Engineered CRISPR-Cas9 nuclease with expanded targeting space.
Engineered CRISPR-Cas9 nuclease with expanded targeting space.
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DOI:
10.1126/science.aas9129
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发表时间:
2018-09-21
期刊:
影响因子:
--
通讯作者:
Nureki O
中科院分区:
文献类型:
--
作者:
Nishimasu H;Shi X;Ishiguro S;Gao L;Hirano S;Okazaki S;Noda T;Abudayyeh OO;Gootenberg JS;Mori H;Oura S;Holmes B;Tanaka M;Seki M;Hirano H;Aburatani H;Ishitani R;Ikawa M;Yachie N;Zhang F;Nureki O
The RNA-guided endonuclease Cas9 cleaves its target DNA and is a powerful genome-editing tool. However, the widely used Streptococcus pyogenes Cas9 enzyme (SpCas9) requires an NGG protospacer adjacent motif (PAM) for target recognition, thereby restricting the targetable genomic loci. Here, we report a rationally engineered SpCas9 variant (SpCas9-NG) that can recognize relaxed NG PAMs. The crystal structure revealed that the loss of the base-specific interaction with the third nucleobase is compensated by newly introduced non–base-specific interactions, thereby enabling the NG PAM recognition. We showed that SpCas9-NG induces indels at endogenous target sites bearing NG PAMs in human cells. Furthermore, we found that the fusion of SpCas9-NG and the activation-induced cytidine deaminase (AID) mediates the C-to-T conversion at target sites with NG PAMs in human cells.
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影响因子:
64.8
作者:
Anders, Carolin;Niewoehner, Ole;Duerst, Alessia;Jinek, Martin
通讯作者:
Jinek, Martin
影响因子:
46.9
作者:
Tsai, Shengdar Q.;Zheng, Zongli;Nguyen, Nhu T.;Liebers, Matthew;Topkar, Ved V.;Thapar, Vishal;Wyvekens, Nicolas;Khayter, Cyd;Iafrate, A. John;Le, Long P.;Aryee, Martin J.;Joung, J. Keith
通讯作者:
Joung, J. Keith
影响因子:
64.8
作者:
Komor AC;Kim YB;Packer MS;Zuris JA;Liu DR
通讯作者:
Liu DR
影响因子:
64.5
作者:
Zetsche B;Gootenberg JS;Abudayyeh OO;Slaymaker IM;Makarova KS;Essletzbichler P;Volz SE;Joung J;van der Oost J;Regev A;Koonin EV;Zhang F
通讯作者:
Zhang F
影响因子:
56.9
作者:
Jinek, Martin;Chylinski, Krzysztof;Charpentier, Emmanuelle
通讯作者:
Charpentier, Emmanuelle