Trans-spliced Cas9 allows cleavage of HBB and CCR5 genes in human cells using compact expression cassettes

Abstract excerpt

CRISPR/Cas9 systems have been used in a wide variety of biological studies; however, the large size of CRISPR/Cas9 presents challenges in packaging it within adeno-associated viruses (AAVs) for clinical applications. We identified a two-cassette system expressing pieces of the S. pyogenes Cas9 (SpCas9) protein which splice together in cellula to form a functional protein capable of site-specific DNA cleavage....

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