Polymerases for nucleotide analogue incorporation
First Claim
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1. A composition comprising a recombinant DNA polymerase, which recombinant polymerase comprises an amino acid sequence that is at least 80% identical to SEQ ID NO:
- 1 and comprises an amino acid substitution at position 375 and an amino acid substitution at position 512, wherein numbering of positions is relative to SEQ ID NO;
1, wherein the recombinant polymerase exhibits polymerase activity; and
a nucleotide analogue that is labeled on a phosphate group, wherein the base moiety of the analogue is selected from the group consisting of adenine, thymine, guanine, and cytidine.
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Abstract
Compositions that include polymerases with features for improving entry of nucleotide analogues into active site regions and for coordinating with the nucleotide analogues in the active site region are provided. Methods of making the polymerases and of using the polymerases in sequencing and DNA replication and amplification as well as kinetic models of polymerase activity and computer-implemented methods of using the models are also provided.
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21 Claims
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1. A composition comprising a recombinant DNA polymerase, which recombinant polymerase comprises an amino acid sequence that is at least 80% identical to SEQ ID NO:
- 1 and comprises an amino acid substitution at position 375 and an amino acid substitution at position 512, wherein numbering of positions is relative to SEQ ID NO;
1, wherein the recombinant polymerase exhibits polymerase activity; anda nucleotide analogue that is labeled on a phosphate group, wherein the base moiety of the analogue is selected from the group consisting of adenine, thymine, guanine, and cytidine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
- 1 and comprises an amino acid substitution at position 375 and an amino acid substitution at position 512, wherein numbering of positions is relative to SEQ ID NO;
Specification