Targeted genomic modification with partially single-stranded donor molecules
First Claim
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1. A mammalian cell comprising:
- a genome comprising a double-stranded break with single-stranded overhangs;
a non-naturally occurring nuclease comprising a DNA-binding molecule that binds to a target site of at least 9 nucleotides in length and endonuclease cleavage domain, which nuclease is capable of generating the double-stranded break with single-stranded overhangs in the genome at the target site of interest; and
an exogenous linear donor nucleic acid molecule comprising a double-stranded exogenous sequence of interest having first and second ends and first and second single-stranded sequences of 4 to 10 nucleotides at the first and second ends of the double-stranded sequence,wherein the first and second single-stranded sequences are 100% complementary to the single-stranded overhangs in the genome such that the exogenous linear donor sequence is capable of being directly integrated at the target site of interest by annealing of the complementary first and second-single stranded sequences and non-homologous end joining (NHEJ)-mediated targeted integration.
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Abstract
Disclosed herein are donor molecules comprising single-stranded complementary regions flanking one or more sequences of interest. The donor molecules and/or compositions comprising these molecules can be used in methods for targeted integration of an exogenous sequence into a specified region of interest in the genome of a cell.
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Citations
14 Claims
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1. A mammalian cell comprising:
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a genome comprising a double-stranded break with single-stranded overhangs; a non-naturally occurring nuclease comprising a DNA-binding molecule that binds to a target site of at least 9 nucleotides in length and endonuclease cleavage domain, which nuclease is capable of generating the double-stranded break with single-stranded overhangs in the genome at the target site of interest; and an exogenous linear donor nucleic acid molecule comprising a double-stranded exogenous sequence of interest having first and second ends and first and second single-stranded sequences of 4 to 10 nucleotides at the first and second ends of the double-stranded sequence, wherein the first and second single-stranded sequences are 100% complementary to the single-stranded overhangs in the genome such that the exogenous linear donor sequence is capable of being directly integrated at the target site of interest by annealing of the complementary first and second-single stranded sequences and non-homologous end joining (NHEJ)-mediated targeted integration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification