Method for sequencing a polynucleotide template
First Claim
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1. A method for sequencing, the method comprising:
- (a) providing a single-stranded polynucleotide immobilized on a planar support, wherein the single-stranded polynucleotide comprises;
a first region of known sequence;
a first template region;
a second region of known sequence, wherein the first template region is between the first region of known sequence and the second region of known sequence;
a second template region; and
a third region of known sequence, wherein the second template region is between the second region of known sequence and the third region of known sequence;
(b) hybridizing a first primer to the first region of known sequence in the single-stranded polynucleotide immobilized on the planar support;
(c) extending the first primer to form a first extended primer hybridized to the single-stranded polynucleotide, wherein the first extended primer comprises a fluorescent label;
(d) detecting fluorescence emitted from the fluorescent label in the first extended primer while the first extended primer is hybridized to the single-stranded polynucleotide immobilized on the planar support;
(e) denaturing the first extended primer from the single-stranded polynucleotide;
(f) hybridizing a second primer to the second region of known sequence in the single-stranded polynucleotide immobilized on the planar support, wherein the second primer is hybridized to the single-stranded polynucleotide after denaturing the first extended primer from the single-stranded polynucleotide;
(g) extending the second primer to form a second extended primer hybridized to the single-stranded polynucleotide immobilized on the planar support, wherein the second extended primer comprises a fluorescent label; and
(h) detecting fluorescence emitted from the fluorescent label in the second extended primer while the second extended primer is hybridized to the single-stranded polynucleotide.
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Abstract
The invention provides methods for pairwise sequencing of a double-stranded polynucleotide template, which methods result in the sequential determination of nucleotide sequences in two distinct and separate regions of the polynucleotide template.
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Citations
18 Claims
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1. A method for sequencing, the method comprising:
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(a) providing a single-stranded polynucleotide immobilized on a planar support, wherein the single-stranded polynucleotide comprises; a first region of known sequence; a first template region; a second region of known sequence, wherein the first template region is between the first region of known sequence and the second region of known sequence; a second template region; and a third region of known sequence, wherein the second template region is between the second region of known sequence and the third region of known sequence; (b) hybridizing a first primer to the first region of known sequence in the single-stranded polynucleotide immobilized on the planar support; (c) extending the first primer to form a first extended primer hybridized to the single-stranded polynucleotide, wherein the first extended primer comprises a fluorescent label; (d) detecting fluorescence emitted from the fluorescent label in the first extended primer while the first extended primer is hybridized to the single-stranded polynucleotide immobilized on the planar support; (e) denaturing the first extended primer from the single-stranded polynucleotide; (f) hybridizing a second primer to the second region of known sequence in the single-stranded polynucleotide immobilized on the planar support, wherein the second primer is hybridized to the single-stranded polynucleotide after denaturing the first extended primer from the single-stranded polynucleotide; (g) extending the second primer to form a second extended primer hybridized to the single-stranded polynucleotide immobilized on the planar support, wherein the second extended primer comprises a fluorescent label; and (h) detecting fluorescence emitted from the fluorescent label in the second extended primer while the second extended primer is hybridized to the single-stranded polynucleotide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification