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Nat Biotechnol. 2015 Nov;33(11):1159-61.

Orthogonal gene knockout and activation with a catalytically active Cas9 nuclease.

Abstract

We have developed a CRISPR-based method that uses catalytically active Cas9 and distinct single guide (sgRNA) constructs to knock out and activate different genes in the same cell. These sgRNAs, with 14- to 15-bp target sequences and MS2 binding loops, can activate gene expression using an active Streptococcus pyogenes Cas9 nuclease, without inducing double-stranded breaks. We use these 'dead RNAs' to perform orthogonal gene knockout and transcriptional activation in human cells.

PMID:
26436575
PMCID:
PMC4747789
DOI:
10.1038/nbt.3390
[Indexed for MEDLINE]
Free PMC Article

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