US2021301325A1PendingUtilityA1
Polynucleotides for the amplification and detection of chlamydia trachomatis
Est. expiryMay 9, 2038(~11.8 yrs left)· nominal 20-yr term from priority
C12Q 1/689C12Q 2600/166C12Q 2600/16C12Q 2600/112C12Q 2521/107C12Q 2600/118C12Q 2563/107C12Q 1/682C12Q 2531/101C12Q 1/6844C12Q 2565/101
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Claims
Abstract
The invention provides methods and compositions for the detection of Chlamydia trachomatis in a test sample. Its presence or absence in the sample is determined by nucleic acid based testing methods using primers and/or probes and or molecular beacons that bind to the 23S ribosomal genes or gene transcripts.
Claims
exact text as granted — not AI-modifiedWe claim:
1 . A composition comprising a set of polynucleotides selected from the group consisting of Set-20, Set-24, Set-47, Set-51, Set-74 and Set-78.
2 . The composition of claim 1 , further comprising a probe.
3 . The composition of claim 2 , wherein the probe is a labeled polynucleotide.
4 . The composition of claim 3 , wherein the labeled polynucleotide comprises a sequence selected from the group consisting of nucleotides 5-34 of SEQ ID NO: 97, nucleotides 5-31 of SEQ ID NO: 98, nucleotides 3-31 of SEQ ID NO: 99, nucleotides 5-30 of SEQ ID NO: 100, nucleotides 6-29 of SEQ ID NO: 101, nucleotides 5-26 of SEQ ID NO: 103, nucleotides 4-27 of SEQ ID NO: 104, nucleotides 7-30 of SEQ ID NO: 105, nucleotides 5-27 of SEQ ID NO: 106, nucleotides 6-29 of SEQ ID NO: 107, nucleotides 6-29 of SEQ ID NO: 108, nucleotides 6-29 of SEQ ID NO: 109, nucleotides 6-30 of SEQ ID NO: 110, nucleotides 8-31 of SEQ ID NO: 111, nucleotides 6-29 of SEQ ID NO: 112, nucleotides 8-31 of SEQ ID NO: 113, nucleotides 5-29 of SEQ ID NO: 114, nucleotides 5-29 of SEQ ID NO: 115, nucleotides 4-28 of SEQ ID NO: 116, nucleotides 5-30 of SEQ ID NO: 117, nucleotides 8-28 of SEQ ID NO: 118, nucleotides 8-30 of SEQ ID NO: 119, nucleotides 8-29 of SEQ ID NO: 120, nucleotides 4-33 of SEQ ID NO: 121, nucleotides 7-34 of SEQ ID NO: 122, nucleotides 9-34 of SEQ ID NO: 123, nucleotides 8-34 of SEQ ID NO: 124, nucleotides 6-28 of SEQ ID NO: 125, nucleotides 7-28 of SEQ ID NO: 126, nucleotides 3-27 of SEQ ID NO: 127, nucleotides 7-32 of SEQ ID NO: 128, nucleotides 4-27 of SEQ ID NO: 129, and nucleotides 6-27 of SEQ ID NO: 130.
5 . The composition of claim 2 , wherein the probe is a molecular beacon comprising a fluorophore, a quencher, and a polynucleotide.
6 . The composition of claim 5 , wherein the molecular beacon comprises a sequence selected from the group consisting of nucleotides 5-34 of SEQ ID NO: 97, nucleotides 5-31 of SEQ ID NO: 98, nucleotides 3-31 of SEQ ID NO: 99, nucleotides 5-30 of SEQ ID NO: 100, nucleotides 6-29 of SEQ ID NO: 101, nucleotides 5-26 of SEQ ID NO: 103, nucleotides 4-27 of SEQ ID NO: 104, nucleotides 7-30 of SEQ ID NO: 105, nucleotides 5-27 of SEQ ID NO: 106, nucleotides 6-29 of SEQ ID NO: 107, nucleotides 6-29 of SEQ ID NO: 108, nucleotides 6-29 of SEQ ID NO: 109, nucleotides 6-30 of SEQ ID NO: 110, nucleotides 8-31 of SEQ ID NO: 111, nucleotides 6-29 of SEQ ID NO: 112, nucleotides 8-31 of SEQ ID NO: 113, nucleotides 5-29 of SEQ ID NO: 114, nucleotides 5-29 of SEQ ID NO: 115, nucleotides 4-28 of SEQ ID NO: 116, nucleotides 5-30 of SEQ ID NO: 117, nucleotides 8-28 of SEQ ID NO: 118, nucleotides 8-30 of SEQ ID NO: 119, nucleotides 8-29 of SEQ ID NO: 120, nucleotides 4-33 of SEQ ID NO: 121, nucleotides 7-34 of SEQ ID NO: 122, nucleotides 9-34 of SEQ ID NO: 123, nucleotides 8-34 of SEQ ID NO: 124, nucleotides 6-28 of SEQ ID NO: 125, nucleotides 7-28 of SEQ ID NO: 126, nucleotides 3-27 of SEQ ID NO: 127, nucleotides 7-32 of SEQ ID NO: 128, nucleotides 4-27 of SEQ ID NO: 129, and nucleotides 6-27 of SEQ ID NO: 130.
7 . The composition of claim 6 , wherein the molecular beacon comprises a sequence selected from the group consisting of SEQ ID NOs: 97-101 and 103-130.
8 . The composition of claim 7 , wherein the polynucleotide sequence consists of SEQ ID NO: 115.
9 . A molecular beacon comprising a fluorophore, a quencher, and a polynucleotide, wherein the polynucleotide comprises a sequence selected from the group consisting of nucleotides 5-34 of SEQ ID NO: 97, nucleotides 5-31 of SEQ ID NO: 98, nucleotides 3-31 of SEQ ID NO: 99, nucleotides 5-30 of SEQ ID NO: 100, nucleotides 6-29 of SEQ ID NO: 101, nucleotides 5-26 of SEQ ID NO: 103, nucleotides 4-27 of SEQ ID NO: 104, nucleotides 7-30 of SEQ ID NO: 105, nucleotides 5-27 of SEQ ID NO: 106, nucleotides 6-29 of SEQ ID NO: 107, nucleotides 6-29 of SEQ ID NO: 108, nucleotides 6-29 of SEQ ID NO: 109, nucleotides 6-30 of SEQ ID NO: 110, nucleotides 8-31 of SEQ ID NO: 111, nucleotides 6-29 of SEQ ID NO: 112, nucleotides 8-31 of SEQ ID NO: 113, nucleotides 5-29 of SEQ ID NO: 114, nucleotides 5-29 of SEQ ID NO: 115, nucleotides 4-28 of SEQ ID NO: 116, nucleotides 5-30 of SEQ ID NO: 117, nucleotides 8-28 of SEQ ID NO: 118, nucleotides 8-30 of SEQ ID NO: 119, nucleotides 8-29 of SEQ ID NO: 120, nucleotides 4-33 of SEQ ID NO: 121, nucleotides 7-34 of SEQ ID NO: 122, nucleotides 9-34 of SEQ ID NO: 123, nucleotides 8-34 of SEQ ID NO: 124, nucleotides 6-28 of SEQ ID NO: 125, nucleotides 7-28 of SEQ ID NO: 126, nucleotides 3-27 of SEQ ID NO: 127, nucleotides 7-32 of SEQ ID NO: 128, nucleotides 4-27 of SEQ ID NO: 129, and nucleotides 6-27 of SEQ ID NO: 130.
10 . The molecular beacon of claim 9 , wherein the polynucleotide comprises a sequence selected from the group consisting of SEQ ID NOs: 97-101 and 103-130.
11 . The composition of claim 10 , wherein the polynucleotide sequence consists of SEQ ID NO: 115.
12 . The molecular beacon of claim 9 , wherein the fluorophore is FAM and the quencher is BHQ1.
13 . A method of detecting Chlamydia trachomatis in a test sample, the method comprising:
(a) extracting nucleic acid from the test sample; (b) amplifying a target sequence by reacting the nucleic acid extracted in step (a) with a reaction mixture comprising a strand displacement DNA polymerase and a sequence-specific primer set, wherein said sequence-specific primer set is selected from the group consisting of Set-20, Set-24, Set-47, Set-51, Set-74, and Set-78; and (c) detecting the presence or absence of an amplified product of step (b); wherein the presence of said amplification product is indicative of the presence of Chlamydia trachomatis in the test sample.
14 . The method of claim 13 , wherein the amplification in step (b) of the target sequence is performed at between about 60° C. and about 67° C. for less than fifteen minutes.
15 . The method of claim 14 , wherein the amplification step is performed for less than ten minutes.
16 . The method of claim 13 , wherein the reaction mixture further comprises a reverse transcriptase.
17 . The method of claim 13 , wherein detecting the presence or absence of the amplification product comprises hybridizing the amplified product with a probe comprising a polynucleotide attached to a label.
18 . The method of claim 17 , wherein the labeled polynucleotide comprises a sequence selected from the group consisting of nucleotides 5-34 of SEQ ID NO: 97, nucleotides 5-31 of SEQ ID NO: 98, nucleotides 3-31 of SEQ ID NO: 99, nucleotides 5-30 of SEQ ID NO: 100, nucleotides 6-29 of SEQ ID NO: 101, nucleotides 5-26 of SEQ ID NO: 103, nucleotides 4-27 of SEQ ID NO: 104, nucleotides 7-30 of SEQ ID NO: 105, nucleotides 5-27 of SEQ ID NO: 106, nucleotides 6-29 of SEQ ID NO: 107, nucleotides 6-29 of SEQ ID NO: 108, nucleotides 6-29 of SEQ ID NO: 109, nucleotides 6-30 of SEQ ID NO: 110, nucleotides 8-31 of SEQ ID NO: 111, nucleotides 6-29 of SEQ ID NO: 112, nucleotides 8-31 of SEQ ID NO: 113, nucleotides 5-29 of SEQ ID NO: 114, nucleotides 5-29 of SEQ ID NO: 115, nucleotides 4-28 of SEQ ID NO: 116, nucleotides 5-30 of SEQ ID NO: 117, nucleotides 8-28 of SEQ ID NO: 118, nucleotides 8-30 of SEQ ID NO: 119, nucleotides 8-29 of SEQ ID NO: 120, nucleotides 4-33 of SEQ ID NO: 121, nucleotides 7-34 of SEQ ID NO: 122, nucleotides 9-34 of SEQ ID NO: 123, nucleotides 8-34 of SEQ ID NO: 124, nucleotides 6-28 of SEQ ID NO: 125, nucleotides 7-28 of SEQ ID NO: 126, nucleotides 3-27 of SEQ ID NO: 127, nucleotides 7-32 of SEQ ID NO: 128, nucleotides 4-27 of SEQ ID NO: 129, and nucleotides 6-27 of SEQ ID NO: 130.
19 . The method of claim 18 , wherein the labeled polynucleotide comprises a sequence selected from the group consisting of SEQ ID NOs: 97-101 and 103-130.
20 . The method of claim 19 , wherein the sequence of the labeled polynucleotide is SEQ ID NO: 115.
21 . The method of claim 13 , wherein Chlamydia trachomatis is present in the test sample at a concentration of ≤100 IFU/mL.
22 . The method of claim 21 , wherein Chlamydia trachomatis is present in the test sample at a concentration of ≤5 IFU/ml and the amplification step is performed for less than 15 minutes.
23 . The method of claim 21 , wherein Chlamydia trachomatis is present in the test sample at a concentration of ≤10 IFU/ml and the amplification step is performed for less than six minutes.
24 . A kit comprising a composition according to claim 1 .
25 . The kit of claim 24 , further comprising a strand displacement polymerase.
26 . The kit of claim 24 , further comprising a molecular beacon comprising a fluorophore, a quencher, and a polynucleotide, wherein the polynucleotide consists of a sequence selected from the group consisting of SEQ ID NOs: 97-101 and 103-130.
27 . The kit of claim 26 , wherein the polynucleotide consists of SEQ ID NO: 115.
28 . A method of detecting Chlamydia trachomatis in a test sample, the method comprising:
(a) extracting nucleic acid from the test sample; (b) amplifying a target sequence by reacting the nucleic acid extracted in step (a) for less than ten minutes with a reaction mixture comprising a strand displacement DNA polymerase and a sequence-specific LAMP primer set selected from the group consisting of Set-20 and Set-24; and (c) detecting the presence or absence of an amplified product of step (b); wherein the presence of said amplification product is indicative of the presence of Chlamydia trachomatis in the test sample.
29 . The method of claim 28 , wherein detecting the presence or absence of the amplification product comprises hybridizing the amplified product with a molecular beacon comprising a polynucleotide sequence selected from the group consisting of nucleotides 5-34 of SEQ ID NO: 97, nucleotides 5-31 of SEQ ID NO: 98, nucleotides 3-31 of SEQ ID NO: 99, nucleotides 5-30 of SEQ ID NO: 100, nucleotides 6-29 of SEQ ID NO: 101, nucleotides 5-26 of SEQ ID NO: 103, nucleotides 4-27 of SEQ ID NO: 104, nucleotides 7-30 of SEQ ID NO: 105, nucleotides 5-27 of SEQ ID NO: 106, nucleotides 6-29 of SEQ ID NO: 107, nucleotides 6-29 of SEQ ID NO: 108, nucleotides 6-29 of SEQ ID NO: 109, nucleotides 6-30 of SEQ ID NO: 110, nucleotides 8-31 of SEQ ID NO: 111, nucleotides 6-29 of SEQ ID NO: 112, nucleotides 8-31 of SEQ ID NO: 113, nucleotides 5-29 of SEQ ID NO: 114, nucleotides 5-29 of SEQ ID NO: 115, nucleotides 4-28 of SEQ ID NO: 116, nucleotides 5-30 of SEQ ID NO: 117, nucleotides 8-28 of SEQ ID NO: 118, nucleotides 8-30 of SEQ ID NO: 119, nucleotides 8-29 of SEQ ID NO: 120, nucleotides 4-33 of SEQ ID NO: 121, nucleotides 7-34 of SEQ ID NO: 122, nucleotides 9-34 of SEQ ID NO: 123, nucleotides 8-34 of SEQ ID NO: 124, nucleotides 6-28 of SEQ ID NO: 125, nucleotides 7-28 of SEQ ID NO: 126, nucleotides 3-27 of SEQ ID NO: 127, nucleotides 7-32 of SEQ ID NO: 128, nucleotides 4-27 of SEQ ID NO: 129, and nucleotides 6-27 of SEQ ID NO: 130.
30 . The method of claim 28 , wherein detecting the presence or absence of the amplification product comprises hybridizing the amplified product with a molecular beacon comprising a polynucleotide sequence selected from the group consisting of SEQ ID NOs: 97-101 and 103-130.
31 . A composition comprising a set of polynucleotides selected from the group consisting of Set-1 through Set-81.
32 . The composition of claim 31 , further comprising a probe.
33 . The composition of claim 32 , wherein the probe comprises a label.
34 . The composition of claim 33 , wherein the probe is a labeled polynucleotide.
35 . The composition of claim 34 , wherein the labeled polynucleotide comprises a sequence selected from the group consisting of nucleotides 5-34 of SEQ ID NO: 97, nucleotides 5-31 of SEQ ID NO: 98, nucleotides 3-31 of SEQ ID NO: 99, nucleotides 5-30 of SEQ ID NO: 100, nucleotides 6-29 of SEQ ID NO: 101, nucleotides 6-30 of SEQ ID NO: 102, nucleotides 5-26 of SEQ ID NO: 103, nucleotides 4-27 of SEQ ID NO: 104, nucleotides 7-30 of SEQ ID NO: 105, nucleotides 5-27 of SEQ ID NO: 106, nucleotides 6-29 of SEQ ID NO: 107, nucleotides 6-29 of SEQ ID NO: 108, nucleotides 6-29 of SEQ ID NO: 109, nucleotides 6-30 of SEQ ID NO: 110, nucleotides 8-31 of SEQ ID NO: 111, nucleotides 6-29 of SEQ ID NO: 112, nucleotides 8-31 of SEQ ID NO: 113, nucleotides 5-29 of SEQ ID NO: 114, nucleotides 5-29 of SEQ ID NO: 115, nucleotides 4-28 of SEQ ID NO: 116, and nucleotides 5-30 of SEQ ID NO: 117, nucleotides 8-28 of SEQ ID NO: 118, nucleotides 8-30 of SEQ ID NO: 119, nucleotides 8-29 of SEQ ID NO: 120, nucleotides 4-33 of SEQ ID NO: 121, nucleotides 7-34 of SEQ ID NO: 122, nucleotides 9-34 of SEQ ID NO: 123, nucleotides 8-34 of SEQ ID NO: 124, nucleotides 6-28 of SEQ ID NO: 125, nucleotides 7-28 of SEQ ID NO: 126, nucleotides 3-27 of SEQ ID NO: 127, nucleotides 7-32 of SEQ ID NO: 128, nucleotides 4-27 of SEQ ID NO: 129, nucleotides 6-27 of SEQ ID NO: 130, and nucleotides 8-29 of SEQ ID NO: 131.
36 . The composition of claim 34 , wherein the labeled polynucleotide comprises a sequence selected from the group consisting of SEQ ID NOs: 97 through 131.
37 . The composition of claim 34 , wherein the label is a fluorophore.
38 . The composition of claim 37 , wherein the fluorophore is covalently attached to a terminus of the polynucleotide.
39 . The composition of claim 31 , further comprising a labeled polynucleotide comprising a sequence selected from the group consisting of nucleotides 5-26 of SEQ ID NO:
103, nucleotides 4-27 of SEQ ID NO: 104, nucleotides 7-30 of SEQ ID NO: 105, nucleotides 6-29 of SEQ ID NO: 107, nucleotides 6-29 of SEQ ID NO: 108, nucleotides 6-29 of SEQ ID NO: 109, nucleotides 8-31 of SEQ ID NO: 111, nucleotides 5-29 of SEQ ID NO: 114, nucleotides 5-29 of SEQ ID NO: 115, nucleotides 4-28 of SEQ ID NO: 116, nucleotides 5-30 of SEQ ID NO: 117, nucleotides 8-28 of SEQ ID NO: 118, nucleotides 8-30 of SEQ ID NO: 119, nucleotides 9-34 of SEQ ID NO: 123, nucleotides 8-34 of SEQ ID NO: 124, nucleotides 7-32 of SEQ ID NO: 128, and nucleotides 4-27 of SEQ ID NO: 129, and wherein the set of polynucleotides is selected from the group consisting of Set-12, Sets 14-27, Set-39, Sets 41-54, Set-66, and Sets 68-81.
40 . The composition of claim 39 , wherein the labeled polynucleotide comprises a sequence selected from the group consisting of SEQ ID NO: 103, SEQ ID NO: 104, SEQ ID NO: 105, SEQ ID NO: 107, SEQ ID NO: 108, SEQ ID NO: 109, SEQ ID NO: 111, SEQ ID NO: 114, SEQ ID NO: 115, SEQ ID NO: 116, SEQ ID NO: 117, SEQ ID NO: 118, SEQ ID NO: 119, SEQ ID NO: 123, SEQ ID NO: 124, SEQ ID NO: 128, and SEQ ID NO: 129.
41 . The composition of claim 40 , wherein the sequence of the labeled polynucleotide is SEQ ID NO: 115, and the set of polynucleotides is selected from the group consisting of Set-20, Set-24, Set-47, Set-51, Set-74 and Set-78.
42 . The composition of claim 41 , wherein the set of polynucleotides is Set-20 or Set-24.
43 . The composition of claim 31 , further comprising a labeled polynucleotide comprising a sequence selected from the group consisting of nucleotides 5-34 of SEQ ID NO: 97, nucleotides 5-31 of SEQ ID NO: 98, nucleotides 3-31 of SEQ ID NO: 99, nucleotides 5-30 of SEQ ID NO: 100, nucleotides 6-29 of SEQ ID NO: 101, nucleotides 5-27 of SEQ ID NO: 106, nucleotides 6-30 of SEQ ID NO: 110, nucleotides 6-29 of SEQ ID NO: 112, nucleotides 8-29 of SEQ ID NO: 120, nucleotides 4-33 of SEQ ID NO: 121, and nucleotides 7-34 of SEQ ID NO: 122, and wherein the set of polynucleotides is selected from the group consisting of Sets 12-27, Sets 39-54, and Sets 66-81.
44 . The composition of claim 43 , wherein the labeled polynucleotide comprises a sequence selected from the group consisting of SEQ ID NO: 97, SEQ ID NO: 98, SEQ ID NO: 99, SEQ ID NO: 100, SEQ ID NO: 101, SEQ ID NO: 106, SEQ ID NO: 110, SEQ ID NO: 112, SEQ ID NO: 120, SEQ ID NO: 121, and SEQ ID NO: 122.
45 . The composition of claim 31 , further comprising a labeled polynucleotide comprising a sequence selected from the group consisting of nucleotides 6-28 of SEQ ID NO: 125 and nucleotides 7-28 of SEQ ID NO: 126, and wherein the set of polynucleotides is selected from the group consisting of Set-12, Sets 14-18, Set-20, Set-24, Set-27, Set-39, Sets 41-45, Set-47, Set-51, Set-54, Set-66, Sets 68-72, Set 74, Set-78, and Set-81.
46 . The composition of claim 45 , wherein the labeled polynucleotide comprises a sequence selected from the group consisting of SEQ ID NO: 125 and SEQ ID NO: 126.
47 . The composition of claim 31 , further comprising a labeled polynucleotide comprising a sequence selected from the group consisting of nucleotides 8-31 of SEQ ID NO: 113 and nucleotides 3-27 of SEQ ID NO: 127, and wherein the set of polynucleotides is selected from the group consisting of Sets 14-27, Sets 41-54, and Sets 68-81.
48 . The composition of claim 47 , wherein the labeled polynucleotide comprises a sequence selected from the group consisting of SEQ ID NO: 113 and SEQ ID NO: 127.
49 . The composition of claim 31 , further comprising a labeled polynucleotide comprising nucleotides 6-27 of SEQ ID NO: 130, and wherein the set of polynucleotides is selected from the group consisting of Sets 12-20, Sets 22-27, Sets 39-47, Sets 49-54, Sets 66-74, and Sets 76-81.
50 . The composition of claim 49 , wherein the labeled polynucleotide comprises SEQ ID NO: 130.
51 . The composition of claim 31 , further comprising a labeled polynucleotide comprising a sequence selected from the group consisting of nucleotides 6-30 of SEQ ID NO: 102 and nucleotides 8-29 of SEQ ID NO: 131, and wherein the set of polynucleotides is selected from the group consisting of Set-13, Set-40 and Set-67.
52 . The composition of claim 51 , wherein the polynucleotide comprises a sequence selected from the group consisting of SEQ ID NO: 102 and SEQ ID NO: 131.
53 . The composition of claim 52 , wherein the probe is a molecular beacon comprising a fluorophore, a quencher, and a polynucleotide.
54 . The composition of claim 53 , wherein the molecular beacon comprises a sequence selected from the group consisting of nucleotides 5-34 of SEQ ID NO: 97, nucleotides 5-31 of SEQ ID NO: 98, nucleotides 3-31 of SEQ ID NO: 99, nucleotides 5-30 of SEQ ID NO: 100, nucleotides 6-29 of SEQ ID NO: 101, nucleotides 6-30 of SEQ ID NO: 102, nucleotides 5-26 of SEQ ID NO: 103, nucleotides 4-27 of SEQ ID NO: 104, nucleotides 7-30 of SEQ ID NO: 105, nucleotides 5-27 of SEQ ID NO: 106, nucleotides 6-29 of SEQ ID NO: 107, nucleotides 6-29 of SEQ ID NO: 108, nucleotides 6-29 of SEQ ID NO: 109, nucleotides 6-30 of SEQ ID NO: 110, nucleotides 8-31 of SEQ ID NO: 111, nucleotides 6-29 of SEQ ID NO: 112, nucleotides 8-31 of SEQ ID NO: 113, nucleotides 5-29 of SEQ ID NO: 114, nucleotides 5-29 of SEQ ID NO: 115, nucleotides 4-28 of SEQ ID NO: 116, nucleotides 5-30 of SEQ ID NO: 117, nucleotides 8-28 of SEQ ID NO: 118, nucleotides 8-30 of SEQ ID NO: 119, nucleotides 8-29 of SEQ ID NO: 120, nucleotides 4-33 of SEQ ID NO: 121, nucleotides 7-34 of SEQ ID NO: 122, nucleotides 9-34 of SEQ ID NO: 123, nucleotides 8-34 of SEQ ID NO: 124, nucleotides 6-28 of SEQ ID NO: 125, nucleotides 7-28 of SEQ ID NO: 126, nucleotides 3-27 of SEQ ID NO: 127, nucleotides 7-32 of SEQ ID NO: 128, nucleotides 4-27 of SEQ ID NO: 129, and nucleotides 6-27 of SEQ ID NO: 130.
55 . The composition of claim 54 , wherein the molecular beacon comprises a sequence selected from the group consisting of SEQ ID NO: 97 through SEQ ID NO: 130.
56 . The composition of claim 55 , wherein the polynucleotide sequence consists of SEQ ID NO: 115.
57 . A molecular beacon comprising a fluorophore, a quencher, and a polynucleotide, wherein the polynucleotide comprises a sequence selected from the group consisting of nucleotides 5-34 of SEQ ID NO: 97, nucleotides 5-31 of SEQ ID NO: 98, nucleotides 3-31 of SEQ ID NO: 99, nucleotides 5-30 of SEQ ID NO: 100, nucleotides 6-29 of SEQ ID NO: 101, nucleotides 6-30 of SEQ ID NO: 102, nucleotides 5-26 of SEQ ID NO: 103, nucleotides 4-27 of SEQ ID NO: 104, nucleotides 7-30 of SEQ ID NO: 105, nucleotides 5-27 of SEQ ID NO: 106, nucleotides 6-29 of SEQ ID NO: 107, nucleotides 6-29 of SEQ ID NO: 108, nucleotides 6-29 of SEQ ID NO: 109, nucleotides 6-30 of SEQ ID NO: 110, nucleotides 8-31 of SEQ ID NO: 111, nucleotides 6-29 of SEQ ID NO: 112, nucleotides 8-31 of SEQ ID NO: 113, nucleotides 5-29 of SEQ ID NO: 114, nucleotides 5-29 of SEQ ID NO: 115, nucleotides 4-28 of SEQ ID NO: 116, nucleotides 5-30 of SEQ ID NO: 117, nucleotides 8-28 of SEQ ID NO: 118, nucleotides 8-30 of SEQ ID NO: 119, and nucleotides 8-29 of SEQ ID NO: 120.
58 . The molecular beacon of claim 57 , wherein the polynucleotide comprises a sequence selected from the group consisting of SEQ ID NO: 99 through SEQ ID NO: 120.
59 . The molecular beacon of claim 58 , wherein the polynucleotide consists of a sequence selected from the group consisting of SEQ ID NO: 99 through SEQ ID NO: 120.
60 . The molecular beacon of claim 57 , wherein the fluorophore is FAM and the quencher is BHQ1.
61 . The molecular beacon of claim 57 , wherein the fluorophore is ATTO 565 or Alexa 594 and the quencher is BHQ1 or BHQ2.
62 . A method of detecting Chlamydia trachomatis in a test sample, the method comprising:
(a) extracting nucleic acid from the test sample; (b) amplifying a target sequence by reacting the nucleic acid extracted in step (a) with a reaction mixture comprising a strand displacement DNA polymerase and a sequence-specific primer set, wherein said sequence-specific primer set is selected from the group consisting of Set-1 through Set-81; and (c) detecting the presence or absence of an amplified product of step (b); wherein the presence of said amplification product is indicative of the presence of Chlamydia trachomatis in the test sample.
63 . The method of claim 62 , wherein the amplification in step (b) of the target sequence is performed at between about 60° C. and about 67° C. for less than 30 minutes.
64 . The method of claim 63 , wherein the amplification step is performed for less than fifteen minutes.
65 . The method of claim 64 , wherein the amplification step is performed for less than ten minutes.
66 . The method of claim 65 , wherein the amplification step is performed for less than six minutes.
67 . The method of claim 62 , wherein the reaction mixture further comprises a reverse transcriptase.
68 . The method of claim 62 , wherein detecting the presence or absence of the amplification product comprises hybridizing the amplified product with a probe comprising a polynucleotide attached to a label.
69 . The method of claim 68 , wherein the label is a fluorophore.
70 . The method of claim 69 , wherein the fluorophore is covalently attached to a terminus of the polynucleotide.
71 . The method of claim 68 , wherein the labeled polynucleotide comprises a sequence selected from the group consisting of nucleotides 5-34 of SEQ ID NO: 97, nucleotides 5-31 of SEQ ID NO: 98, nucleotides 3-31 of SEQ ID NO: 99, nucleotides 5-30 of SEQ ID NO: 100, nucleotides 6-29 of SEQ ID NO: 101, nucleotides 6-30 of SEQ ID NO: 102, nucleotides 5-26 of SEQ ID NO: 103, nucleotides 4-27 of SEQ ID NO: 104, nucleotides 7-30 of SEQ ID NO: 105, nucleotides 5-27 of SEQ ID NO: 106, nucleotides 6-29 of SEQ ID NO: 107, nucleotides 6-29 of SEQ ID NO: 108, nucleotides 6-29 of SEQ ID NO: 109, nucleotides 6-30 of SEQ ID NO: 110, nucleotides 8-31 of SEQ ID NO: 111, nucleotides 6-29 of SEQ ID NO: 112, nucleotides 8-31 of SEQ ID NO: 113, nucleotides 5-29 of SEQ ID NO: 114, nucleotides 5-29 of SEQ ID NO: 115, nucleotides 4-28 of SEQ ID NO: 116, nucleotides 5-30 of SEQ ID NO: 117, nucleotides 8-28 of SEQ ID NO: 118, nucleotides 8-30 of SEQ ID NO: 119, nucleotides 8-29 of SEQ ID NO: 120, nucleotides 4-33 of SEQ ID NO: 121, nucleotides 7-34 of SEQ ID NO: 122, nucleotides 9-34 of SEQ ID NO: 123, nucleotides 8-34 of SEQ ID NO: 124, nucleotides 6-28 of SEQ ID NO: 125, nucleotides 7-28 of SEQ ID NO: 126, nucleotides 3-27 of SEQ ID NO: 127, nucleotides 7-32 of SEQ ID NO: 128, nucleotides 4-27 of SEQ ID NO: 129, nucleotides 6-27 of SEQ ID NO: 130, and nucleotides 8-29 of SEQ ID NO: 131.
72 . The method of claim 71 , wherein the labeled polynucleotide comprises a sequence selected from the group consisting of SEQ ID NOs: 97 through 130.
73 . The method of claim 68 , wherein the labeled polynucleotide comprises a sequence selected from the group consisting of nucleotides 5-26 of SEQ ID NO: 103, nucleotides 4-27 of SEQ ID NO: 104, nucleotides 7-30 of SEQ ID NO: 105, nucleotides 6-29 of SEQ ID NO: 107, nucleotides 6-29 of SEQ ID NO: 108, nucleotides 6-29 of SEQ ID NO: 109, nucleotides 8-31 of SEQ ID NO: 111, nucleotides 5-29 of SEQ ID NO: 114, nucleotides 5-29 of SEQ ID NO: 115, nucleotides 4-28 of SEQ ID NO: 116, nucleotides 5-30 of SEQ ID NO: 117, nucleotides 8-28 of SEQ ID NO: 118, nucleotides 8-30 of SEQ ID NO: 119, nucleotides 9-34 of SEQ ID NO: 123, nucleotides 8-34 of SEQ ID NO: 124, nucleotides 7-32 of SEQ ID NO: 128, and nucleotides 4-27 of SEQ ID NO: 129, and wherein the sequence-specific primer set is selected from the group consisting of Set-12, Sets 14-27, Set-39, Sets 41-54, Set-66, and Sets 68-81.
74 . The method of claim 73 , wherein the labeled polynucleotide comprises a sequence selected from the group consisting of SEQ ID NO: 103, SEQ ID NO: 104, SEQ ID NO: 105, SEQ ID NO: 107, SEQ ID NO: 108, SEQ ID NO: 109, SEQ ID NO: 111, SEQ ID NO: 114, SEQ ID NO: 115, SEQ ID NO: 116, SEQ ID NO: 117, SEQ ID NO: 118, SEQ ID NO: 119, SEQ ID NO: 123, SEQ ID NO: 124, SEQ ID NO: 128, and SEQ ID NO: 129
75 . The method of claim 74 , wherein the sequence of the labeled polynucleotide is SEQ ID NO: 115, and the sequence-specific primer set is selected from the group consisting of Set-20, Set-24, Set-47, Set-51, Set-74 and Set-78.
76 . The method of claim 75 , wherein the sequence-specific primer set is Set-20 or Set-24.
77 . The method of claim 68 , wherein the labeled polynucleotide comprises a sequence selected from the group consisting of nucleotides 5-34 of SEQ ID NO: 97, nucleotides 5-31 of SEQ ID NO: 98, nucleotides 3-31 of SEQ ID NO: 99, nucleotides 5-30 of SEQ ID NO: 100, nucleotides 6-29 of SEQ ID NO: 101, nucleotides 5-27 of SEQ ID NO: 106, nucleotides 6-30 of SEQ ID NO: 110, nucleotides 6-29 of SEQ ID NO: 112, nucleotides 8-29 of SEQ ID NO: 120, nucleotides 4-33 of SEQ ID NO: 121, and nucleotides 7-34 of SEQ ID NO: 122, and wherein the sequence-specific primer set is selected from the group consisting of Sets 12-27, Sets 39-54, and Sets 66-81.
78 . The method of claim 77 , wherein the labeled polynucleotide comprises a sequence selected from the group consisting of SEQ ID NO: 97, SEQ ID NO: 98, SEQ ID NO: 99, SEQ ID NO: 100, SEQ ID NO: 101, SEQ ID NO: 106, SEQ ID NO: 110, SEQ ID NO: 112, SEQ ID NO: 120, SEQ ID NO: 121, and SEQ ID NO: 122
79 . The method of claim 68 , wherein the labeled polynucleotide comprises a sequence selected from the group consisting of nucleotides 6-28 of SEQ ID NO: 125 and nucleotides 7-28 of SEQ ID NO: 126, and wherein the sequence-specific primer set is selected from the group consisting of Set-12, Sets 14-18, Set-20, Set-24, Set-27, Set-39, Sets 41-45, Set-47, Set-51, Set-54, Set-66, Sets 68-72, Set 74, Set-78, and Set-81.
80 . The method of claim 79 , wherein the labeled polynucleotide comprises a sequence selected from the group consisting of SEQ ID NO: 125 and SEQ ID NO: 126.
81 . The method of claim 68 , wherein the labeled polynucleotide comprises a sequence selected from the group consisting of nucleotides 8-31 of SEQ ID NO: 113 and nucleotides 3-27 of SEQ ID NO: 127, and wherein the sequence-specific primer set is selected from the group consisting of Sets 14-27, Sets 41-54, and Sets 68-81.
82 . The method of claim 81 , wherein the labeled polynucleotide comprises a sequence selected from the group consisting of SEQ ID NO: 113 and SEQ ID NO: 127.
83 . The method of claim 68 , wherein the labeled polynucleotide comprises nucleotides 6-27 of SEQ ID NO: 130, and wherein the sequence-specific primer set is selected from the group consisting of Sets 12-20, Sets 22-27, Sets 39-47, Sets 49-54, Sets 66-74, and Sets 76-81.
84 . The method of claim 83 , wherein the labeled polynucleotide comprises SEQ ID NO: 130.
85 . The method of claim 68 , wherein the labeled polynucleotide comprises a sequence selected from the group consisting of nucleotides 6-30 of SEQ ID NO: 102 and nucleotides 8-29 of SEQ ID NO: 131, and wherein sequence-specific primer set is selected from the group consisting of Set-13, Set-40 and Set-67.
86 . The method of claim 85 , wherein the polynucleotide comprises a sequence selected from the group consisting of SEQ ID NO: 102 and SEQ ID NO: 131.
87 . The method of claim 62 , wherein Chlamydia trachomatis is present in the test sample at a concentration of ≤100 IFU/mL.
88 . The method of claim 87 , wherein Chlamydia trachomatis is present in the test sample at a concentration of ≤50 IFU/mL.
89 . The method of claim 88 , wherein Chlamydia trachomatis is present in the test sample at a concentration of ≤5 IFU/mL.
90 . The method of claim 89 , wherein Chlamydia trachomatis is present in the test sample at a concentration of ≤2 IFU/mL.
91 . The method of claim 87 , wherein Chlamydia trachomatis is present in the test sample at a concentration of ≤5 IFU/ml and the amplification step is performed for less than 15 minutes.
92 . The method of claim 87 , wherein Chlamydia trachomatis is present in the test sample at a concentration of ≤10 IFU/ml and the amplification step is performed for less than six minutes.
93 . A kit comprising a composition according to claim 31 .
94 . The kit of claim 93 , further comprising a strand displacement polymerase.
95 . The kit of claim 94 , further comprising a molecular beacon comprising a fluorophore, a quencher, and a polynucleotide, wherein the polynucleotide comprises a sequence selected from the group consisting of nucleotides 5-34 of SEQ ID NO: 97, nucleotides 5-31 of SEQ ID NO: 98, nucleotides 3-31 of SEQ ID NO: 99, nucleotides 5-30 of SEQ ID NO: 100, nucleotides 6-29 of SEQ ID NO: 101, nucleotides 6-30 of SEQ ID NO: 102, nucleotides 5-26 of SEQ ID NO: 103, nucleotides 4-27 of SEQ ID NO: 104, nucleotides 7-30 of SEQ ID NO: 105, nucleotides 5-27 of SEQ ID NO: 106, nucleotides 6-29 of SEQ ID NO: 107, nucleotides 6-29 of SEQ ID NO: 108, nucleotides 6-29 of SEQ ID NO: 109, nucleotides 6-30 of SEQ ID NO: 110, nucleotides 8-31 of SEQ ID NO: 111, nucleotides 6-29 of SEQ ID NO: 112, nucleotides 8-31 of SEQ ID NO: 113, nucleotides 5-29 of SEQ ID NO: 114, nucleotides 5-29 of SEQ ID NO: 115, nucleotides 4-28 of SEQ ID NO: 116, nucleotides 5-30 of SEQ ID NO: 117, nucleotides 8-28 of SEQ ID NO: 118, nucleotides 8-30 of SEQ ID NO: 119, nucleotides 8-29 of SEQ ID NO: 120, nucleotides 4-33 of SEQ ID NO: 121, nucleotides 7-34 of SEQ ID NO: 122, nucleotides 9-34 of SEQ ID NO: 123, nucleotides 8-34 of SEQ ID NO: 124, nucleotides 6-28 of SEQ ID NO: 125, nucleotides 7-28 of SEQ ID NO: 126, nucleotides 3-27 of SEQ ID NO: 127, nucleotides 7-32 of SEQ ID NO: 128, nucleotides 4-27 of SEQ ID NO: 129, nucleotides 6-27 of SEQ ID NO: 130, and nucleotides 8-29 of SEQ ID NO: 131.
96 . The kit of claim 95 , wherein the polynucleotide comprises a sequence selected from the group consisting of SEQ ID NO: 97 through SEQ ID NO: 131.
97 . The kit of claim 96 , wherein the polynucleotide consists of a sequence selected from the group consisting of SEQ ID NO: 97 through SEQ ID NO: 131.
98 . The kit of claim 97 , wherein the polynucleotide consists of SEQ ID NO: 115 and the set of polynucleotides is Set-20 or Set-24.
99 . A method of detecting Chlamydia trachomatis in a test sample, the method comprising:
(a) extracting nucleic acid from the test sample; (b) amplifying a target sequence by reacting the nucleic acid extracted in step (a) for less than ten minutes with a reaction mixture comprising a strand displacement DNA polymerase and a sequence-specific LAMP primer set; and (c) detecting the presence or absence of an amplified product of step (b); wherein the presence of said amplification product is indicative of the presence of Chlamydia trachomatis in the test sample.
100 . The method of claim 99 , wherein Chlamydia trachomatis is present in the test sample at a concentration of ≤100 IFU/mL.
101 . The method of claim 100 , wherein Chlamydia trachomatis is present in the test sample at a concentration of ≤10 IFU/mL.
102 . The method of claim 99 , wherein the amplifying step comprises reacting the nucleic acid extracted in step (a) with a reaction mixture comprising a strand displacement DNA polymerase and a sequence-specific primer set, wherein said sequence-specific primer set is selected from the group consisting of Set-1 through Set-81.
103 . The method of claim 102 , wherein detecting the presence or absence of the amplification product comprises hybridizing the amplified product with a molecular beacon comprising a polynucleotide sequence selected from the group consisting of SEQ ID NO: 97 through SEQ ID NO: 131.
104 . The method of claim 102 , wherein detecting the presence or absence of the amplification product comprises hybridizing the amplified product with a molecular beacon comprising a polynucleotide sequence selected from the group consisting of SEQ ID NO: 99 through SEQ ID NO: 120.Join the waitlist — get patent alerts
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