High fidelity DNA polymerase compositions and uses therefor
First Claim
Patent Images
1. An enzyme mixture comprising a first enzyme and a second enzyme, wherein said first enzyme comprises 5′
- -3′
polymerization activity of a DNA polymerase or reverse transcriptase, and said second enzyme is a mutant of a wild type DNA polymerase, said wild type DNA polymerase comprising the partitioning domain sequence YXGG (SEQ ID NO;
6), the polymerase domain sequence DXXSLYP (SEQ ID NO;
1) or DFRALYP (SEQ ID NO;
13), the polymerase domain sequence YXDTDS (SEQ ID NO;
4), YIDTDG (SEQ ID NO;
15), YADTDG (SEQ ID NO;
16), or YSDTDG (SEQ ID NO;
17), and the polymerase domain sequence KXY, wherein said second enzyme comprises an amino acid substitution at an amino acid position corresponding to G387 of SEQ ID NO;
19, and wherein said second enzyme comprises 3′
-5′
exonuclease activity and reduced 5′
-3′
DNA polymerization activity as compared to the wild type DNA polymerase.
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Abstract
The subject invention relates to compositions comprising an enzyme mixture which comprises a first enzyme and a second enzyme, where the first enzyme comprises a DNA polymerization activity and the second enzyme comprises an 3′-5′ exonuclease activity and a reduced DNA polymerization activity. The invention also relates to the above compositions in kit format and methods for high fidelity DNA synthesis using the subject compositions of the invention.
50 Citations
50 Claims
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1. An enzyme mixture comprising a first enzyme and a second enzyme, wherein said first enzyme comprises 5′
- -3′
polymerization activity of a DNA polymerase or reverse transcriptase, and said second enzyme is a mutant of a wild type DNA polymerase, said wild type DNA polymerase comprising the partitioning domain sequence YXGG (SEQ ID NO;
6), the polymerase domain sequence DXXSLYP (SEQ ID NO;
1) or DFRALYP (SEQ ID NO;
13), the polymerase domain sequence YXDTDS (SEQ ID NO;
4), YIDTDG (SEQ ID NO;
15), YADTDG (SEQ ID NO;
16), or YSDTDG (SEQ ID NO;
17), and the polymerase domain sequence KXY, wherein said second enzyme comprises an amino acid substitution at an amino acid position corresponding to G387 of SEQ ID NO;
19, and wherein said second enzyme comprises 3′
-5′
exonuclease activity and reduced 5′
-3′
DNA polymerization activity as compared to the wild type DNA polymerase. - View Dependent Claims (2, 3, 4, 5, 6, 7, 18, 20, 23, 24, 25, 26, 27, 28, 29, 30, 39, 40, 43, 44, 47, 48)
- -3′
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8. An enzyme mixture comprising three or more enzymes, wherein at least one enzyme in said enzyme mixture is a mutant of a wild type DNA polymerase, said wild type DNA polymerase comprising the partitioning domain sequence YXGG (SEQ ID NO:
- 6), the polymerase domain sequence DXXSLYP (SEQ ID NO;
1) or DFRALYP (SEQ ID NO;
13), the polymerase domain sequence YXDTDS (SEQ ID NO;
4), YIDTDG (SEQ ID NO;
15), YADTDG (SEQ ID NO;
16), or YSDTDG (SEQ ID NO;
17), and the polymerase domain sequence KXY, wherein said mutant DNA polymerase comprises 3′
-5′
exonuclease activity and a reduced DNA polymerization activity as compared to the wild type DNA polymerase, and wherein said mutant DNA polymerase comprises an amino acid substitution at an amino acid position corresponding to G387 of SEQ ID NO;
19. - View Dependent Claims (9, 10, 11, 21)
- 6), the polymerase domain sequence DXXSLYP (SEQ ID NO;
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12. A kit comprising a first enzyme, a second enzyme, and packaging material therefor, wherein said first enzyme is a DNA polymerase or reverse transcriptase comprising 5′
- -3′
polymerization activity of a DNA polymerase or reverse transcriptase, said second enzyme is a mutant of a wild type DNA polymerase, said wild type DNA polymerase comprising the partitioning domain sequence YXGG (SEQ ID NO;
6), the polymerase domain sequence DXXSLYP (SEQ ID NO;
1) or DFRALYP (SEQ ID NO;
13), the polymerase domain sequence YXDTDS (SEQ ID NO;
4), YIDTDG (SEQ ID NO;
15), YADTDG (SEQ ID NO;
16), or YSDTDG (SEQ ID NO;
17), and the polymerase domain sequence KXY, wherein said second enzyme comprises an amino acid substitution at an amino acid position corresponding to G387 of SEQ ID NO;
19 and wherein said second enzyme comprises 3′
-5′
exonuclease activity and a reduced DNA polymerization activity as compared to the wild type DNA polymerase. - View Dependent Claims (13, 14, 15, 16, 17, 19, 22, 31, 32, 33, 34, 35, 36, 37, 38, 41, 42, 45, 46, 49, 50)
- -3′
Specification