Asymmetric adapter library construction
First Claim
Patent Images
1. A method of producing an asymmetrically tagged nucleic acid fragment, said method comprising:
- i) ligating an adapter to both ends of a double-stranded nucleic acid fragment, wherein said adapter comprises;
(a) a first and a second nucleic acid strand hybridized together, wherein said hybridized strands comprise one or more wobble base pair;
(b) a ligation site positioned on a first end of said hybridized strands configured to allow ligation of said adapter to said double stranded nucleic acid fragment; and
(d) a nucleic acid synthesis primer binding site positioned upstream of said one or more wobble base pair;
ii) annealing a synthesis primer specific for said nucleic acid synthesis primer binding site to said adaptor ligated fragment; and
iii) performing a first round of nucleic acid synthesis initiated from said annealed synthesis primer, wherein the nucleotide base incorporated at said one or more wobble base pair in the adapter region at a first end of said adaptor ligated fragment is different than the corresponding nucleotide in the adapter region at a second end of said adapter ligated fragment, thereby producing an asymmetrically tagged nucleic acid fragment.
3 Assignments
0 Petitions
Accused Products
Abstract
The present invention provides methods and compositions for asymmetrically tagging a nucleic acid fragment using asymmetric adapters.
-
Citations
10 Claims
-
1. A method of producing an asymmetrically tagged nucleic acid fragment, said method comprising:
-
i) ligating an adapter to both ends of a double-stranded nucleic acid fragment, wherein said adapter comprises; (a) a first and a second nucleic acid strand hybridized together, wherein said hybridized strands comprise one or more wobble base pair; (b) a ligation site positioned on a first end of said hybridized strands configured to allow ligation of said adapter to said double stranded nucleic acid fragment; and (d) a nucleic acid synthesis primer binding site positioned upstream of said one or more wobble base pair; ii) annealing a synthesis primer specific for said nucleic acid synthesis primer binding site to said adaptor ligated fragment; and iii) performing a first round of nucleic acid synthesis initiated from said annealed synthesis primer, wherein the nucleotide base incorporated at said one or more wobble base pair in the adapter region at a first end of said adaptor ligated fragment is different than the corresponding nucleotide in the adapter region at a second end of said adapter ligated fragment, thereby producing an asymmetrically tagged nucleic acid fragment. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. An adapter comprising:
-
(a) a first and a second nucleic acid strand hybridized together, wherein said hybridized strands comprise one or more wobble base pair; (b) a ligation site positioned on a first end of said adapter configured to allow ligation of said adapter to a compatible end of a double stranded nucleic acid fragment; and (d) a nucleic acid synthesis primer binding site positioned upstream of said one or more wobble base pair. - View Dependent Claims (9, 10)
-
Specification