val; 
                 
                   Xaa at position 22 is Asp, Leu, or Val; 
                 
                   Xaa at position 23 is Phe, Ser, Pro, Trp, or Ile; 
                 
                   Xaa at position 24 is Asn, or Ala; 
                 
                   Xaa at position 26 is Leu, Trp, or Arg; 
                 
                   Xaa at position 27 is Asn, Cys, Arg, Leu, His, Met, Pro; 
                 
                   Xaa at position 28 is Gly, Asp, Ser, Cys, Ala, Lys, Asn, 
                 
                   Thr, Leu, Val, Glu, Phe, Tyr, Ile or Met; 
                 
                   Xaa at position 29 is Glu, Asn, Tyr, Leu, Phe, Asp, Ala, 
                 
                   Cys, Gln, Arg, Thr, Gly or Ser; 
                 
                   Xaa at position 30 is Asp, Ser, Leu, Arg, Lys, Thr,Met, 
                 
                   Trp, Glu, Asn, Gln, Ala or Pro; 
                 
                   Xaa at position 31 is Gln, Pro, Phe, Val, Met, Leu, Thr, 
                 
                   Lys, Asp, Asn, Arg, Ser, Ala, Ile, Glu, His or Trp; 
                 
                   Xaa at position 32 is Asp, Phe, Ser, Thr, Cys, Glu, Asn, 
                 
                   Gln, Lys, His, Ala, Tyr, Ile, Val or Gly; 
                 
                   Xaa at position 33 is Ile, Gly, Val, Ser, Arg, Pro, or 
                 
                   His; 
                 
                   Xaa at position 34 is Leu, Ser, Cys, Arg, Ile, His, Phe, 
                 
                   Glu, Lys, Thr, Ala, Met, Val or Asn; 
                 
                   Xaa at position 35 is Met, Arg, Ala, Gly, Pro, Asn, His, 
                 
                   or Asp; 
                 
                   Xaa at position 36 is Glu, Leu, Thr, Asp, Tyr, Lys, Asn, 
                 
                   Ser, Ala, Ile, Val, His, Phe, Met or Gln; 
                 
                   Xaa at position 37 is Asn, Arg, Met, Pro, Ser, Thr, or 
                 
                   His; 
                 
                   Xaa at position 38 is Asn, His, Arg, Leu, Gly, Ser, or 
                 
                   Thr; 
                 
                   Xaa at position 39 is Leu, Thr, Ala, Gly, Glu, Pro, Lys, 
                 
                   Ser, Met, or; 
                 
                   Xaa at position 40 is Arg, Asp, Ile, Ser, Val, Thr, Gln, 
                 
                   Asn, Lys, His, Ala or Leu; 
                 
                   Xaa at position 41 is Arg, Thr, Val, Ser, Leu, or Gly; 
                 
                   Xaa at position 42 is Pro, Gly, Cys, Ser, Gln, Glu, Arg, 
                 
                   His, Thr, Ala, Tyr, Phe, Leu, Val or Lys; 
                 
                   Xaa at position 43 is Asn or Gly; 
                 
                   Xaa at position 44 is Leu, Ser, Asp, Arg, Gln, Val, or 
                 
                   Cys; 
                 
                   Xaa at position 45 is Glu Tyr, His, Leu, Pro, or Arg; 
                 
                   Xaa at position 46 is Ala, Ser, Pro, Tyr, Asn, or Thr; 
                 
                   Xaa at position 47 is Phe, Asn, Glu, Pro, Lys, Arg, or 
                 
                   Ser; 
                 
                   Xaa at position 48 is Asn, His, Val, Arg, Pro, Thr, Asp, 
                 
                   or Ile; 
                 
                   Xaa at position 49 is Arg, Tyr, Trp, Lys, Ser, His, Pro, 
                 
                   or Val; 
                 
                   Xaa at position 50 is Ala, Asn, Pro, Ser, or Lys; 
                 
                   Xaa at position 51 is Val, Thr, Pro, His, Leu, Phe, or 
                 
                   Ser; 
                 
                   Xaa at position 52 is Lys, Ile, Arg, Val, Asn, Glu, or 
                 
                   Ser; 
                 
                   Xaa at position 53 is Ser, Ala, Phe, Val, Gly, Asn, Ile, 
                 
                   Pro, or His; 
                 
                   Xaa at position 54 is Leu, Val, Trp, Ser, Ile, Phe, Thr, 
                 
                   or His; 
                 
                   Xaa at position 55 is Gln, Ala, Pro, Thr, Glu, Arg, Trp, 
                 
                   Gly, or Leu; 
                 
                   Xaa at position 56 is Asn, Leu, Val, Trp, Pro, or Ala; 
                 
                   Xaa at position 57 is Ala, Met, Leu, Pro, Arg, Glu, Thr, 
                 
                   Gln, Trp, or Asn; 
                 
                   Xaa at position 58 is Ser, Glu, Met, Ala, His, Asn, Arg, 
                 
                   or Asp; 
                 
                   Xaa at position 59 is Ala, Glu, Asp, Leu, Ser, Gly, Thr, 
                 
                   or Arg; 
                 
                   Xaa at position 60 is Ile, Met, Thr, Pro, Arg, Gly, Ala; 
                 
                   Xaa at position 61 is Glu, Lys, Gly, Asp, Pro, Trp, Arg, 
                 
                   Ser, Gln, or Leu; 
                 
                   Xaa at position 62 is Ser, Val, Ala, Asn, Trp, Glu, Pro, 
                 
                   Gly, or Asp; 
                 
                   Xaa at position 63 is Ile, Ser, Arg, Thr, or Leu; 
                 
                   Xaa at position 64 is Leu, Ala, Ser, Glu, Phe, Gly, or 
                 
                   Arg; 
                 
                   Xaa at position 65 is Lys, Thr, Gly, Asn, Met, Arg, Ile, 
                 
                   or Asp; 
                 
                   Xaa at position 66 is Asn, Trp, Val, Gly, Thr, Leu, Glu, 
                 
                   or Arg; 
                 
                   Xaa at position 67 is Leu, Gln, Gly, Ala, Trp, Arg, Val, 
                 
                   or Lys; 
                 
                   Xaa at position 68 is Leu, Gln, Lys, Trp, Arg, Asp, Glu, 
                 
                   Asn, His, Thr, Ser, Ala, Tyr, Phe, Ile, Met or Val; 
                 
                   Xaa at position 69 is Pro, Ala, Thr, Trp, Arg, or Met; 
                 
                   Xaa at position 70 is Cys, Glu, Gly, Arg, Met, or Val; 
                 
                   Xaa at position 71 is Leu, Asn, Val, or Gln; 
                 
                   Xaa at position 72 is Pro, Cys, Arg, Ala, or Lys; 
                 
                   Xaa at position 73 is Leu, Ser, Trp, or Gly; 
                 
                   Xaa at position 74 is Ala, Lys, Arg, Val, or Trp; 
                 
                   Xaa at position 75 is Thr, Asp, Cys, Leu, Val, Glu, His, 
                 
                   Asn, or Ser; 
                 
                   Xaa at position 76 is Ala, Pro, Ser, Thr, Gly, Asp, Ile, 
                 
                   or Met; 
                 
                   Xaa at position 77 is Ala, Pro, Ser, Thr, Phe, Leu, Asp, 
                 
                   or His; 
                 
                   Xaa at position 78 is Pro, Phe, Arg, Ser, Lys, His, Ala, 
                 
                   Gly, Ile or Leu; 
                 
                   Xaa at position 79 is Thr, Asp, Ser, Asn, Pro, Ala, Leu, 
                 
                   or Arg; 
                 
                   Xaa at position 80 is Arg, Ile, Ser, Glu, Leu, Val, Gln, 
                 
                   Lys, His, Ala or Pro; 
                 
                   Xaa at position 81 is His, Gln, Pro, Arg, Val, Leu, Gly, 
                 
                   Thr, Asn, Lys, Ser, Ala, Trp, Phe, Ile or Tyr; 
                 
                   Xaa at position 82 is Pro, Lys, Tyr, Gly, Ile, or Thr; 
                 
                   Xaa at position 83 is Ile, Val, Lys, Ala, or Asn; 
                 
                   Xaa at position 84 is His, Ile, Asn, Leu, Asp, Ala, Thr, 
                 
                   Glu, Gln, Ser, Phe, Met, Val, Lys, Arg, Tyr or Pro; 
                 
                   Xaa at position 85 is Ile, Leu, Arg, Asp, Val, Pro, Gln, 
                 
                   Gly, Ser, Phe, or His; 
                 
                   Xaa at position 86 is Lys, Tyr, Leu, His, Arg, Ile, Ser, 
                 
                   Gln, Pro; 
                 
                   Xaa at position 87 is Asp, Pro, Met, Lys, His, Thr, Val, 
                 
                   Tyr, Glu, Asn, Ser, Ala, Gly, Ile, Leu or Gln; 
                 
                   Xaa at position 88 is Gly, Leu, Glu, Lys, Ser, Tyr, or 
                 
                   Pro; 
                 
                   Xaa at position 89 is Asp, or Ser; 
                 
                   Xaa at position 90 is Trp, Val, Cys, Tyr, Thr, Met, Pro, 
                 
                   Leu, Gln, Lys, Ala, Phe, or Gly; 
                 
                   Xaa at position 91 is Asn, Pro, Ala, Phe, Ser, Trp, Gln, 
                 
                   Tyr, Leu, Lys, Ile, Asp, or His; 
                 
                   Xaa at position 92 is Glu, Ser, Ala, Lys, Thr, Ile, Gly, 
                 
                   or Pro; 
                 
                   Xaa at position 94 is Arg, Lys, Asp, Leu, Thr, Ile, Gln, 
                 
                   His, Ser, Ala, or Pro; 
                 
                   Xaa at position 95 is Arg, Thr, Pro, Glu, Tyr, Leu, Ser, 
                 
                   or Gly; 
                 
                   Xaa at position 96 is Lys, Asn, Thr, Leu, Gln, Arg, 
                 
                   His, Glu, Ser, Ala or Trp; 
                 
                   Xaa at position 97 is Leu, Ile, Arg, Asp, or Met; 
                 
                   Xaa at position 98 is Thr, Val, Gln, Tyr, Glu, His, Ser, 
                 
                   or Phe; 
                 
                   Xaa at position 99 is Phe, Ser, Cys, His, Gly, Trp, Tyr, 
                 
                   Asp, Lys, Leu, Ile, Val or Asn; 
                 
                   Xaa at position 100 is Tyr, Cys, His, Ser, Trp, Arg, or 
                 
                   Leu; 
                 
                   Xaa at position 101 is Leu, Asn, Val, Pro, Arg, Ala, His, 
                 
                   Thr, Trp, or Met; 
                 
                   Xaa at position 102 is Lys, Leu, Pro, Thr, Met, Asp, Val, 
                 
                   Glu, Arg, Trp, Ser, Asn, His, Ala, Tyr, Phe, Gln, or 
                 
                   Ile; 
                 
                   Xaa at position 103 is Thr, Ser, Asn, Ile, Trp, Lys, or 
                 
                   Pro; 
                 
                   Xaa at position 104 is Leu, Ser, Pro, Ala, Glu, Cys, Asp, 
                 
                   or Tyr; 
                 
                   Xaa at position 105 is Glu, Ser, Lys, Pro, Leu, Thr, Tyr, 
                 
                   or Arg; 
                 
                   Xaa at position 106 is Asn, Ala, Pro, Leu, His, Val, or 
                 
                   Gln; 
                 
                   Xaa at position 107 is Ala, Ser, Ile, Asn, Pro, Lys, Asp, 
                 
                   or Gly; 
                 
                   Xaa at position 108 is Gln, Ser, Met, Trp, Arg, Phe, Pro, 
                 
                   His, Ile, Tyr, or Cys; 
                 
                   Xaa at position 109 is Ala, Met, Glu, His, Ser, Pro, Tyr, 
                 
                   or Leu; 
                 
                     
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
       and which can additionally have Met- or Met-Ala- preceding the amino acid in position 1; and wherein from 4 to 44 of the amino acids designated by Xaa are different from the corresponding native amino acids of (1-133) human interleukin-3; and 
 A pharmaceutically effective amount of a colony stimulating factor.  
 
     
     
         19 . The method of  claim 18 , wherein said human interleukin-3 mutant polypeptide is of the Formula:  
       
         
           
                 
                 
                 
               
                     
                 
                   Asn Cys Xaa Xaa Xaa Ile Xaa Glu Xaa Xaa Xaa Xaa Leu Lys Xaa 
                   [SEQ ID NO:5] 
                     
                 
                   1                5                   10                 15 
                 
                     
                 
                   Xaa Xaa Xaa Xaa Xaa Xaa Asp Xaa Xaa Asn Leu Asn Xaa Glu Xaa 
                 
                                   20                  25                 30 
                 
                     
                 
                   Xaa Xaa Ile Leu Met Xaa Xaa Asn Leu Xaa Xaa Xaa Asn Leu Glu 
                 
                                   35                  40                 45 
                 
                     
                 
                   Xaa Phe Xaa Xaa Xaa Xaa Xaa Xaa Xaa Xaa Asn Xaa Xaa Xaa Ile 
                 
                                   50                  55                 60 
                 
                     
                 
                   Glu Xaa Xaa Leu Xaa Xaa Leu Xaa Xaa Cys Xaa Pro Xaa Xaa Thr 
                 
                                   65                  70                 75 
                 
                     
                 
                   Ala Xaa Pro Xaa Arg Xaa Xaa Xaa Xaa Xaa Xaa Xaa Gly Asp Xaa 
                 
                                   80                  85                 90 
                 
                     
                 
                   Xaa Xaa Phe Xaa Xaa Lys Leu Xaa Phe Xaa Xaa Xaa Xaa Leu Glu 
                 
                                   95                 100                 105 
                 
                     
                 
                   Xaa Xaa Xaa Xaa Gln Gln 
                 
                                   110 
                 
                     
                 
                   wherein 
                 
                   Xaa at position 3 is Ser, Gly, Asp, Met, or Gln; 
                 
                   Xaa at position 4 is Asn, His, or Ile; 
                 
                   Xaa at position 5 is Met or Ile; 
                 
                   Xaa at position 7 is Asp or Glu; 
                 
                   Xaa at position 9 is Ile, Ala, Leu, or Gly; 
                 
                   Xaa at position 10 is Ile, Val, or Leu; 
                 
                   Xaa at position 11 is Thr, His, Gln, or Ala; 
                 
                   Xaa at position 12 is His or Ala; 
                 
                   Xaa at position 15 is Gln, Asn, or Val; 
                 
                   Xaa at position 16 is Pro, Gly, or Gln; 
                 
                   Xaa at position 17 is Pro, Asp, Gly, or Gln; 
                 
                   Xaa at position 18 is Leu, Arg, Gln, Asn, Gly, Ala, or 
                 
                   Glu; 
                 
                   Xaa at position 19 is Pro or Glu; 
                 
                   Xaa at position 20 is Leu, Val, Gly, Ser, Lys, Ala, Arg, 
                 
                   Gln, Glu, Ile, Phe, Thr or Met; 
                 
                   Xaa at position 21 is Leu, Ala, Asn, Pro, Gln, or Val; 
                 
                   Xaa at position 23 is Phe, Ser, Pro, or Trp; 
                 
                   Xaa at position 24 is Asn or Ala; 
                 
                   Xaa at position 28 is Gly, Asp, Ser, Cys, Ala, Asn, Ile, 
                 
                   Leu, Met Tyr or Arg; 
                 
                   Xaa at position 30 is Asp or Glu; 
                 
                   Xaa at position 31 is Gln, Val, Met, Leu, Thr, Ala, Asn, 
                 
                   Glu, Ser or Lys; 
                 
                   Xaa at position 32 is Asp, Phe, Ser, Thr, Ala, Asn, Gln, 
                 
                   Glu, His, Ile, Lys, Tyr, Val or Cys; 
                 
                   Xaa at position 36 is Glu, Ala, Asn, Ser or Asp; 
                 
                   Xaa at position 37 is Asn, Arg, Met, Pro, Ser, Thr, or 
                 
                   His; 
                 
                   Xaa at position 40 is Arg or Ala; 
                 
                   Xaa at position 41 is Arg, Thr, Val, Leu, or Gly; 
                 
                   Xaa at position 42 is Pro, Gly, Ser, Gln, Ala, Arg, Asn, 
                 
                   Glu, Leu, Thr, Val or Lys; 
                 
                   Xaa at position 46 is Ala or Ser; 
                 
                   Xaa at position 48 is Asn, Pro, Thr, or Ile; 
                 
                   Xaa at position 49 is Arg or Lys; 
                 
                   Xaa at position 50 is Ala or Asn; 
                 
                   Xaa at position 51 is Val or Thr; 
                 
                   Xaa at position 52 is Lys or Arg; 
                 
                   Xaa at position 53 is Ser, Phe, or His; 
                 
                   Xaa at position 54 is Leu, Ile, Phe, or His; 
                 
                   Xaa at position 55 is Gln, Ala, Pro, Thr, Glu, Arg, or 
                 
                   Gly; 
                 
                   Xaa at position 57 is Ala, Pro, or Arg; 
                 
                   Xaa at position 58 is Ser, Glu, Arg, or Asp; 
                 
                   Xaa at position 59 is Ala or Leu; 
                 
                   Xaa at position 62 is Ser, Val, Ala, Asn, Glu, Pro, or 
                 
                   Gly; 
                 
                   Xaa at position 63 is Ile or Leu; 
                 
                   Xaa at position 65 is Lys, Thr, Gly, Asn, Met, Arg, Ile, 
                 
                   Gly, or Asp; 
                 
                   Xaa at position 66 is Asn, Gly, Glu, or Arg; 
                 
                   Xaa at position 68 is Leu, Gln, Trp, Arg, Asp, Ala, Asn, 
                 
                   Glu, His, Ile, Met, Phe, Ser, Thr, Tyr or Val; 
                 
                   Xaa at position 69 is Pro or Thr; 
                 
                   Xaa at position 71 is Leu or Val; 
                 
                   Xaa at position 73 is Leu or Ser; 
                 
                   Xaa at position 74 is Ala or Trp; 
                 
                   Xaa at position 77 is Ala or Pro; 
                 
                   Xaa at position 79 is Thr, Asp, Ser, Pro, Ala, Leu, or 
                 
                   Arg; 
                 
                   Xaa at position 81 is His, Pro, Arg, Val, Leu, Gly, Asn, 
                 
                   Phe, Ser or Thr; 
                 
                   Xaa at position 82 is Pro or Tyr; 
                 
                   Xaa at position 83 is Ile or Val; 
                 
                   Xaa at position 84 is His, Ile, Asn, Leu, Ala, Thr, Leu, 
                 
                   Arg, Gln, Leu, Lys, Met, Ser, Tyr, Val or Pro; 
                 
                   Xaa at position 85 is Ile, Leu, or Val; 
                 
                   Xaa at position 86 is Lys, Arg, Ile, Gln, Pro, or Ser; 
                 
                   Xaa at position 87 is Asp, Pro, Met, Lys, His, Thr, Asn, 
                 
                   Ile, Leu or Tyr; 
                 
                   Xaa at position 90 is Trp or Leu; 
                 
                   Xaa at position 91 is Asn, Pro, Ala, Ser, Trp, Gln, Tyr, 
                 
                   Leu, Lys, Ile, Asp, or His; 
                 
                   Xaa at position 92 is Glu, or Gly; 
                 
                   Xaa at position 94 is Arg, Ala, or Ser; 
                 
                   Xaa at position 95 is Arg, Thr, Glu, Leu, or Ser; 
                 
                   Xaa at position 98 is Thr, Val, or Gln; 
                 
                   Xaa at position 100 is Tyr or Trp; 
                 
                   Xaa at position 101 is Leu or Ala; 
                 
                   Xaa at position 102 is Lys, Thr, Val, Trp, Ser, Ala, His, 
                 
                   Met, Phe, Tyr or Ile; 
                 
                   Xaa at position 103 is Thr or Ser; 
                 
                   Xaa at position 106 is Asn, Pro, Leu, His, Val, or Gln; 
                 
                   Xaa at position 107 is Ala, Ser, Ile, Asn, Pro, Asp, or 
                 
                   Gly; 
                 
                   Xaa at position 108 is Gln, Ser, Met, Trp, Arg, Phe, Pro, 
                 
                   His, Ile, Tyr, or Cys; 
                 
                   Xaa at position 109 is Ala, Met, Glu, His, Ser, Pro, Tyr, 
                 
                   or Leu; 
                 
                     
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
       which can additionally have Met- or Met-Ala- preceding the amino acid in position 1; and wherein from 4 to 35 of the amino acids designated by Xaa are different from the corresponding amino acids of native human interleukin-3.  
     
     
         20 . The method of  claim 19 , wherein said human interleukin-3 mutant polypeptide is of the Formula:  
       
         
           
                 
                 
                 
               
                     
                 
                   Asn Cys Xaa Xaa Met Ile Asp Glu Xaa Ile Xaa Xaa Leu Lys Xaa 
                   [SEQ ID NO:6] 
                     
                 
                   1                5                   10                 15 
                 
                     
                 
                   Xaa Pro Xaa Pro Xaa Xaa Asp Phe Xaa Asn Leu Asn Xaa Glu Asp 
                 
                                   20                  25                 30 
                 
                     
                 
                   Xaa Xaa Ile Leu Met Xaa Xaa Asn Leu Arg Xaa Xaa Asn Leu Glu 
                 
                                   35                  40                 45 
                 
                     
                 
                   Ala Phe Xaa Arg Xaa Xaa Lys Xaa Xaa Xaa Asn Ala Ser Ala Ile 
                 
                                   50                  55                 60 
                 
                     
                 
                   Glu Xaa Xaa Leu Xaa Xaa Leu Xaa Pro Cys Leu Pro Xaa Xaa Thr 
                 
                                   65                  70                 75 
                 
                     
                 
                   Ala Xaa Pro Xaa Arg Xaa Pro Ile Xaa Xaa Xaa Xaa Gly Asp Trp 
                 
                                   80                  85                 90 
                 
                     
                 
                   Xaa Glu Phe Xaa Xaa Lys Leu Xaa Phe Tyr Leu Xaa Xaa Leu Glu 
                 
                                   95                 100                 105 
                 
                     
                 
                   Xaa Xaa Xaa Xaa Gln Gln 
                 
                                   110 
                 
                     
                 
                   wherein 
                 
                   Xaa at position 3 is Ser, Gly, Asp, or Gln; 
                 
                   Xaa at position 4 is Asn, His, or Ile; 
                 
                   Xaa at position 9 is Ile, Ala, Leu, or Gly; 
                 
                   Xaa at position 11 is Thr, His, or Gln; 
                 
                   Xaa at position 12 is His or Ala; 
                 
                   Xaa at position 15 is Gln or Asn; 
                 
                   Xaa at position 16 is Pro or Gly; 
                 
                   Xaa at position 18 is Leu, Arg, Asn, or Ala; 
                 
                   Xaa at position 20 is Leu, Val, Ser, Ala, Arg, Gln, Glu, 
                 
                   Ile, Phe, Thr or Met; 
                 
                   Xaa at position 21 is Leu, Ala, Asn, or Pro; 
                 
                   Xaa at position 24 is Asn or Ala; 
                 
                   Xaa at position 28 is Gly, Asp, Ser, Ala, Asn, Ile, Leu, 
                 
                   Met, Tyr or Arg; 
                 
                   Xaa at position 31 is Gln, Val, Met, Leu, Ala, Asn, Glu or 
                 
                   Lys; 
                 
                   Xaa at position 32 is Asp, Phe, Ser, Ala, Gln, Glu, His, 
                 
                   Val or Thr; 
                 
                   Xaa at position 36 is Glu, Asn, Ser or Asp; 
                 
                   Xaa at position 37 is Asn, Arg, Pro, Thr, or His; 
                 
                   Xaa at position 41 is Arg, Leu, or Gly; 
                 
                   Xaa at position 42 is Pro, Gly, Ser, Ala, Asn, Val, Leu or 
                 
                   Gln; 
                 
                   Xaa at position 48 is Asn, Pro, or Thr; 
                 
                   Xaa at position 50 is Ala or Asn; 
                 
                   Xaa at position 51 is Val or Thr; 
                 
                   Xaa at position 53 is Ser or Phe; 
                 
                   Xaa at position 54 is Leu or Phe; 
                 
                   Xaa at position 55 is Gln, Ala, Glu, or Arg; 
                 
                   Xaa at position 62 is Ser, Val, Asn, Pro, or Gly; 
                 
                   Xaa at position 63 is Ile or Leu; 
                 
                   Xaa at position 65 is Lys, Asn, Met, Arg, Ile, or Gly; 
                 
                   Xaa at position 66 is Asn, Gly, Glu, or Arg; 
                 
                   Xaa at position 68 is Leu, Gln, Trp, Arg, Asp, Asn, Glu, 
                 
                   His, Met, Phe, Ser, Thr, Tyr or Val; 
                 
                   Xaa at position 73 is Leu or Ser; 
                 
                   Xaa at position 74 is Ala or Trp; 
                 
                   Xaa at position 77 is Ala or Pro; 
                 
                   Xaa at position 79 is Thr, Asp, or Ala; 
                 
                   Xaa at position 81 is His, Pro, Arg, Val, Gly, Asn, Ser or 
                 
                   Thr; 
                 
                   Xaa at position 84 is His, Ile, Asn, Ala, Thr, Arg, Gln, 
                 
                   Glu, Lys, Met, Ser, Tyr, Val or Leu; 
                 
                   Xaa at position 85 is Ile or Leu; 
                 
                   Xaa at position 86 is Lys or Arg; 
                 
                   Xaa at position 87 is Asp, Pro, Met, Lys, His, Pro, Asn, 
                 
                   Ile, Leu or Tyr; 
                 
                   Xaa at position 91 is Asn, Pro, Ser, Ile or Asp; 
                 
                   Xaa at position 94 is Arg, Ala, or Ser; 
                 
                   Xaa at position 95 is Arg, Thr, Glu, Leu, or Ser; 
                 
                   Xaa at position 98 is Thr or Gln; 
                 
                   Xaa at position 102 is Lys, Val, Trp, or Ile; 
                 
                   Xaa at position 103 is Thr, Ala, His, Phe, Tyr or Ser; 
                 
                   Xaa at position 106 is Asn, Pro, Leu, His, Val, or Gln; 
                 
                   Xaa at position 107 is Ala, Ser, Ile, Pro, or Asp; 
                 
                   Xaa at position 108 is Gln, Met, Trp, Phe, Pro, His, Ile, 
                 
                   or Tyr; 
                 
                   Xaa at position 109 is Ala, Met, Glu, Ser, or Leu; 
                 
                     
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
       and which can additionally have Met- or Met-Ala- preceding the amino acid in position 1; and wherein from 4 to 26 of the amino acids designated by Xaa are different from the corresponding amino acids of native (1-133) human interleukin-3.  
     
     
         21 . The method of  claim 20 , wherein said human interleukin-3 mutant polypeptide is of the Formula:  
       
         
           
                 
               
                     
                 
                   Xaa at position 17 is Ser, Lys, Asp, Met, Gln, or 
                 
                   Arg; 
                 
                   Xaa at position 18 is Asn, His, Leu, Ile, Phe, 
                 
                   Arg, or Gln; 
                 
                   Xaa at position 19 is Met, Arg, Gly, Ala, or Cys; 
                 
                   Xaa at position 20 is Ile, Cys, Gln, Glu, Arg, 
                 
                   Pro, or Ala; 
                 
                   Xaa at position 21 is Asp, Phe, Lys, Arg, Ala, 
                 
                   Gly, or Val; 
                 
                   Xaa at position 22 is Glu, Trp, Pro, Ser, Ala, 
                 
                   His, or Gly; 
                 
                   Xaa at position 23 is Ile, Ala, Gly, Trp, Lys, 
                 
                   Leu, Ser, or Arg; 
                 
                   Xaa at position 24 is Ile, Gly, Arg, or Ser; 
                 
                   Xaa at position 25 is Thr, His, Gly, Gln, Arg, 
                 
                   Pro, or Ala; 
                 
                   Xaa at position 26 is His, Thr, Phe, Gly, Ala, or 
                 
                   Trp; 
                 
                   Xaa at position 27 is Leu, Gly, Arg, Thr, Ser, or 
                 
                   Ala; 
                 
                   Xaa at position 28 is Lys, Leu, Gln, Gly, Pro, Val 
                 
                   or Trp; 
                 
                   Xaa at position 29 is Gln, Asn, Pro, Arg, or Val; 
                 
                   Xaa at position 30 is Pro, His, Thr, Gly, Asp, 
                 
                   Gln, Ser, Leu, or Lys; 
                 
                   Xaa at position 31 is Pro, Asp, Gly, Arg, Leu, or 
                 
                   Gln; 
                 
                   Xaa at position 32 is Leu, Arg, Gln, Asn, Gly, 
                 
                   Ala, or Glu; 
                 
                   Xaa at position 33 is Pro, Leu, Gln, Thr, or Glu; 
                 
                   Xaa at position 34 is Leu, Gly, Ser, or Lys; 
                 
                   Xaa at position 35 is Leu, Ala, Gly, Asn, Pro, or 
                 
                   Gln; 
                 
                   Xaa at position 36 is Asp, Leu, or Val; 
                 
                   Xaa at position 37 is Phe, Ser, or Pro; 
                 
                   Xaa at position 38 is Asn, or Ala; 
                 
                   Xaa at position 40 is Leu, Trp, or Arg; 
                 
                   Xaa at position 41 is Asn, Cys, Arg, Leu, His, 
                 
                   Met, Pro; 
                 
                   Xaa at position 42 is Gly, Asp, Ser, Cys, or Ala; 
                 
                   Xaa at position 42 is Glu, Asn, Tyr, Leu, Phe, 
                 
                   Asp, Ala, Cys, or Ser; 
                 
                   Xaa at position 44 is Asp, Ser, Leu, Arg, Lys, 
                 
                   Thr, Met, Trp, or Pro; 
                 
                   Xaa at position 45 is Gln, Pro, Phe, Val, Met, 
                 
                   Leu, Thr, Lys, or Trp; 
                 
                   Xaa at position 46 is Asp, Phe, Ser, Thr, Cys, or 
                 
                   Gly; 
                 
                   Xaa at position 47 is Ile, Gly, Ser, Arg, Pro, or 
                 
                   His; 
                 
                   Xaa at position 48 is Leu, Ser, Cys, Arg, His, 
                 
                   Phe, or Asn; 
                 
                   Xaa at position 49 is Met, Arg, Ala, Gly, Pro, 
                 
                   Asn, His, or Asp; 
                 
                   Xaa at position 50 is Glu, Leu, Thr, Asp, or Tyr; 
                 
                   Xaa at position 51 is Asn, Arg, Met, Pro, Ser, 
                 
                   Thr, or His; 
                 
                   Xaa at position 52 is Asn, His, Arg, Leu, Gly, 
                 
                   Ser, or Thr; 
                 
                   Xaa at position 53 is Leu, Thr, Ala, Gly, Glu, 
                 
                   Pro, Lys, Ser, or; 
                 
                   Xaa at position 54 is Arg, Asp, Ile, Ser, Val, 
                 
                   Thr, Gln, or Leu; 
                 
                   Xaa at position 55 is Arg, Thr, Val, Ser, Leu, or 
                 
                   Gly; 
                 
                   Xaa at position 56 is Pro, Gly, Cys, Ser, Gln, or 
                 
                   Lys; 
                 
                   Xaa at position 57 is Asn or Gly; 
                 
                   Xaa at position 58 is Leu, Ser, Asp, Arg, Gln, 
                 
                   Val, or Cys; 
                 
                   Xaa at position 59 is Glu Tyr, His, Leu, Pro, or 
                 
                   Arg; 
                 
                   Xaa at position 60 is Ala, Ser, Tyr, Asn, or Thr; 
                 
                   Xaa at position 61 is Phe, Asn, Glu, Pro, Lys, 
                 
                   Arg, or Ser; 
                 
                   Xaa at position 62 is Asn His, Val, Arg, Pro, Thr, 
                 
                   or Ile; 
                 
                   Xaa at position 63 is Arg, Tyr, Trp, Ser, Pro, or 
                 
                   Val; 
                 
                   Xaa at position 64 is Ala, Asn, Ser, or Lys; 
                 
                   Xaa at position 65 is Val, Thr, Pro, His, Leu, 
                 
                   Phe, or Ser; 
                 
                   Xaa at position 66 is Lys, Ile, Val, Asn, Glu, or 
                 
                   Ser; 
                 
                   Xaa at position 67 is Ser, Ala, Phe, Val, Gly, 
                 
                   Asn, Ile, Pro, or His; 
                 
                   Xaa at position 68 is Leu, Val, Trp, Ser, Thr, or 
                 
                   His; 
                 
                   Xaa at position 69 is Gln, Ala, Pro, Thr, Arg, 
                 
                   Trp, Gly, or Leu; 
                 
                   Xaa at position 70 is Asn, Leu, Val, Trp, Pro, or 
                 
                   Ala; 
                 
                   Xaa at position 71 is Ala, Met, Leu, Arg, Glu, 
                 
                   Thr, Gln, Trp, or Asn; 
                 
                   Xaa at position 72 is Ser, Glu, Met, Ala, His, 
                 
                   Asn, Arg, or Asp; 
                 
                   Xaa at position 73 is Ala, Glu, Asp, Leu, Ser, 
                 
                   Gly, Thr, or Arg; 
                 
                   Xaa at position 74 is Ile, Thr, Pro, Arg, Gly, 
                 
                   Ala; 
                 
                   Xaa at position 75 is Glu, Lys, Gly, Asp, Pro, 
                 
                   Trp, Arg, Ser, or Leu; 
                 
                   Xaa at position 76 is Ser, Val, Ala, Asn, Trp, 
                 
                   Glu, Pro, Gly, or Asp; 
                 
                   Xaa at position 77 is Ile, Ser, Arg, or Thr; 
                 
                   Xaa at position 78 is Leu, Ala, Ser, Glu, Gly, or 
                 
                   Arg; 
                 
                   Xaa at position 79 is Lys, Thr, Gly, Asn, Met, 
                 
                   Ile, or Asp; 
                 
                   Xaa at position 80 is Asn, Trp, Val, Gly, Thr, 
                 
                   Leu, or Arg; 
                 
                   Xaa at position 81 is Leu, Gln, Gly, Ala, Trp, 
                 
                   Arg, or Lys; 
                 
                   Xaa at position 82 is Leu, Gln, Lys, Trp, Arg, or 
                 
                   Asp; 
                 
                   Xaa at position 83 is Pro, Thr, Trp, Arg, or Met; 
                 
                   Xaa at position 84 is Cys, Glu, Gly, Arg, Met, or 
                 
                   Val; 
                 
                   Xaa at position 85 is Leu, Asn, or Gln; 
                 
                   Xaa at position 86 is Pro, Cys, Arg, Ala, or Lys; 
                 
                   Xaa at position 87 is Leu, Ser, Trp, or Gly; 
                 
                   Xaa at position 88 is Ala, Lys, Arg, Val, or Trp; 
                 
                   Xaa at position 89 is Thr, Asp, Cys, Leu, Val, 
                 
                   Glu, His, or Asn; 
                 
                   Xaa at position 90 is Ala, Ser, Asp, Ile, or Met; 
                 
                   Xaa at position 91 is Ala, Ser, Thr, Phe, Leu, 
                 
                   Asp, or His; 
                 
                   Xaa at position 92 is Pro, Phe, Arg, Ser, Lys, 
                 
                   His, or Leu; 
                 
                   Xaa at position 93 is Thr, Asp, Ser, Asn, Pro, 
                 
                   Ala, Leu, or Arg; 
                 
                   Xaa at position 94 is Arg, Ile, Ser, Gln, Leu, 
                 
                   Val, or Pro; 
                 
                   Xaa at position 95 is His, Gln, Pro, Val, Leu, Thr 
                 
                   or Tyr; 
                 
                   Xaa at position 96 is Pro, Lys, Tyr, Gly, Ile, or 
                 
                   Thr; 
                 
                   Xaa at position 97 is Ile, Lys, Ala, or Asn; 
                 
                   Xaa at position 98 is His, Ile, Asn, Leu, Asp, 
                 
                   Ala, Thr, or Pro; 
                 
                   Xaa at position 99 is Ile, Arg, Asp, Pro, Gln, 
                 
                   Gly, Phe, or His; 
                 
                   Xaa at position 100 is Lys, Tyr, Leu, His, Ile, 
                 
                   Ser, Gln, or Pro; 
                 
                   Xaa at position 101 is Asp, Pro, Met, Lys, His, 
                 
                   Thr, Val, Tyr, or Gln; 
                 
                   Xaa at position 102 is Gly, Leu, Gln, Lys, Ser, 
                 
                   Tyr, or Pro; 
                 
                   Xaa at position 103 is Asp, or Ser; 
                 
                   Xaa at position 104 is Trp, Val, Cys, Tyr, Thr, 
                 
                   Met, Pro, Leu, Gln, Lys, Ala, Phe, or Gly; 
                 
                   Xaa at position 105 is Asn, Pro, Ala, Phe, Ser, 
                 
                   Trp, Gln, Tyr, Leu, Lys, Ile, or His; 
                 
                   Xaa at position 106 is Gln, Ser, Ala, Lys, Thr, 
                 
                   Ile, Gly, or Pro; 
                 
                   Xaa at position 108 is Arg, Asp, Leu, Thr, Ile, or 
                 
                   Pro; 
                 
                   Xaa at position 109 is Arg, Thr, Pro, Gln, Tyr, 
                 
                   Leu, Ser, or Gly. 
                 
                     
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         22 . The method of  claim 19  wherein said human interleukin-3 mutant polypeptide is of the Formula:  
       
         
           
                 
                 
                 
               
                     
                 
                           1               5                  10 
                     
                     
                 
                   (Met)m-Ala Pro Met Thr Gln Thr Thr Ser Leu Lys Thr 
                   [SEQ ID NO:7] 
                 
                     
                 
                               15                  20 
                 
                   Ser Trp Val Asn Cys Ser Xaa Xaa Xaa Asp Glu Ile Ile 
                 
                     
                 
                   25                  30                  35 
                 
                   Xaa His Leu Lys Xaa Pro Pro Xaa Pro Xaa Leu Asp Xaa 
                 
                     
                 
                           40                  45                  50 
                 
                   Xaa Asn Leu Asn Xaa Glu Asp Xaa Asp Ile Leu Xaa Glu 
                 
                     
                 
                                   55                  60 
                 
                   Xaa Asn Leu Arg Xaa Xaa Asn Leu Xaa Xaa Phe Xaa Xaa 
                 
                     
                 
                       65                  70                  75 
                 
                   Ala Xaa Lys Xaa Leu Xaa Asn Ala Ser Xaa Ile Glu Xaa 
                 
                     
                 
                               80                  85 
                 
                   Ile Leu Xaa Asn Leu Xaa Pro Cys Xaa Pro Xaa Xaa Thr 
                 
                     
                 
                   90                  95                  100 
                 
                   Ala Xaa Pro Xaa Arg Xaa Pro Ile Xaa Ile Xaa Xaa Gly 
                 
                     
                 
                           105                 110                 115 
                 
                   Asp Trp Xaa Glu Phe Arg Xaa Lys Leu Xaa Phe Tyr Leu 
                 
                     
                 
                                   120                 125 
                 
                   Xaa Xaa Leu Glu Xaa Ala Gln Xaa Gln Gln Thr Thr Leu 
                 
                     
                 
                       130 
                 
                   Ser Leu Ala Ile Phe 
                 
                     
                 
                 
               
                   wherein m is 0 or 1; Xaa at position 18 is Asn or Ile; Xaa 
                 
                   at position 19 is Met, Ala or Ile; Xaa at position 20 is 
                 
                   Ile, Pro or Ile; Xaa at position 23 is lie, Ala or Leu; Xaa 
                 
                   at position 25 is Thr or His; Xaa at position 29 is Gln, 
                 
                   Arg, Val or Ile; Xaa at position 32 is Leu, Ala, Asn or 
                 
                   Arg; Xaa at position 34 is Leu or Ser; Xaa at position 37 
                 
                   is Phe, Pro, or Ser; Xaa at position 38 is Asn or Ala; Xaa 
                 
                   at position 42 is Gly, Ala, Ser, Asp or Asn; Xaa at 
                 
                   position 45 is Gln, Val, or Met; Xaa at position 46 is Asp 
                 
                   or Ser; Xaa at position 49 is Met, lie, Leu or Asp; Xaa at 
                 
                   position 50 is Glu or Asp; Xaa at position 51 is Asn Arg or 
                 
                   Ser; Xaa at position 55 is Arg, Leu, or Thr; Xaa at 
                 
                   position 56 is Pro or Ser; Xaa at position 59 is Glu or 
                 
                   Leu; Xaa at position 60 is Ala or Ser; Xaa at position 62 
                 
                   is Asn, Val or Pro; Xaa at position 63 is Arg or His; Xaa 
                 
                   at position 65 is Val or Ser; Xaa at position 67 is Ser, 
                 
                   Asn, His or Gln; Xaa at position 69 is Gln or Glu; Xaa at 
                 
                   position 73 is Ala or Gly; Xaa at position 76 is Ser, Ala 
                 
                   or Pro; Xaa at position 79 is Lys, Arg or Ser; Xaa at 
                 
                   position 82 is Leu, Glu, Val or Trp; Xaa at position 85 is 
                 
                   Leu or Val; Xaa at position 87 is Leu, Ser, Tyr; Xaa at 
                 
                   position 88 is Ala or Trp; Xaa at position 91 is Ala or 
                 
                   Pro; Xaa at position 93 is Pro or Ser; Xaa at position 95 
                 
                   is His or Thr; Xaa at position 98 is His, Ile, or Thr; Xaa 
                 
                   at position 100 is Lys or Arg; Xaa at position 101 is Asp, 
                 
                   Ala or Met; Xaa at position 105 is Asn or Glu; Xaa at 
                 
                   position 109 is Arg, Giu or Leu; Xaa at position 112 is Thr 
                 
                   or Gln; Xaa at position 116 is Lys, Val, Trp or Ser; Xaa at 
                 
                   position 117 is Thr or Ser; Xaa at position 120 is Asn, 
                 
                   Gln, or His; Xaa at position 123 is Ala or Glu; with the 
                 
                   proviso that from four to forty-four of the amino acids 
                 
                   designated by Xaa are different from the corresponding 
                 
                   amino acids of native human interleukin-3. 
                 
                     
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         23 . The method of  claim 21  wherein said human interleukin-3 mutant polypeptide is of the Formula:  
       
         
           
                 
                 
                 
               
                     
                 
                                1                5                    10 
                     
                     
                 
                   (Met m —Ala n ) p —Asn Cys Ser Xaa Xaa Xaa Asp Glu Xaa Ile 
                   [SEQ ID NO:8] 
                 
                     
                 
                                   15                  20 
                 
                   Xaa His Leu Lys Xaa Pro Pro Xaa Pro Xaa Leu Asp Xaa 
                 
                     
                 
                       25                  30                  35 
                 
                   Xaa Asn Leu Asn Xaa Glu Asp Xaa Xaa Ile Leu Xaa Glu 
                 
                     
                 
                               40                  45 
                 
                   Xaa Asn Leu Arg Xaa Xaa Asn Leu Xaa Xaa Phe Xaa Xaa 
                 
                     
                 
                   50                  55                  60 
                 
                   Ala Xaa Lys Xaa Leu Xaa Asn Ala Ser Xaa Ile Glu Xaa 
                 
                     
                 
                           65                  70                  75 
                 
                   Ile Leu Xaa Asn Xaa Xaa Pro Cys Xaa Pro Xaa Ala Thr 
                 
                     
                 
                                   80                  85 
                 
                   Ala Xaa Pro Xaa Arg Xaa Pro Ile Xaa Ile Xaa Xaa Gly 
                 
                     
                 
                       90                  95                  100 
                 
                   Asp Trp Xaa Glu Phe Arg Xaa Lys Leu Xaa Phe Tyr Leu 
                 
                     
                 
                               105                 110 
                 
                   Xaa Xaa Leu Glu Xaa Ala Gln Xaa Gln Gln 
                 
                     
                 
                 
                 
               
                   wherein m is 0 or 1; n is 0 or 1; p is 0 or 1; Xaa at 
                     
                 
                   position 4 is Asn or Ile; Xaa at position 5 is Met, Ala or 
                 
                   Ile: Xaa at position 6 is Ile, Pro or Leu; Xaa at position 
                 
                   9 is Ile, Ala or Leu; Xaa at position 11 is Thr or His; Xaa 
                 
                   at position 15 is Gln, Arg, Val or Ile; Xaa at position 18 
                 
                   is Leu, Ala, Asn or Arg; Xaa at position 20 is Leu or Ser; 
                 
                   Xaa at position 23 is Phe, Pro, or Ser; Xaa at position 24 
                 
                   is Asn or Ala; Xaa at position 28 is Gly, Ala, Ser, Asp or 
                 
                   Asn; Xaa at position 31 is Gln, Val, or Met; Xaa at 
                 
                   position 32 is Asp or Ser; Xaa at position 35 is Met, Ile 
                 
                   or Asp; Xaa at position 36 is Glu or Asp; Xaa at position 
                 
                   37 is Asn, Arg or Ser; Xaa at position 41 is Arg, Leu, or 
                 
                   Thr; Xaa at position 42 is Pro or Ser; Xaa at position 45 
                 
                   is Glu or Leu; Xaa at position 46 is Ala or Ser; Xaa at 
                 
                   position 48 is Asn, Val or Pro; Xaa at position 49 is Arg 
                 
                   or His; Xaa at position 51 is Val or Ser; Xaa at position 
                 
                   53 is Ser, Asn, His or Gln; Xaa at position 55 is Gln or 
                 
                   Glu; Xaa at position 59 is Ala or Gly; Xaa at position 62 
                 
                   is Ser, Ala or Pro; Xaa at position 65 is Lys, Arg or Ser; 
                 
                   Xaa at position 67 is Leu, Glu, or Val; Xaa at position 68 
                 
                   is Leu, Glu, Val or Trp; Xaa at position 71 is Leu or Val; 
                 
                   Xaa at position 73 is Leu, Ser or Tyr; Xaa at position 74 
                 
                   is Ala or Trp; Xaa at position 77 is Ala or Pro; Xaa at 
                 
                   position 79 is Pro or Ser; Xaa at position 81 is His or 
                 
                   Thr; Xaa at position 84 is His, Ile, or Thr; Xaa at 
                 
                   position 86 is Lys or Arg; Xaa at position 87 is Asp, Ala 
                 
                   or Met; Xaa at position 91 is Asn or Glu; Xaa at position 
                 
                   95 is Arg, Glu, Leu; Xaa at position 98 Thr or Gln; Xaa at 
                 
                   position 102 is Lys, Val, Trp or Ser; Xaa at position 103 
                 
                   is Thr or Ser; Xaa at position 106 is Asn, Gln, or His; Xaa 
                 
                   at position 109 is Ala or Glu; with the proviso that from 
                 
                   four to forty-four of the amino acids designated by Xaa are 
                 
                   different from the corresponding amino acids of native 
                 
                   (15-125)human interleukin-3. 
                 
                     
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         24 . The method of  claim 22  wherein said human interleukin-3 mutant polypeptide is of the Formula:  
       
         
           
                 
                 
                 
               
                     
                 
                   Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:9] 
                     
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Ala 
                 
                     
                 
                   Glu Asp Val Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:10] 
                 
                     
                 
                   Lys Arg Pro Pro Asn Pro Leu Leu Asp Pro Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:11] 
                 
                     
                 
                   Lys Val Pro Pro Ala Pro Leu Leu Asp Ser Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Ala 
                 
                     
                 
                   Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu Ala 
                 
                     
                 
                   Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly Asp 
                 
                     
                 
                   Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr Leu 
                 
                     
                 
                   Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:12] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:13] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:14] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Arg Asn Leu Arg Thr Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys His Leu Glu Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:15] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:16] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:17] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:18] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Ala 
                 
                     
                 
                   Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu Ala 
                 
                     
                 
                   Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly Asp 
                 
                     
                 
                   Trp Asn Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Ser Leu 
                 
                     
                 
                   Glu His Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:19] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:20] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:21] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Ser 
                 
                     
                 
                   Leu Glu His Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:22] 
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Ala 
                 
                     
                 
                   Glu Asp Val Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:23] 
                 
                     
                 
                   Lys Arg Pro Pro Asn Pro Leu Leu Asp Pro Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Arg Asn Leu Arg Thr Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys His Leu Glu Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:24] 
                 
                     
                 
                   Lys Val Pro Pro Ala Pro Leu Leu Asp Ser Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:25] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:26] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Asn Met Ile Asp Glu Ile Ile Thr His Leu 
                   [SEQ ID NO:27] 
                 
                     
                 
                   Lys Gln Pro Pro Leu Pro Leu Leu Asp Phe Asn Asn Leu Asn Gly 
                 
                     
                 
                   Glu Asp Gln Asp Ile Leu Met Glu Asn Asn Leu Arg Arg Pro Asn 
                 
                     
                 
                   Leu Glu Ala Phe Asn Arg Ala Val Lys Ser Leu Gln Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Ser 
                 
                     
                 
                   Leu Glu His Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:28] 
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Ala 
                 
                     
                 
                   Glu Asp Val Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:29] 
                 
                     
                 
                   Lys Arg Pro Pro Asn Pro Leu Leu Asp Pro Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Arg Asn Leu Arg Thr Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys His Leu Glu Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:30] 
                 
                     
                 
                   Lys Val Pro Pro Ala Pro Leu Leu Asp Ser Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Ala Ile Glu Ser Ile Leu Lys Asn Leu Leu Pro Cys Leu Pro Leu 
                 
                     
                 
                   Ala Thr Ala Ala Pro Thr Arg His Pro Ile His Ile Lys Asp Gly 
                 
                     
                 
                   Asp Trp Asn Glu Phe Arg Arg Lys Leu Thr Phe Tyr Leu Lys Thr 
                 
                     
                 
                   Leu Glu Asn Ala Gln Ala Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:31] 
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Ala 
                 
                     
                 
                   Glu Asp Val Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:32] 
                 
                     
                 
                   Lys Arg Pro Pro Asn Pro Leu Leu Asp Pro Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Arg Asn Leu Arg Thr Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys His Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:33] 
                 
                     
                 
                   Lys Val Pro Pro Ala Pro Leu Leu Asp Ser Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:34] 
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Ala 
                 
                     
                 
                   Glu Asp Val Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:35] 
                 
                     
                 
                   Lys Val Pro Pro Ala Pro Leu Leu Asp Ser Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:36] 
                 
                     
                 
                   Lys Arg Pro Pro Asn Pro Leu Leu Asp Pro Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Arg Asn Leu Arg Thr Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys His Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Ser 
                 
                     
                 
                   Leu Glu His Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:37] 
                 
                     
                 
                   Lys Val Pro Pro Ala Pro Leu Leu Asp Ser Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Ser 
                 
                     
                 
                   Leu Glu His Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:38] 
                 
                     
                 
                   Lys Arg Pro Pro Asn Pro Leu Leu Asp Pro Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Arg Asn Leu Arg Thr Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys His Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln; 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:39] 
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Ala 
                 
                     
                 
                   Glu Asp Val Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Val Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Thr Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Ser 
                 
                     
                 
                   Leu Glu His Ala Gln Glu Gln Gln. 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:40] 
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Ala 
                 
                     
                 
                   Glu Asp Val Asp Ile Leu Met Asp Arg Asn Leu Arg Leu Ser Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ala Ile His His Leu 
                   [SEQ ID NO:41] 
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Ser Leu Asp Pro Asn Asn Leu Asn Asp 
                 
                     
                 
                   Glu Asp Met Ser Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:42] 
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Asp 
                 
                     
                 
                   Glu Asp Met Ser Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:43] 
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Ala 
                 
                     
                 
                   Glu Asp Val Asp Ile Leu Met Asp Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:44] 
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Asp 
                 
                     
                 
                   Glu Asp Val Ser Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:45] 
                 
                     
                 
                   Lys Arg Pro Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Asp 
                 
                     
                 
                   Glu Asp Met Ser Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn 
                 
                     
                 
                   Leu Glu Ser Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln 
                 
                     
                 
                   Met Ala Tyr Pro Glu Thr Asp Tyr Lys Asp Asp Asp Asp Lys Asn 
                   [SEQ ID NO:46] 
                 
                     
                 
                   Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu Lys Arg Pro 
                 
                     
                 
                   Pro Ala Pro Leu Leu Asp Pro Asn Asn Leu Asn Ala Glu Asp Val 
                 
                     
                 
                   Asp Ile Leu Met Glu Arg Asn Leu Arg Leu Pro Asn Leu Glu Ser 
                 
                     
                 
                   Phe Val Arg Ala Val Lys Asn Leu Glu Asn Ala Ser Gly Ile Glu 
                 
                     
                 
                   Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser Ala Thr Ala 
                 
                     
                 
                   Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly Asp Trp Gln 
                 
                     
                 
                   Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr Leu Glu Gln 
                 
                     
                 
                   Ala Gln Glu Gln Gln 
                 
                     
                 
                   Met Ala Tyr Pro Glu Thr Asp Tyr Lys Asp Asp Asp Asp Lys Asn 
                   [SEQ ID NO:47] 
                 
                     
                 
                   Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu Lys Arg Pro 
                 
                     
                 
                   Pro Asn Pro Leu Leu Asp Pro Asn Asn Leu Asn Ser Glu Asp Met 
                 
                     
                 
                   Asp Ile Leu Met Glu Arg Asn Leu Arg Thr Pro Asn Leu Leu Ala 
                 
                     
                 
                   Phe Val Arg Ala Val Lys His Leu Glu Asn Ala Ser Gly Ile Glu 
                 
                     
                 
                   Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser Ala Thr Ala 
                 
                     
                 
                   Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly Asp Trp Gln 
                 
                     
                 
                   Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr Leu Glu Gln 
                 
                     
                 
                   Ala Gln Glu Gln Gln and 
                 
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Leu Ile His His Leu 
                   [SEQ ID NO:48] 
                 
                     
                 
                   Lys Ile Pro Pro Asn Pro Ser Leu Asp Ser Ala Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Val Ser Ile Leu Met Glu Arg Asn Leu Arg Thr Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys His Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln. 
                 
                     
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         25 . The method of  claim 23  wherein said human interleukin-3 mutant polypeptide is of the Formula:  
       
         
           
                 
                 
                 
               
                     
                 
                   Met Ala Asn Cys Ser Ile Met Ile Asp Glu Ile Ile His His Leu 
                   [SEQ ID NO:32] 
                     
                 
                     
                 
                   Lys Arg Pro Pro Asn Pro Leu Leu Asp Pro Asn Asn Leu Asn Ser 
                 
                     
                 
                   Glu Asp Met Asp Ile Leu Met Glu Arg Asn Leu Arg Thr Pro Asn 
                 
                     
                 
                   Leu Leu Ala Phe Val Arg Ala Val Lys His Leu Glu Asn Ala Ser 
                 
                     
                 
                   Gly Ile Glu Ala Ile Leu Arg Asn Leu Gln Pro Cys Leu Pro Ser 
                 
                     
                 
                   Ala Thr Ala Ala Pro Ser Arg His Pro Ile Ile Ile Lys Ala Gly 
                 
                     
                 
                   Asp Trp Gln Glu Phe Arg Glu Lys Leu Thr Phe Tyr Leu Val Thr 
                 
                     
                 
                   Leu Glu Gln Ala Gln Glu Gln Gln. 
                 
                     
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         26 . The method as recited in  claim 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24  or  25  wherein said colony stimulating factor is selected from the group consisting of GM-CSF, G-CSF, and Meg-CSF.

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