Method of preparation of nanopore and uses thereof
First Claim
1. A method for nucleic acid sequencing, the method comprising providing an array of individually addressable sites, each site having a nanopore coupled to a nucleic acid polymerase, wherein the polymerase is attached to said nanopore within 0.7 nm of the entrance to said nanopore, and, at a given site of said array, polymerizing tagged nucleotides with the polymerase, wherein each tagged nucleotide comprises a tag capable of being cleaved in a nucleotide polymerization event and detected with the aid of the nanopore, wherein the tag is released and detected by the nanopore at said given site, wherein the nanopore is inserted into solvent-free planar lipid bilayer membranes, wherein the nucleotide sequence of a single-stranded DNA is determined, and comprises:
- a) contacting the single-stranded DNA, wherein the single-stranded DNA is in an electrolyte solution and wherein the single-stranded DNA has a primer hybridized to a portion thereof, with;
(I) a nanopore of said array of individually addressable sites,wherein the nanopore is an individually addressable nanopore in a membrane,and(II) at least four of said tagged nucleotides,wherein each tagged nucleotide is a deoxyribonucleotide polyphosphate (dNPP) analogue,under conditions permitting the polymerase to catalyze incorporation of one of the dNPP analogues into the primer if it is complementary to the nucleotide residue of the single-stranded DNA which is immediately 5′
to a nucleotide residue of the single-stranded DNA hybridized to the 3′
terminal nucleotide residue of the primer, so as to form a DNA extension product, wherein each of the four dNPP analogues has the structure;
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Abstract
This disclosure provides systems and methods for sequencing nucleic acids using nucleotide analogues and translocation of tags from incorporated nucleotide analogues through a nanopore. In aspects, this disclosure is related to composition, method, and system for sequencing a nucleic acid using tag molecules and detection of translocation through a nanopore of tags released from incorporation of the molecule.
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Citations
20 Claims
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1. A method for nucleic acid sequencing, the method comprising providing an array of individually addressable sites, each site having a nanopore coupled to a nucleic acid polymerase, wherein the polymerase is attached to said nanopore within 0.7 nm of the entrance to said nanopore, and, at a given site of said array, polymerizing tagged nucleotides with the polymerase, wherein each tagged nucleotide comprises a tag capable of being cleaved in a nucleotide polymerization event and detected with the aid of the nanopore, wherein the tag is released and detected by the nanopore at said given site, wherein the nanopore is inserted into solvent-free planar lipid bilayer membranes, wherein the nucleotide sequence of a single-stranded DNA is determined, and comprises:
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a) contacting the single-stranded DNA, wherein the single-stranded DNA is in an electrolyte solution and wherein the single-stranded DNA has a primer hybridized to a portion thereof, with; (I) a nanopore of said array of individually addressable sites, wherein the nanopore is an individually addressable nanopore in a membrane, and (II) at least four of said tagged nucleotides, wherein each tagged nucleotide is a deoxyribonucleotide polyphosphate (dNPP) analogue, under conditions permitting the polymerase to catalyze incorporation of one of the dNPP analogues into the primer if it is complementary to the nucleotide residue of the single-stranded DNA which is immediately 5′
to a nucleotide residue of the single-stranded DNA hybridized to the 3′
terminal nucleotide residue of the primer, so as to form a DNA extension product, wherein each of the four dNPP analogues has the structure; - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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- 19. A method for sequencing a nucleic acid template, the method comprising providing an array of individually addressable sites, each site having a nanopore coupled to a nucleic acid polymerase, wherein the polymerase is attached to said nanopore within 0.7 nm of the entrance to said nanopore, and, at a given site of said array, polymerizing tagged nucleotides with the polymerase, wherein each tagged nucleotide comprises a tag capable of being cleaved in a nucleotide polymerization event and detected with the aid of the nanopore, wherein the tag is released and detected by the nanopore at said given site, wherein the nanopore is inserted into solvent-free planar lipid bilayer membranes, wherein alkaline phosphatase molecules are covalently attached adjacent to the polymerase at the rim of each nanopore, wherein the template is added along with a primer to form a loop, thereby determine the nucleic acid sequence.
Specification