METHODS FOR GENERATING A CRISPR ARRAY
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United States of America Patent
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May 2, 2024
app pub date -
Feb 28, 2022
filing date -
Mar 1, 2021
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Abstract
Provided herein are methods for generating multiplex CRISPR arrays based on annealing and ligating single-stranded DNA oligonucleotides using bridge oligonucleotides. The methods described herein include providing a first oligonucleotide comprising a CRISPR repeat sequence or a portion thereof, and a first portion of a first spacer sequence at its 3′ end; providing a second oligonucleotide comprising, from 5′ to 3′, a second portion of the first spacer sequence, the CRISPR repeat sequence, and a first portion of a second spacer sequence; providing a bridge oligonucleotide comprising a sequence substantially complementary to the first spacer sequence; allowing the first oligonucleotide and the second oligonucleotide to hybridize with the bridge oligonucleotide; and ligating the first and second oligonucleotide.
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