Methods for Sequencing DNA
First Claim
1. An array comprising a plurality of beads and a solid support, wherein each bead comprises oligonucleotides immobilized on the surface of the bead, and wherein each bead is connected to the solid support by at least one molecule on the bead which can bind to a corresponding molecule on a surface of the solid support.
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Accused Products
Abstract
The invention is directed to methods for using sequence by ligation to sequence DNA immobilized on miniaturized, high density bead-based arrays. Methods are provided to fabricate an array of beads where the beads are coupled directly to a solid support. Methods are also provided to improve signal and reduce background in ligation-mediated DNA sequencing. In addition, methods are provided to improve the accuracy of reported tag counts when performing DNA sequencing by fluorescent nonamer ligation.
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Citations
28 Claims
- 1. An array comprising a plurality of beads and a solid support, wherein each bead comprises oligonucleotides immobilized on the surface of the bead, and wherein each bead is connected to the solid support by at least one molecule on the bead which can bind to a corresponding molecule on a surface of the solid support.
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10. A method for producing an array comprising the steps of:
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a) providing a plurality of beads, wherein each bead comprises oligonucleotides immobilized on the surface of the bead, b) providing a solid support; c) connecting the plurality of beads to the solid support by binding at least one molecule on a bead to a corresponding molecule on a surface of the solid support. - View Dependent Claims (11, 12, 13)
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14. A method for DNA sequencing, comprising the steps of:
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a) providing a plurality of beads, wherein each bead has immobilized on the surface thereof single-stranded template DNA having a 3′
terminus;b) annealing a first oligonucleotide to the 3′
terminus of the template DNA, wherein the first oligonucleotide comprises a 5′
overhanging sequence;c) annealing a second oligonucleotide to the 5′
overhanging sequence, wherein the second oligonucleotide comprises a 3′
blocking moiety; andd) ligating the second oligonucleotide to the template DNA; e) providing a solid support; f) forming an array by connecting the plurality of beads to the solid support; g) performing DNA sequencing on the array. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification