RU2221866C2 - Purified dna polymerase, recombinant dna polymerase, methods for their preparing, isolated dna sequence and set for polymerase chain reaction - Google Patents

Purified dna polymerase, recombinant dna polymerase, methods for their preparing, isolated dna sequence and set for polymerase chain reaction Download PDF

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RU2221866C2
RU2221866C2 RU98121521/13A RU98121521A RU2221866C2 RU 2221866 C2 RU2221866 C2 RU 2221866C2 RU 98121521/13 A RU98121521/13 A RU 98121521/13A RU 98121521 A RU98121521 A RU 98121521A RU 2221866 C2 RU2221866 C2 RU 2221866C2
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Russia
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dna polymerase
activity
polymerase
reverse transcriptase
exonuclease
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RU98121521/13A
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Russian (ru)
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RU98121521A (en
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Вальтрауд АНКЕНБАУЕР (DE)
Вальтрауд Анкенбауер
Урсула МАРКАУ (DE)
Урсула Маркау
Кристине ЭБЕНБИХЛЕР (DE)
Кристине Эбенбихлер
Гунтар АХХАММЕР (DE)
Гунтар Аххаммер
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Роше Диагностикс Гмбх
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/52Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

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Abstract

FIELD: biotechnology, molecular biology, biochemistry, enzymology. SUBSTANCE: invention relates to modified DNA polymerase. Invention claims the purified DNA polymerase eliciting activity of reverse transcriptase in the presence of magnesium ions and/or manganese ions and eliciting the reduced activity of 5'-3'-exonuclease and no eliciting activity of ribonuclease H and preparing from Carboxydothermus hydrogenoformans. Amino acid and nucleotide sequences are given in the description. Thermophilic DNA polymerase is a component of set using for carrying out polymerase chain reaction (PCR) with RNA reverse transcription. Invention provides preparing reverse transcriptase acting at high temperatures and providing producing DNA without deletions. EFFECT: improved preparing methods, valuable biological and biochemical properties of enzyme. 10 cl, 7 dwg, 3 ex

Description

Текст описания в факсимильном виде (см. графический материал) Description text in facsimile form (see graphic material)

Claims (10)

1. Очищенная ДНК-полимераза, проявляющая активность обратной транскриптазы в присутствии ионов магния и/или ионов марганца, обладающая пониженной активностью 5’-3’-экзонуклеазы или ее отсутствием и по существу не обладающая активностью рибонуклеазы Н и получаемая из Carboxydothermus hydrogenoformans, и где указанная полимераза имеет кажущуюся молекулярную массу между 64 и 71 кД, определенную методом электрофореза в полиакриламидном геле с додецилсульфатом натрия (SDS), и содержащая аминокислотную последовательность SEQ ID No: 11.1. Purified DNA polymerase, exhibiting reverse transcriptase activity in the presence of magnesium ions and / or manganese ions, having reduced or absent 5'-3'-exonuclease activity and essentially no ribonuclease H activity and obtained from Carboxydothermus hydrogenoformans, and where said polymerase has an apparent molecular weight of between 64 and 71 kDa, determined by polyacrylamide gel electrophoresis with sodium dodecyl sulfate (SDS), and containing the amino acid sequence of SEQ ID No: 11. 2. ДНК-полимераза по п.1, отличающаяся тем, что указанная ДНК-полимераза проявляет активность обратной транскриптазы при практическом отсутствии ионов марганца.2. DNA polymerase according to claim 1, characterized in that said DNA polymerase exhibits reverse transcriptase activity in the practical absence of manganese ions. 3. ДНК-полимераза по п.1 или 2, отличающаяся тем, что указанная полимераза проявляет активность обратной транскриптазы, зависимую от марганца.3. DNA polymerase according to claim 1 or 2, characterized in that said polymerase exhibits manganese-dependent reverse transcriptase activity. 4. ДНК-полимераза по любому из пп.1-3, отличающаяся тем, что активность обратной транскриптазы, зависимая от магния, выше активности обратной транскриптазы указанной полимеразы, зависимой от марганца.4. DNA polymerase according to any one of claims 1 to 3, characterized in that the activity of reverse transcriptase, dependent on magnesium, is higher than the activity of reverse transcriptase of the indicated polymerase, dependent on manganese. 5. ДНК-полимераза по любому из пп.1-4, отличающаяся тем, что указанная полимераза обладает пониженной активностью 5’-3’-экзонуклеазы или ее отсутствием, при этом последнюю получают из природной полимеразы, обладающей активностью 5’-3’-экзонуклеазы.5. DNA polymerase according to any one of claims 1 to 4, characterized in that said polymerase has reduced activity of 5'-3'-exonuclease or its absence, the latter being obtained from a natural polymerase having activity 5'-3'- exonuclease. 6. Рекомбинантная ДНК-полимераза, проявляющая активность обратной транскриптазы в присутствии ионов магния и/или ионов марганца, обладающая пониженной активностью 5’-3’-экзонуклеазы или ее отсутствием и по существу не обладающая активностью рибонуклеазы Н и где указанная полимераза имеет кажущуюся молекулярную массу между 64 и 71 кД, определенную методом электрофореза в полиакриламидном геле с додецилсульфатом натрия (SDS), и содержащая аминокислотную последовательность SEQ ID No: 11, где указанную полимеразу получают из штамма Е. coli, обозначенного как Е. coli GA 1.6. Recombinant DNA polymerase exhibiting reverse transcriptase activity in the presence of magnesium ions and / or manganese ions, having reduced or absent activity of 5'-3'-exonuclease, and essentially not having ribonuclease H activity, and wherein said polymerase has an apparent molecular weight between 64 and 71 kDa, determined by polyacrylamide gel electrophoresis with sodium dodecyl sulfate (SDS), and containing the amino acid sequence of SEQ ID No: 11, where this polymerase is obtained from E. coli strain, is indicated much like E. coli GA 1. 7. Выделенная последовательность ДНК, кодирующая ДНК-полимеразу по любому из пп.1-6, включающая нуклеотидную последовательность SEQ ID No: 10.7. The selected DNA sequence encoding a DNA polymerase according to any one of claims 1 to 6, including the nucleotide sequence of SEQ ID No: 10. 8. Способ получения ДНК-полимеразы по любому из пп.1-5, включающий стадии (а) культивирования природного штамма Carboxydothermus hydrogenoformans; (b) суспендирования клеток природного штамма в буфере; (с) разрушения клеток; (d) очистки ДНК-полимеразы хроматографическими способами, включая использование одной или нескольких сефарозных колонок.8. A method for producing a DNA polymerase according to any one of claims 1 to 5, comprising the steps of (a) culturing a natural strain of Carboxydothermus hydrogenoformans; (b) suspending cells of a natural strain in a buffer; (c) cell destruction; (d) purifying the DNA polymerase by chromatographic methods, including the use of one or more sepharose columns. 9. Способ получения ДНК-полимеразы по п.6, включающий культивирование рекомбинантного штамма Е. coli, трансформированного вектором, содержащим нуклеотидную последовательность SEQ ID No: 10, очистку и выделение ДНК-полимеразы.9. The method of producing DNA polymerase according to claim 6, comprising culturing a recombinant E. coli strain transformed with a vector containing the nucleotide sequence of SEQ ID No: 10, purification and isolation of DNA polymerase. 10. Набор для осуществления полимеразной цепной реакции с обратной транскрипцией PHK (RT-PCR), где набор содержит термофильную ДНК-полимеразу по любому из пп.1-6 и другие традиционные дополнительные компоненты для осуществления RT-PCR.10. Kit for the implementation of polymerase chain reaction with reverse transcription PHK (RT-PCR), where the kit contains a thermophilic DNA polymerase according to any one of claims 1 to 6 and other traditional additional components for the implementation of RT-PCR.
RU98121521/13A 1997-12-02 1998-11-30 Purified dna polymerase, recombinant dna polymerase, methods for their preparing, isolated dna sequence and set for polymerase chain reaction RU2221866C2 (en)

Applications Claiming Priority (2)

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EP97121151.1 1997-12-02
EP97121151A EP0921196A1 (en) 1997-12-02 1997-12-02 Modified DNA-polymerase from carboxydothermus hydrogenoformans and its use for coupled reverse transcription and polymerase chain reaction

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RU2221866C2 true RU2221866C2 (en) 2004-01-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111662893A (en) * 2020-07-01 2020-09-15 济南国科医工科技发展有限公司 Preparation method of molecular diagnostic enzyme preparation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PERLER F.В. et al. thermostable DNA polymerases. Advances in protein chemistry,1996, vol.48, р.377-435. МАНИАТИС Г. и др. Методы генетической инженерии. - М.: Мир, 1984, с. 241-244. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111662893A (en) * 2020-07-01 2020-09-15 济南国科医工科技发展有限公司 Preparation method of molecular diagnostic enzyme preparation

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CA2252968C (en) 2008-11-18

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