| Literature DB >> 27455460 |
Xiaofei Wang1, Deqiang Yao2, Jin-Gen Xu1, A-Rong Li1, Jianpo Xu1, Panhan Fu1, Yan Zhou1, Yongqun Zhu1.
Abstract
Bacteriophages express proteins that inactivate the CRISPR-Cas bacterial immune system. Here we report the crystal structure of the anti-CRISPR protein AcrF3 in complex with Pseudomonas aeruginosa Cas3 (PaCas3). AcrF3 forms a homodimer that locks PaCas3 in an ADP-bound form, blocks the entrance of the DNA-binding tunnel in the helicase domain, and masks the linker region and C-terminal domain of PaCas3, thereby preventing recruitment by Cascade and inhibiting the type I-F CRISPR-Cas system.Entities:
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Year: 2016 PMID: 27455460 DOI: 10.1038/nsmb.3269
Source DB: PubMed Journal: Nat Struct Mol Biol ISSN: 1545-9985 Impact factor: 15.369