Methods and devices for in situ nucleic acid synthesis
First Claim
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1. A method for synthesizing a nucleic acid having a predefined sequence, the method comprising:
- a) providing a support comprising a plurality of features, each feature comprising a plurality of single-stranded support-bound oligonucleotides;
b) hybridizing a partially double-stranded first oligonucleotide to at least a first support-bound oligonucleotide at a first feature, wherein the first partially double-stranded oligonucleotide comprises a 5′
overhang and a ligatable predetermined addition nucleotide at a 3′
end of the double-stranded portion;
c) ligating the partially double-stranded first oligonucleotide to the first support-bound oligonucleotide thereby generating a first ligation product comprising the predetermined addition nucleotide; and
d) cleaving the first ligation product thereby generating a first elongated support-bound oligonucleotide comprising the predetermined addition nucleotide.
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Abstract
Disclosed are compositions, methods and devices for the in situ synthesis of nucleic acids. In an exemplary embodiment, a support-bound oligonucleotide is elongated by addition of one or more nucleotides by hybridization of a partially double-stranded oligonucleotide, ligation and removal of unwanted nucleotides.
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26 Claims
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1. A method for synthesizing a nucleic acid having a predefined sequence, the method comprising:
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a) providing a support comprising a plurality of features, each feature comprising a plurality of single-stranded support-bound oligonucleotides; b) hybridizing a partially double-stranded first oligonucleotide to at least a first support-bound oligonucleotide at a first feature, wherein the first partially double-stranded oligonucleotide comprises a 5′
overhang and a ligatable predetermined addition nucleotide at a 3′
end of the double-stranded portion;c) ligating the partially double-stranded first oligonucleotide to the first support-bound oligonucleotide thereby generating a first ligation product comprising the predetermined addition nucleotide; and d) cleaving the first ligation product thereby generating a first elongated support-bound oligonucleotide comprising the predetermined addition nucleotide. - 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)
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Specification