Ligand-binding domains of nuclear receptors facilitate tight control of split CRISPR activity

Nature Communications - Tập 7 Số 1
Duy Nguyen1, Yuichiro Miyaoka2, Luke A. Gilbert3, Steven J. Mayerl2, Brian H. Lee1, Jonathan S. Weissman3, Bruce R. Conklin3, James A. Wells3
1Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, 94158, California, USA
2Gladstone Institute of Cardiovascular Disease, San Francisco, 94143, California, USA
3Department of Cellular and Molecular Pharmacology, University of California, San Francisco, San Francisco, 94143, California, USA

Tóm tắt

AbstractCas9-based RNA-guided nuclease (RGN) has emerged to be a versatile method for genome editing due to the ease of construction of RGN reagents to target specific genomic sequences. The ability to control the activity of Cas9 with a high temporal resolution will facilitate tight regulation of genome editing processes for studying the dynamics of transcriptional regulation or epigenetic modifications in complex biological systems. Here we show that fusing ligand-binding domains of nuclear receptors to split Cas9 protein fragments can provide chemical control over split Cas9 activity. The method has allowed us to control Cas9 activity in a tunable manner with no significant background, which has been challenging for other inducible Cas9 constructs. We anticipate that our design will provide opportunities through the use of different ligand-binding domains to enable multiplexed genome regulation of endogenous genes in distinct loci through simultaneous chemical regulation of orthogonal Cas9 variants.

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Tập 7 Số 1

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