Nucleotide transient binding for sequencing methods
First Claim
1. A method for identifying a nucleotide bound to a polymerase, comprising:
- a) transiently binding in a template-dependent manner, and without polymerizing, a first type of nucleotide to a first polymerase in the presence of a divalent cation that inhibits nucleotide incorporation by the first polymerase,wherein the first polymerase is included in a first immobilized complex comprising (i) the first polymerase, (ii) a first template nucleic acid molecule, and (iii) a first polymerization initiation site,wherein the first immobilized complex is linked to a first site on a surface and the surface includes a plurality of immobilized complexes linked to other sites on the same surface wherein the first polymerase comprises the amino acid sequence of SEQ ID NO;
5 wherein the first polymerase lacks exonuclease activity, andwherein the first type of nucleotide includes a detectable moiety;
b) detecting the first type of transiently-bound nucleotide; and
c) identifying the first type of transiently-bound nucleotide.
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Accused Products
Abstract
Provided herein are compositions and systems for use in polymerase-dependent, nucleotide transient-binding methods. The methods are useful for deducing the sequence of a template nucleic acid molecule and single nucleotide polymorphism (SNP) analyses. The methods rely on the fact that the polymerase transient-binding time for a complementary nucleotide is longer compared to that of a non-complementary nucleotide. The labeled nucleotides transiently-binds the polymerase in a template-dependent manner, but does not incorporate. The methods are conducted under any reaction condition that permits transient binding of a complementary or non-complementary nucleotide to a polymerase, and inhibits nucleotide incorporation.
69 Citations
16 Claims
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1. A method for identifying a nucleotide bound to a polymerase, comprising:
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a) transiently binding in a template-dependent manner, and without polymerizing, a first type of nucleotide to a first polymerase in the presence of a divalent cation that inhibits nucleotide incorporation by the first polymerase, wherein the first polymerase is included in a first immobilized complex comprising (i) the first polymerase, (ii) a first template nucleic acid molecule, and (iii) a first polymerization initiation site, wherein the first immobilized complex is linked to a first site on a surface and the surface includes a plurality of immobilized complexes linked to other sites on the same surface wherein the first polymerase comprises the amino acid sequence of SEQ ID NO;
5 wherein the first polymerase lacks exonuclease activity, andwherein the first type of nucleotide includes a detectable moiety; b) detecting the first type of transiently-bound nucleotide; and c) identifying the first type of transiently-bound nucleotide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification