Asymmetric adapter library construction
First Claim
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1. A method of producing asymmetrically tagged nucleic acid, comprising(i) ligating an adaptor to both ends of a double-stranded nucleic acid fragment to produce a ligation product, wherein said adaptor is composed of a single strand of nucleic acid that comprises:
- (a) a double stranded stem region and(b) a loop region that comprises a cleavable linkage that is positioned between two non-complementary sequences; and
(ii) cleaving said ligation product using an agent that specifically cleaves said cleavable linkage, thereby producing an pair of asymmetrically tagged strands that each comprise a 5′
tag and a 3′
tag, where the sequences of the 5′
tag and the 3′
tag are different.
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Abstract
The present invention provides methods and compositions for asymmetrically tagging a nucleic acid fragment using asymmetric adapters.
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13 Claims
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1. A method of producing asymmetrically tagged nucleic acid, comprising
(i) ligating an adaptor to both ends of a double-stranded nucleic acid fragment to produce a ligation product, wherein said adaptor is composed of a single strand of nucleic acid that comprises: -
(a) a double stranded stem region and (b) a loop region that comprises a cleavable linkage that is positioned between two non-complementary sequences; and (ii) cleaving said ligation product using an agent that specifically cleaves said cleavable linkage, thereby producing an pair of asymmetrically tagged strands that each comprise a 5′
tag and a 3′
tag, where the sequences of the 5′
tag and the 3′
tag are different. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification