CRISPR technologies and the search for the PAM-free nuclease.
CRISPR technologies and the search for the PAM-free nuclease.
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DOI:
10.1038/s41467-020-20633-y
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发表时间:
2021-01-22
影响因子:
16.6
通讯作者:
Beisel CL
中科院分区:
文献类型:
--
作者:
Collias D;Beisel CL
The ever-expanding set of CRISPR technologies and their programmable RNA-guided nucleases exhibit remarkable flexibility in DNA targeting. However, this flexibility comes with an ever-present constraint: the requirement for a protospacer adjacent motif (PAM) flanking each target. While PAMs play an essential role in self/nonself discrimination by CRISPR-Cas immune systems, this constraint has launched a far-reaching expedition for nucleases with relaxed PAM requirements. Here, we review ongoing efforts toward realizing PAM-free nucleases through natural ortholog mining and protein engineering. We also address potential consequences of fully eliminating PAM recognition and instead propose an alternative nuclease repertoire covering all possible PAM sequences. One of the key limitations of CRISPR-Cas-based genome editing techniques is the PAM dependency. Here, the authors review ongoing efforts towards realizing PAM-free nucleases, address potential consequences of eliminating PAM recognition, and propose an alternative nuclease repertoire covering all possible PAM sequences.
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DOI:
10.1126/science.aaf5573
发表时间:
2016-08-05
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Abudayyeh OO;Gootenberg JS;Konermann S;Joung J;Slaymaker IM;Cox DB;Shmakov S;Makarova KS;Semenova E;Minakhin L;Severinov K;Regev A;Lander ES;Koonin EV;Zhang F
通讯作者:
Zhang F
影响因子:
46.9
作者:
Doench JG;Fusi N;Sullender M;Hegde M;Vaimberg EW;Donovan KF;Smith I;Tothova Z;Wilen C;Orchard R;Virgin HW;Listgarten J;Root DE
通讯作者:
Root DE
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:
82.9
作者:
Charlesworth, Carsten T.;Deshpande, Priyanka S.;Porteus, Matthew H.
通讯作者:
Porteus, Matthew H.
影响因子:
4.4
作者:
Brandt, Katelyn;Nethery, Matthew A.;Barrangou, Rodolphe
通讯作者:
Barrangou, Rodolphe