HIGH THROUGHPUT DNA SEQUENCING METHOD AND APPARATUS
First Claim
Patent Images
1. A method for sequencing a nucleic acid molecule, comprising:
- (a) providing a sequencer, comprising;
(i) a reservoir; and
,(ii) a microfluidic flow cell, comprising;
a flow chamber, comprising;
a planar imagable area; and
,a plurality of beads immobilized onto the planar imagable area;
wherein;
the plurality of reservoirs is fluidly connected to the flow cell; and
,a substantial portion of the beads, further comprise;
a plurality of nucleic acid primers attached thereto, wherein the nucleic acid primers present on an individual bead are homogeneous;
(b) contacting the target nucleic acid molecule with said beads and pyrophosphate sequencing reagents, comprising;
a nucleotide triphosphate;
a polymerase;
a pyrophosphate to ATP converting enzyme; and
,an ATP detecting enzyme; and
(c) detecting the resulting optical signals, wherein each optical signal is indicative of a reaction of pyrophosphate sequencing reagents with a target nucleic acid molecule on a bead, thereby sequencing the nucleic acid.
4 Assignments
0 Petitions
Accused Products
Abstract
The present invention relates to a method for high throughput nucleic acid sequencing using a multi-bead flow cell and pyrophosphate sequencing, a sequencer capable of performing this method, and a kit of the pyrophosphate sequencing reagents.
14 Citations
27 Claims
-
1. A method for sequencing a nucleic acid molecule, comprising:
-
(a) providing a sequencer, comprising; (i) a reservoir; and
,(ii) a microfluidic flow cell, comprising;
a flow chamber, comprising;a planar imagable area; and
,a plurality of beads immobilized onto the planar imagable area; wherein; the plurality of reservoirs is fluidly connected to the flow cell; and
,a substantial portion of the beads, further comprise;
a plurality of nucleic acid primers attached thereto, wherein the nucleic acid primers present on an individual bead are homogeneous;(b) contacting the target nucleic acid molecule with said beads and pyrophosphate sequencing reagents, comprising; a nucleotide triphosphate; a polymerase; a pyrophosphate to ATP converting enzyme; and
,an ATP detecting enzyme; and (c) detecting the resulting optical signals, wherein each optical signal is indicative of a reaction of pyrophosphate sequencing reagents with a target nucleic acid molecule on a bead, thereby sequencing the nucleic acid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
-
-
26. A sequencer for sequencing a target nucleic acid molecule, comprising:
-
(i) a reservoir; and
,(ii) a microfluidic flow cell, comprising;
a flow chamber comprising;a planar imagable area; and
,a plurality of beads immobilized onto the planar imagable area; wherein; the plurality of reservoirs is fluidly connected to the flow cell; and
,a substantial portion of the beads further comprise;
a plurality of nucleic acid molecules attached thereto, wherein the nucleic acid molecules present on an individual bead are homogeneous;
-
-
27. A kit for sequencing a nucleic acid molecule, comprising:
-
a. a polymerase; b. a pyrophosphate to ATP converting enzyme; c. an ATP detecting enzyme; d. nucleotides, or optionally nucleotide analogues, optionally including, in place of dATP, a dATP analogue which is capable of acting as a substrate for a polymerase but incapable of acting as a substrate for a said pyrophosphate to ATP converting enzyme; e. optionally dideoxynucleotides, or optionally dideoxynucleotide analogues, optionally ddATP being replaced by a ddATP analogue which is capable of acting as a substrate for a polymerase but incapable of acting as a substrate for a said PPi-detection enzyme; f. optionally deoxynucleotides or dideoxynucleotides capped on the 3′
side with a 2-nitrobenzyl moiety to prevent successive incorporation of nucleotide in homopolymeric regions of DNA sequence.
-
Specification