RU2400538C2 - Oligonucleotide with double specificity and methods, which it is used in - Google Patents
Oligonucleotide with double specificity and methods, which it is used in Download PDFInfo
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- RU2400538C2 RU2400538C2 RU2007132657/10A RU2007132657A RU2400538C2 RU 2400538 C2 RU2400538 C2 RU 2400538C2 RU 2007132657/10 A RU2007132657/10 A RU 2007132657/10A RU 2007132657 A RU2007132657 A RU 2007132657A RU 2400538 C2 RU2400538 C2 RU 2400538C2
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- 108091034117 Oligonucleotide Proteins 0.000 title claims abstract 38
- 238000000034 method Methods 0.000 title claims abstract 24
- 150000007523 nucleic acids Chemical class 0.000 claims abstract 43
- 108020004707 nucleic acids Proteins 0.000 claims abstract 39
- 102000039446 nucleic acids Human genes 0.000 claims abstract 39
- 239000011159 matrix material Substances 0.000 claims abstract 20
- 239000002773 nucleotide Substances 0.000 claims abstract 19
- 125000003729 nucleotide group Chemical group 0.000 claims abstract 19
- 238000006243 chemical reaction Methods 0.000 claims abstract 9
- 238000009396 hybridization Methods 0.000 claims abstract 6
- 238000003786 synthesis reaction Methods 0.000 claims abstract 6
- 230000015572 biosynthetic process Effects 0.000 claims abstract 5
- 230000000694 effects Effects 0.000 claims abstract 2
- 238000000137 annealing Methods 0.000 claims 21
- 230000000295 complement effect Effects 0.000 claims 12
- -1 deoxy-3-nitropyrrole Chemical compound 0.000 claims 10
- 229960003786 inosine Drugs 0.000 claims 9
- OZFPSOBLQZPIAV-UHFFFAOYSA-N 5-nitro-1h-indole Chemical compound [O-][N+](=O)C1=CC=C2NC=CC2=C1 OZFPSOBLQZPIAV-UHFFFAOYSA-N 0.000 claims 7
- VGONTNSXDCQUGY-RRKCRQDMSA-N 2'-deoxyinosine Chemical compound C1[C@H](O)[C@@H](CO)O[C@H]1N1C(N=CNC2=O)=C2N=C1 VGONTNSXDCQUGY-RRKCRQDMSA-N 0.000 claims 6
- 108091028043 Nucleic acid sequence Proteins 0.000 claims 6
- 238000004925 denaturation Methods 0.000 claims 6
- 230000036425 denaturation Effects 0.000 claims 6
- VGONTNSXDCQUGY-UHFFFAOYSA-N desoxyinosine Natural products C1C(O)C(CO)OC1N1C(NC=NC2=O)=C2N=C1 VGONTNSXDCQUGY-UHFFFAOYSA-N 0.000 claims 6
- UGQMRVRMYYASKQ-KQYNXXCUSA-N Inosine Chemical compound O[C@@H]1[C@H](O)[C@@H](CO)O[C@H]1N1C2=NC=NC(O)=C2N=C1 UGQMRVRMYYASKQ-KQYNXXCUSA-N 0.000 claims 5
- 229930010555 Inosine Natural products 0.000 claims 5
- LOJNBPNACKZWAI-UHFFFAOYSA-N 3-nitro-1h-pyrrole Chemical compound [O-][N+](=O)C=1C=CNC=1 LOJNBPNACKZWAI-UHFFFAOYSA-N 0.000 claims 4
- 108020004414 DNA Proteins 0.000 claims 4
- 230000003321 amplification Effects 0.000 claims 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims 4
- WETFHJRYOTYZFD-YIZRAAEISA-N (2r,3s,5s)-2-(hydroxymethyl)-5-(3-nitropyrrol-1-yl)oxolan-3-ol Chemical compound C1[C@H](O)[C@@H](CO)O[C@@H]1N1C=C([N+]([O-])=O)C=C1 WETFHJRYOTYZFD-YIZRAAEISA-N 0.000 claims 3
- 230000002068 genetic effect Effects 0.000 claims 3
- 239000000523 sample Substances 0.000 claims 3
- NZJKEQFPRPAEPO-UHFFFAOYSA-N 1h-benzimidazol-4-amine Chemical compound NC1=CC=CC2=C1N=CN2 NZJKEQFPRPAEPO-UHFFFAOYSA-N 0.000 claims 2
- NEJMFSBXFBFELK-UHFFFAOYSA-N 4-nitro-1h-benzimidazole Chemical compound [O-][N+](=O)C1=CC=CC2=C1N=CN2 NEJMFSBXFBFELK-UHFFFAOYSA-N 0.000 claims 2
- QFFLRMDXYQOYKO-KVQBGUIXSA-N 7-[(2r,4s,5r)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-1h-imidazo[4,5-d]triazin-4-one Chemical compound C1[C@H](O)[C@@H](CO)O[C@H]1N1C2=NN=NC(O)=C2N=C1 QFFLRMDXYQOYKO-KVQBGUIXSA-N 0.000 claims 2
- GPNJRFOWEPLBMS-UHFFFAOYSA-N N1CCOCC1.[N+](=O)([O-])C1=CC=CC=2N=CNC21 Chemical compound N1CCOCC1.[N+](=O)([O-])C1=CC=CC=2N=CNC21 GPNJRFOWEPLBMS-UHFFFAOYSA-N 0.000 claims 2
- DXLSCOXGOOYYRB-MCDZGGTQSA-N [C@@H]1([C@H](O)[C@H](O)[C@@H](CO)O1)N1C=NC=2C(O)=NC=NC12.N1CCOCC1 Chemical compound [C@@H]1([C@H](O)[C@H](O)[C@@H](CO)O1)N1C=NC=2C(O)=NC=NC12.N1CCOCC1 DXLSCOXGOOYYRB-MCDZGGTQSA-N 0.000 claims 2
- BGOCOHKJUMJTCN-UHFFFAOYSA-N [N+](=O)([O-])C1=CNC=C1.N1CCOCC1 Chemical compound [N+](=O)([O-])C1=CNC=C1.N1CCOCC1 BGOCOHKJUMJTCN-UHFFFAOYSA-N 0.000 claims 2
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 2
- 238000003752 polymerase chain reaction Methods 0.000 claims 2
- 238000012163 sequencing technique Methods 0.000 claims 2
- LUNAYDDJTHHELV-GIWSHQQXSA-N 9-[(2r,3s,4r,5r)-3-fluoro-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-3h-purin-6-one Chemical compound O[C@]1(F)[C@H](O)[C@@H](CO)O[C@H]1N1C(NC=NC2=O)=C2N=C1 LUNAYDDJTHHELV-GIWSHQQXSA-N 0.000 claims 1
- ZCJSAEHUZGDJQN-AZUPYXJKSA-N COCCO[C@H]1[C@@H](O[C@@H]([C@H]1O)CO)N1C=NC=2C(O)=NC=NC12.[N+](=O)([O-])C1=CC=CC=C1 Chemical compound COCCO[C@H]1[C@@H](O[C@@H]([C@H]1O)CO)N1C=NC=2C(O)=NC=NC12.[N+](=O)([O-])C1=CC=CC=C1 ZCJSAEHUZGDJQN-AZUPYXJKSA-N 0.000 claims 1
- 108091028664 Ribonucleotide Proteins 0.000 claims 1
- 241000700605 Viruses Species 0.000 claims 1
- JLCPHMBAVCMARE-UHFFFAOYSA-N [3-[[3-[[3-[[3-[[3-[[3-[[3-[[3-[[3-[[3-[[3-[[5-(2-amino-6-oxo-1H-purin-9-yl)-3-[[3-[[3-[[3-[[3-[[3-[[5-(2-amino-6-oxo-1H-purin-9-yl)-3-[[5-(2-amino-6-oxo-1H-purin-9-yl)-3-hydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(6-aminopurin-9-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(6-aminopurin-9-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(6-aminopurin-9-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(6-aminopurin-9-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(4-amino-2-oxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(6-aminopurin-9-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(6-aminopurin-9-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(4-amino-2-oxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(4-amino-2-oxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(4-amino-2-oxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(6-aminopurin-9-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(4-amino-2-oxopyrimidin-1-yl)oxolan-2-yl]methyl [5-(6-aminopurin-9-yl)-2-(hydroxymethyl)oxolan-3-yl] hydrogen phosphate Polymers Cc1cn(C2CC(OP(O)(=O)OCC3OC(CC3OP(O)(=O)OCC3OC(CC3O)n3cnc4c3nc(N)[nH]c4=O)n3cnc4c3nc(N)[nH]c4=O)C(COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3CO)n3cnc4c(N)ncnc34)n3ccc(N)nc3=O)n3cnc4c(N)ncnc34)n3ccc(N)nc3=O)n3ccc(N)nc3=O)n3ccc(N)nc3=O)n3cnc4c(N)ncnc34)n3cnc4c(N)ncnc34)n3cc(C)c(=O)[nH]c3=O)n3cc(C)c(=O)[nH]c3=O)n3ccc(N)nc3=O)n3cc(C)c(=O)[nH]c3=O)n3cnc4c3nc(N)[nH]c4=O)n3cnc4c(N)ncnc34)n3cnc4c(N)ncnc34)n3cnc4c(N)ncnc34)n3cnc4c(N)ncnc34)O2)c(=O)[nH]c1=O JLCPHMBAVCMARE-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 238000004458 analytical method Methods 0.000 claims 1
- HMFHBZSHGGEWLO-TXICZTDVSA-N beta-D-ribose Chemical group OC[C@H]1O[C@@H](O)[C@H](O)[C@@H]1O HMFHBZSHGGEWLO-TXICZTDVSA-N 0.000 claims 1
- 239000005547 deoxyribonucleotide Substances 0.000 claims 1
- 125000002637 deoxyribonucleotide group Chemical group 0.000 claims 1
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Substances [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 claims 1
- 239000002336 ribonucleotide Substances 0.000 claims 1
- 125000002652 ribonucleotide group Chemical group 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 239000000758 substrate Substances 0.000 claims 1
- 230000002194 synthesizing effect Effects 0.000 claims 1
- 239000003814 drug Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
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Abstract
FIELD: medicine.
SUBSTANCE: oligonucleotide with double specificity for synthesis of nucleic acid molecule in elongation reaction on matrix has the following general formula: 5'-Xp-Yq-Zr-3'. Method of obtaining oligonucleotide with double specificity includes selection of sequence of target nucleic acid. After that constructing of sequence of oligonucleotide, which contains hybridisation sequence and separating section, containing at least three universal bases, so that hybridisation section penetrates enters hybridisation sequence, producing in said oligonucleotide three sections. After that location of separating section in said nucleotide is determined.
EFFECT: claimed invention allows to carry out matrix-depending reactions with much higher specificity.
28 cl, 13 dwg, 1 tbl, 8 ex
Description
Claims (28)
где Хр представляет 5'-участок специфичности с высокой Тпл, имеющий гибридизующуюся нуклеотидную последовательность, по существу комплементарную участку матричной нуклеиновой кислоты, с которым ему надлежит гибридизоваться, Yq представляет разделяющий участок, содержащий по меньшей мере три универсальных основания, Zr представляет 3'-участок специфичности с низкой Тпл, имеющий гибридизующуюся нуклеотидную последовательность, по существу комплементарную участку матричной нуклеиновой кислоты, с которым ему надлежит гибридизоваться, p, q и r представляют число нуклеотидов, причем p представляет собой целое число от 15 до 40, q представляет собой целое число от 3 до 10 и г представляет собой целое число от 3 до 15, а X, Y и Z - это дезоксирибонуклеотиды или рибонуклеотиды; Тпл 5'-участка специфичности с высокой Тпл выше, чем Тпл 3'-участка специфичности с низкой Тпл, разделяющий участок имеет из трех участков самую низкую Тпл, причем Тпл 5'-участка специфичности с высокой Тпл находится в пределах от 40 до 80°С, Тпл 3'-участка специфичности с низкой Тпл находится в пределах от 10 до 40°С, а разделяющий участок имеет Тпл в пределах от 3 до 15°С; разделяющий участок образует подобную пузырьку структуру без спаривания оснований при условиях, когда 5'-участок специфичности с высокой Тпл и 3'-участок специфичности с низкой Тпл отжигаются с матричной нуклеиновой кислотой, обеспечивая разделение 5'-участка специфичности с высокой Тпл и 3'-участка специфичности с низкой Тпл, посредством чего специфичность отжига олигонуклеотида определяется двояко 5'-участком специфичности с высокой Тпл и 3'-участком специфичности с низкой Тпл, так что повышается общая специфичность отжига олигонуклеотида.1. An oligonucleotide with double specificity for the synthesis of a nucleic acid molecule in a matrix extension reaction, which is represented by the following general formula: 5'-X p -Y q -Z r -3 ',
where X p represents the 5'-site of specificity with high T PL having a hybridizable nucleotide sequence essentially complementary to the site of the matrix nucleic acid with which it should be hybridized, Y q represents a dividing site containing at least three universal bases, Z r represents 3'-portion specificity low T m having a hybridizing nucleotide sequence substantially complementary to a portion of the template nucleic acid to which it must hybridize. p, q and r represent the number of nucleotides, wherein p represents an integer from 15 to 40, q represents an integer from 3 to 10 and g represents an integer from 3 to 15, and X, Y and Z are deoxyribonucleotides or ribonucleotides; T PL of the 5'-site of specificity with high T PL is higher than T PL of the 3'-site of specificity with low T PL , the dividing section has the lowest T PL of three sections, and T PL of the 5'-site of specificity with high T PL is in the range from 40 to 80 ° C, T PL 3'-site specificity with low T PL is in the range from 10 to 40 ° C, and the separating section has a T PL in the range from 3 to 15 ° C; the separating region forms a bubble-like structure without base pairing under conditions when the 5'-region of specificity with high Tm and the 3'-region of specificity with low Tmn are annealed with matrix nucleic acid, providing separation of the 5'-region of specificity with high Tm and 3'-site specificity of a low Tm, whereby the annealing specificity of the oligonucleotide is determined in two ways 5'-portion with high specificity and Tm specificity portion of the 3'-low T m, is increased so that the overall annealing specificity oligonuk eotida.
(а) отжиг олигонуклеотида с двойной специфичностью с молекулой матричной нуклеиновой кислоты, причем разделяющий участок образует подобную пузырьку структуру без спаривания оснований при условиях, когда 5'-участок специфичности с высокой Тпл и 3'-участок специфичности с низкой Тпл отжигаются с матричной нуклеиновой кислотой, причем отжиг производится в условиях, когда 5'-участок специфичности с высокой Тпл и 3'-участок специфичности с низкой Тпл отжигаются с матричной нуклеиновой кислотой, причем этот отжиг осуществляют при температуре от 40 до 75°С; и
(б) удлинение олигонуклеотида с двойной специфичностью, чтобы синтезировать молекулу нуклеиновой кислоты, комплементарную матричной нуклеиновой кислоте.9. A method for synthesizing a nucleic acid molecule using a double specificity oligonucleoid according to any one of claims 1 to 8 in a matrix extension reaction, comprising the following steps:
(a) annealing a double specificity oligonucleotide with a matrix nucleic acid molecule, wherein the separating region forms a bubble-like structure without base pairing under conditions when the 5'-region of specificity with high Tm and the 3'-region of specificity with low Tm are annealed nucleic acid, moreover, annealing is carried out under conditions when the 5'-specificity region with high T PL and the 3'-specificity region with low T PL are annealed with matrix nucleic acid, and this annealing is carried out at a temperature from 40 to 75 ° C; and
(b) lengthening the oligonucleotide with double specificity to synthesize a nucleic acid molecule complementary to the template nucleic acid.
(а) синтез молекулы комплементарной нуклеиновой кислоты, которая комплементарна молекуле нуклеиновой кислоты, которую следует секвенировать, путем проведения по меньшей мере двух циклов отжига праймера, удлинения праймера и денатурации, с использованием в качестве секвенирующего праймера олигонуклеотида с двойной специфичностью; причем разделяющий участок образует подобную пузырьку структуру без спаривания оснований при условиях, когда 5'-участок специфичности с высокой Тпл и 3'-участок специфичности с низкой Тпл отжигаются с молекулой целевой нуклеиновой кислоты; при этом отжиг в реакции синтеза производится в условиях, когда 5'-участок специфичности с высокой Тпл и 3'-участок специфичности с низкой Тпл отжигаются с молекулой матричной нуклеиновой кислоты, причем этот отжиг осуществляют при температуре от 40 до 75°С; и
(б) определение нуклеотидной последовательности синтезированной молекулы комплементарной нуклеиновой кислоты.15. A method of sequencing a target nucleic acid molecule using a double specificity oligonucleotide according to any one of claims 1 to 8 from DNA or a mixture of nucleic acids, which comprises the following steps:
(a) synthesis of a complementary nucleic acid molecule that is complementary to a nucleic acid molecule to be sequenced by performing at least two primer annealing cycles, primer extension and denaturation using a double specificity oligonucleotide as a sequencing primer; moreover, the separating section forms a bubble-like structure without pairing under conditions when the 5'-region of specificity with high T PL and the 3'-region of specificity with low T PL are annealed with the target nucleic acid molecule; wherein the annealing in the synthesis reaction is carried out under conditions when the 5'-specificity region with high Tm and the 3'-specificity region with low T pl are annealed with a matrix nucleic acid molecule, and this annealing is carried out at a temperature of from 40 to 75 ° C; and
(b) determining the nucleotide sequence of the synthesized complementary nucleic acid molecule.
(а) отжиг олигонуклеотида с двойной специфичностью с молекулой матричной нуклеиновой кислоты, причем разделяющий участок образует подобную пузырьку структуру без спаривания оснований при условиях, когда 5'-участок специфичности с высокой Тпл и 3'-участок специфичности с низкой Тпл отжигаются с матричной нуклеиновой кислотой; при этом отжиг производится в условиях, когда 5'-участок специфичности с высокой Тпл и 3'-участок специфичности с низкой Тпл отжигаются с матричной нуклеиновой кислотой, когда 5'-участок специфичности с высокой Тпл и/или 3'-участок специфичности с низкой Тпл имеют одно или более чем одно основание, не подходящее для спаривания с его участком-мишенью; причем этот отжиг осуществляют при температуре от 40 до 75°С;
(б) удлинение олигонуклеотида с двойной специфичностью, чтобы синтезировать молекулу нуклеиновой кислоты, комплементарную матрице;
(в) детектирование наличия удлинения по матрице олигонуклеотида с двойной специфичностью.17. A method for detecting a nucleic acid molecule with genetic diversity in an extension reaction on a double specificity oligonucleotide matrix according to any one of claims 1 to 8, which comprises the following steps:
(a) annealing a double specificity oligonucleotide with a matrix nucleic acid molecule, wherein the separating region forms a bubble-like structure without base pairing under conditions when the 5'-region of specificity with high Tm and the 3'-region of specificity with low Tm are annealed nucleic acid; in this case, annealing is performed under conditions when the 5'-specificity region with high T PL and the 3'-specificity region with low T PL are annealed with matrix nucleic acid, when the 5'-specificity region with high T PL and / or 3'-region low T pl specificities have one or more than one base not suitable for pairing with its target region; moreover, this annealing is carried out at a temperature of from 40 to 75 ° C;
(b) lengthening the oligonucleotide with double specificity to synthesize a nucleic acid molecule complementary to the matrix;
(c) detecting the presence of elongation in the matrix of the oligonucleotide with double specificity.
(а) удлинение олигонуклеотида с двойной специфичностью как зонда, иммобилизованного на подложке, включающее по меньшей мере один цикл гибридизации, удлинения по матрице и денатурации, причем гибридизацию осуществляют путем приведения олигонуклеотида с двойной специфичностью в контакт с образцом нуклеиновой кислоты, где разделяющий участок образует подобную пузырьку структуру без спаривания оснований при условиях, когда 5'-участок специфичности с высокой Тпл и 3'-участок специфичности с низкой Тпл отжигаются с целевой нуклеотидной последовательностью; при этом гибридизация производится в условиях, когда 5'-участок специфичности с высокой Тпл и 3'-участок специфичности с низкой Тпл гибридизуются с целевой нуклеоиновой кислотой, причем этот отжиг осуществляют при температуре от 40 до 75°С; и
(б) анализ наличия удлинения по матрице.20. A method for detecting a target nucleotide sequence in a nucleic acid sample using the matrix extension reaction of a double specificity oligonucleotide according to any one of claims 1 to 8, which comprises the following steps:
(a) lengthening a double specificity oligonucleotide as a probe immobilized on a substrate, comprising at least one hybridization cycle, matrix extension and denaturation, the hybridization being carried out by bringing the double specificity oligonucleotide into contact with a nucleic acid sample, where a separating region forms a similar bubble structure without base pairing under conditions when the 5'-region of specificity with high T PL and the 3'-region of specificity with low T PL are annealed with the target nucleotide research activity; wherein the hybridization is performed under conditions when the 5'-portion with high specificity and Tm specificity portion of the 3'-low T m hybridize with the target nukleoinovoy acid, wherein the annealing is carried out at a temperature of from 40 to 75 ° C; and
(b) analysis of the presence of elongation in the matrix.
(а) выбор последовательности целевой нуклеиновой кислоты;
(б) конструирование последовательности олигонуклеотида, содержащего (i) гибридизующуюся последовательность, по существу комплементарную целевой нуклеиновой кислоте и (ii) разделяющий участок, содержащий по меньшей мере три универсальных основания, так что разделяющий участок внедряется в гибридизующуюся последовательность, с получением в этом олигонуклеотиде трех участков; и
(в) определение положения разделяющего участка в этом олигонуклеотиде, чтобы обеспечить для участка, расположенного в 5'-направлении от разделяющего участка, более высокую Тпл; чем у участка, расположенного в 3'-направлении от разделяющего участка, и обеспечить для разделяющего участка наиболее низкую Тпл среди трех участков, таким образом приводя к олигонуклеотиду, имеющему три различных участка, отличающихся друг от друга величинами Тпл, из которых (i) 5'-участок специфичности с высокой Тпл этого олигонуклеотида имеет гибридизующуюся нуклеотидную последовательность, по существу комплементарную целевой нуклеиновой кислоте, (ii) 3'-участок специфичности с низкой Тпл этого олигонуклеотида имеет гибридизующуюся нуклеотидную последовательность, по существу комплементарную целевой нуклеиновой кислоте; и (iii) разделяющий участок этого олигонуклеотида между 5'-участком специфичности с высокой Тпл и 3'-участком специфичности с низкой Тпл, содержит по меньшей мере три универсальных основания; Тпл 5'-участка специфичности с высокой Тпл выше, чем Тпл 3'-участка специфичности с низкой Тпл, и разделяющий участок имеет самую низкую Тпл среди трех участков, посредством чего специфичность отжига олигонуклеотида с целевой нуклеиновой кислотой определяется двояко и 5'-участком специфичности с высокой Тпл, и 3'-участком специфичности с низкой Тпл; где число нуклеотидов в 5'-участке специфичности с высокой Тпл составляет от 15 до 40, число нуклеотидов в 3'-участке специфичности с низкой Тпл составляет от 3 до 15, и число нуклеотидов в разделяющем участке составляет от 3 до 10; и Тпл 5'-участка специфичности с высокой Тпл находится в диапазоне от 40 до 80°С, Тпл 3'-участка специфичности с низкой Тпл находится в диапазоне от 10 до 40°С, а Тпл разделяющего участка находится в диапазоне от 3 до 15°С.21. A method of obtaining an oligonucleotide with double specificity, comprising the following steps:
(a) selecting the sequence of the target nucleic acid;
(b) constructing an oligonucleotide sequence comprising (i) a hybridizing sequence substantially complementary to the target nucleic acid; and (ii) a separating region containing at least three universal bases, such that the separating region is inserted into the hybridizing sequence to obtain three oligonucleotides plots; and
(c) determining the position of the separating region in this oligonucleotide to provide for the region located in the 5'-direction from the separating region, a higher T PL ; than at the site located in the 3'-direction from the dividing site, and to provide the dividing section with the lowest T PL among the three sections, thus leading to an oligonucleotide having three different sections, differing from each other by the values of T PL , of which (i ) The 5'-region of specificity with a high T PL of this oligonucleotide has a hybridizable nucleotide sequence essentially complementary to the target nucleic acid, (ii) the 3'-region of specificity with a high T PL of this oligonucleotide has a hybridizable a nucleotide sequence essentially complementary to the target nucleic acid; and (iii) the dividing portion of this oligonucleotide between the 5'-region of specificity with high T PL and the 3'-region of specificity with low T PL , contains at least three universal bases; The Tm of the 5'-region of specificity with high Tm is higher than the Tm of the 3'-region of specificity with low Tmpl , and the separating region has the lowest Tm of the three sites, whereby the specificity of annealing the oligonucleotide with the target nucleic acid is determined in two ways and The 5'-site specificity with high T PL , and the 3'-site specificity with low T PL ; where the number of nucleotides in the 5'-region of specificity with high T PL is from 15 to 40, the number of nucleotides in the 3'-region of specificity with low T PL is from 3 to 15, and the number of nucleotides in the separating region is from 3 to 10; and T PL of the 5'-site of specificity with high T PL is in the range from 40 to 80 ° C, T PL of the 3'-site of specificity with low T PL is in the range from 10 to 40 ° C, and T PL of the separating site is in range from 3 to 15 ° C.
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| PCT/KR2005/001206 WO2006095941A1 (en) | 2005-03-05 | 2005-04-26 | Processes using dual specificity oligonucleotide and dual specificity oligonucleotide |
| KRPCT/KR2005/001206 | 2005-04-26 |
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| KR101032750B1 (en) | 2011-05-06 |
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