RU96116815A - Способ амплификации нуклеиновой кислоты - Google Patents
Способ амплификации нуклеиновой кислотыInfo
- Publication number
- RU96116815A RU96116815A RU96116815/13A RU96116815A RU96116815A RU 96116815 A RU96116815 A RU 96116815A RU 96116815/13 A RU96116815/13 A RU 96116815/13A RU 96116815 A RU96116815 A RU 96116815A RU 96116815 A RU96116815 A RU 96116815A
- Authority
- RU
- Russia
- Prior art keywords
- thermostable enzyme
- chemically modified
- reaction
- mixture
- thermostable
- Prior art date
Links
- 230000003321 amplification Effects 0.000 title claims 3
- 238000003199 nucleic acid amplification method Methods 0.000 title claims 3
- 150000007523 nucleic acids Chemical class 0.000 title claims 3
- 108020004707 nucleic acids Proteins 0.000 title claims 3
- 108090000790 Enzymes Proteins 0.000 claims 26
- 102000004190 Enzymes Human genes 0.000 claims 26
- 239000003153 chemical reaction reagent Substances 0.000 claims 13
- 238000006243 chemical reaction Methods 0.000 claims 9
- 239000000203 mixture Substances 0.000 claims 9
- 101700011961 DPOM Proteins 0.000 claims 5
- 101710029649 MDV043 Proteins 0.000 claims 5
- 101700061424 POLB Proteins 0.000 claims 5
- 101700054624 RF1 Proteins 0.000 claims 5
- 230000002255 enzymatic Effects 0.000 claims 5
- 150000008064 anhydrides Chemical class 0.000 claims 3
- 230000000694 effects Effects 0.000 claims 3
- AYKYXWQEBUNJCN-UHFFFAOYSA-N 3-methylfuran-2,5-dione Chemical compound CC1=CC(=O)OC1=O AYKYXWQEBUNJCN-UHFFFAOYSA-N 0.000 claims 2
- 241000589500 Thermus aquaticus Species 0.000 claims 2
- 241000589499 Thermus thermophilus Species 0.000 claims 2
- 239000012062 aqueous buffer Substances 0.000 claims 2
- 229910052739 hydrogen Inorganic materials 0.000 claims 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 2
- 239000001257 hydrogen Substances 0.000 claims 2
- 125000004435 hydrogen atoms Chemical group [H]* 0.000 claims 2
- 230000002779 inactivation Effects 0.000 claims 2
- GVJRTUUUJYMTNQ-UHFFFAOYSA-N 2-(2,5-dioxofuran-3-yl)acetic acid Chemical compound OC(=O)CC1=CC(=O)OC1=O GVJRTUUUJYMTNQ-UHFFFAOYSA-N 0.000 claims 1
- MFGALGYVFGDXIX-UHFFFAOYSA-N 3,4-dimethylfuran-2,5-dione Chemical compound CC1=C(C)C(=O)OC1=O MFGALGYVFGDXIX-UHFFFAOYSA-N 0.000 claims 1
- HMMBJOWWRLZEMI-UHFFFAOYSA-N 4,5,6,7-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1CCCC2=C1C(=O)OC2=O HMMBJOWWRLZEMI-UHFFFAOYSA-N 0.000 claims 1
- 102000003960 Ligases Human genes 0.000 claims 1
- 108090000364 Ligases Proteins 0.000 claims 1
- 241000208202 Linaceae Species 0.000 claims 1
- 235000004431 Linum usitatissimum Nutrition 0.000 claims 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N Maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims 1
- 241000204666 Thermotoga maritima Species 0.000 claims 1
- 230000001580 bacterial Effects 0.000 claims 1
- 230000024881 catalytic activity Effects 0.000 claims 1
- 238000007385 chemical modification Methods 0.000 claims 1
- 230000000295 complement Effects 0.000 claims 1
- 239000011541 reaction mixture Substances 0.000 claims 1
- 241000894007 species Species 0.000 claims 1
- 238000003786 synthesis reaction Methods 0.000 claims 1
- 230000002194 synthesizing Effects 0.000 claims 1
Claims (14)
1. Термостабильный фермент, который обратимо инактивируют путем химической модификации, отличающийся тем, что инкубация химически модифицированного термостабильного фермента в водном буфере при щелочном значении pH при температуре ниже приблизительно 25oС не приводит к существенному увеличению ферментативной активности в течение промежутка времени менее приблизительно 20 мин и где инкубация химически модифицированного фермента в водном буфере, значение рН которого доведено до приблизительно 8-9 при 25oС, при температуре выше приблизительно 50oС приводит по крайней мере к двукратному увеличению ферментативной активности в течение промежутка времени менее приблизительно 20 мин.
2. Химически модифицированный термостабильный фермент по п. 1, где ферментативная активность является активностью термостабильной ДНК-полимеразы или активностью термостабильной лигазы.
3. Химически модифицированный термостабильный фермент по п. 1, где ферментативная активность является активностью термостабильной ДНК-полимеразы и что термостабильная ДНК-полимераза происходит из видов бактерий, выбранных из группы родов, состоящей из Thermus aguaticus, Thermus thermophilus и Thermotoga maritima.
4. Химически модифицированный термостабильный фермент по любому из пп. 1-3, который получают путем реакции смеси термостабильного фермента с модифицирующим реагентом.
5. Химически модифицированный термостабильный фермент по любому из пп. 1-3, который получают путем реакции смеси термостабильного фермента с модифицирующим реагентом, где реакцию проводят при щелочном значении рН при температуре ниже приблизительно 25oС, где реагентом является ангидрид дикарбоновой кислоты общей формулы:
где R1 и R2 обозначают водород или органические радикалы, которые могут быть связаны, или общей формулы:
где R1 и R2 обозначают органические радикалы, которые предпочтительно связаны, и атомы водорода находятся в цис-положении, и где реакция приводит к практически полной инактивации ферментативной активности.
где R1 и R2 обозначают водород или органические радикалы, которые могут быть связаны, или общей формулы:
где R1 и R2 обозначают органические радикалы, которые предпочтительно связаны, и атомы водорода находятся в цис-положении, и где реакция приводит к практически полной инактивации ферментативной активности.
6. Химически модифицированный термостабильный фермент по любому из пп. 1-3, который получают путем реакции смеси термостабильного фермента с модифицирующим реагентом, где указанный модифицирующий реагент выбирают из группы, включающей малеиновый ангидрид, экзо-цис-3,6-эндоксо-Δ4-тетрагидрофталевый ангидрид, цитраконовый ангидрид, 3,4,5,6-тетрагидрофталевый ангидрид, цис-аконитовый ангидрид и 2,3-диметилмалеиновый ангидрид.
7. Химически модифицированный термостабильный фермент по любому из пп. 1-6, который получают путем реакции смеси термостабильного фермента с модифицирующим реагентом, где указанный модифицирующий реагент используют более чем в 20-кратном молярном избытке по отношению к термостабильному ферменту.
8. Химически модифицированный термостабильный фермент по любому из пп. 1-7, который получают путем реакции смеси термостабильного фермента с модифицирующим реагентом, где термостабильным ферментом является термостабильная ДНК-полимераза, происходящая из Thermus aguaticus, и где модифицирующим реагентом является цитраконовый ангидрид.
9. Химически модифицированный термостабильный фермент по любому из п.п. 1-7, который получают путем реакции смеси термостабильного фермента с модифицирующим реагентом, где термостабильным ферментом является термостабильная ДНК-полимераза, происходящая из Thermus thermophilus, и где модифицирующим реагентом является цис-аконитовый ангидрид.
10. Способ получения химически модифицированного термостабильного фермента, который обратимо инактивируют, включающий взаимодействие смеси термостабильного фермента с модифицирующим реагентом, где реакцию проводят при щелочном значении рН при температуре ниже приблизительно 25oС, где реагентом является ангидрид дикарбоновой кислоты общей формулы:
где R1 и R2 обозначают водород или органические радикалы, которые могут быть связаны, или общей формулы:
где R1 и R2 обозначают органические радикалы, которые предпочтительно связаны, и атомы водорода находятся в цис-положении, и где реакция приводит к практически полной инактивации ферментативной активности.
где R1 и R2 обозначают водород или органические радикалы, которые могут быть связаны, или общей формулы:
где R1 и R2 обозначают органические радикалы, которые предпочтительно связаны, и атомы водорода находятся в цис-положении, и где реакция приводит к практически полной инактивации ферментативной активности.
11. Способ амплификации, содержащейся в образце нуклеиновой кислоты-мишени, включающий следующие стадии: (а) введение образца в контакт с реакционной смесью для амплификации, содержащей праймер, комплементарный нуклеиновой кислоте-мишени, и химически модифицированный термостабильный фермент по любому из пп. 1-9, и (б) инкубацию образовавшейся на стадии (а) смеси при температуре выше приблизительно 50oС в течение промежутка времени, достаточного для реактивации химически модифицированного термостабильного фермента и позволяющего образовать продукты удлинения праймера.
12. Амплификация путем полимеразной реакции синтеза цепи смеси, содержащей пару праймеров и химически модифицированный термостабильный фермент по любому из пп. 1-9.
13. Набор для проведения полимеразной реакции синтеза цепи, содержащий химически модифицированный термостабильный фермент по любому из пп. 1-9.
14. Изобретение, как оно описано выше.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US267395P | 1995-08-25 | 1995-08-25 | |
US60/002.673 | 1995-08-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
RU96116815A true RU96116815A (ru) | 1998-11-20 |
RU2174556C2 RU2174556C2 (ru) | 2001-10-10 |
Family
ID=21701916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU96116815/13A RU2174556C2 (ru) | 1995-08-25 | 1996-08-23 | Химически модифицированный термостабильный фермент, способ его получения, способ амплификации содержащейся в образце нуклеиновой кислоты, реакционная смесь для его осуществления и набор для проведения цепной реакции |
Country Status (19)
Country | Link |
---|---|
US (2) | US5773258A (ru) |
EP (1) | EP0771870B1 (ru) |
JP (1) | JP3026554B2 (ru) |
KR (1) | KR100221097B1 (ru) |
CN (1) | CN1282741C (ru) |
AT (1) | ATE176499T1 (ru) |
AU (1) | AU689047B2 (ru) |
BR (1) | BR9603563A (ru) |
CA (1) | CA2184105C (ru) |
CZ (1) | CZ289237B6 (ru) |
DE (2) | DE771870T1 (ru) |
DK (1) | DK0771870T3 (ru) |
ES (1) | ES2101668T3 (ru) |
HU (1) | HU221750B1 (ru) |
IL (1) | IL119088A (ru) |
MX (1) | MX9603608A (ru) |
NO (1) | NO323552B1 (ru) |
PL (1) | PL185711B1 (ru) |
RU (1) | RU2174556C2 (ru) |
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- 1996-07-11 US US08/680,283 patent/US5773258A/en not_active Expired - Lifetime
- 1996-07-19 US US08/684,108 patent/US5677152A/en not_active Expired - Lifetime
- 1996-08-17 AT AT96113222T patent/ATE176499T1/de active
- 1996-08-17 ES ES96113222T patent/ES2101668T3/es not_active Expired - Lifetime
- 1996-08-17 EP EP96113222A patent/EP0771870B1/en not_active Expired - Lifetime
- 1996-08-17 DE DE0771870T patent/DE771870T1/de active Pending
- 1996-08-17 DK DK96113222T patent/DK0771870T3/da active
- 1996-08-17 DE DE69601488T patent/DE69601488T2/de not_active Expired - Lifetime
- 1996-08-19 IL IL11908896A patent/IL119088A/xx not_active IP Right Cessation
- 1996-08-21 HU HU9602289A patent/HU221750B1/hu not_active IP Right Cessation
- 1996-08-21 AU AU62179/96A patent/AU689047B2/en not_active Expired
- 1996-08-23 CZ CZ19962495A patent/CZ289237B6/cs not_active IP Right Cessation
- 1996-08-23 RU RU96116815/13A patent/RU2174556C2/ru active
- 1996-08-23 NO NO19963541A patent/NO323552B1/no not_active IP Right Cessation
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- 1996-08-23 CA CA002184105A patent/CA2184105C/en not_active Expired - Lifetime
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- 1996-08-24 KR KR1019960035291A patent/KR100221097B1/ko not_active IP Right Cessation
- 1996-08-25 CN CNB961132191A patent/CN1282741C/zh not_active Expired - Lifetime
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