Article
Enhanced proofreading governs CRISPR-Cas9 targeting accuracy.
Nature - 19 Oct 2017
Chen Janice S, Dagdas Yavuz S, Kleinstiver Benjamin P, Welch Moira M, Sousa Alexander A, Harrington Lucas B, Sternberg Samuel H, Joung J Keith, Yildiz Ahmet, Doudna Jennifer A
Abstract excerpt
The RNA-guided CRISPR-Cas9 nuclease from Streptococcus pyogenes (SpCas9) has been widely repurposed for genome editing. High-fidelity (SpCas9-HF1) and enhanced specificity (eSpCas9(1.1)) variants exhibit substantially reduced off-target cleavage in human cells, but the mechanism of target discrimination and the potential to further improve fidelity are unknown. Here, using single-molecule Förster resonance energy...
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