A Cas-embedding strategy for minimizing off-target effects of DNA base editors.
A Cas-embedding strategy for minimizing off-target effects of DNA base editors.
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用于最小化DNA碱基编辑器的脱靶效应的Cas-embedding策略。
DOI:
10.1038/s41467-020-19690-0
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发表时间:
2020-11-27
影响因子:
16.6
通讯作者:
Chi T
中科院分区:
文献类型:
--
作者:
Liu Y;Zhou C;Huang S;Dang L;Wei Y;He J;Zhou Y;Mao S;Tao W;Zhang Y;Yang H;Huang X;Chi T
DNA base editors, typically comprising editing enzymes fused to the N-terminus of nCas9, display off-target effects on DNA and/or RNA, which have remained an obstacle to their clinical applications. Off-target edits are typically countered via rationally designed point mutations, but the approach is tedious and not always effective. Here, we report that the off-target effects of both A > G and C > T editors can be dramatically reduced without compromising the on-target editing simply by inserting the editing enzymes into the middle of nCas9 at tolerant sites identified using a transposon-based genetic screen. Furthermore, employing this Cas-embedding strategy, we have created a highly specific editor capable of efficient C > T editing at methylated and GC-rich sequences. DNA base editors can display off-target effects on DNA and RNA. Here the authors embed the base editing enzymes in the middle of nCas9 to reduce these without impacting on-target editing.
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影响因子:
46.9
作者:
Kim YB;Komor AC;Levy JM;Packer MS;Zhao KT;Liu DR
通讯作者:
Liu DR
影响因子:
16.6
作者:
Tan, Junjie;Zhang, Fei;Bock, Ralph
通讯作者:
Bock, Ralph
影响因子:
46.9
作者:
Koblan LW;Doman JL;Wilson C;Levy JM;Tay T;Newby GA;Maianti JP;Raguram A;Liu DR
通讯作者:
Liu DR
影响因子:
46.9
作者:
Oakes BL;Nadler DC;Flamholz A;Fellmann C;Staahl BT;Doudna JA;Savage DF
通讯作者:
Savage DF
影响因子:
46.9
作者:
Wang, Xiao;Li, Jianan;Yang, Li
通讯作者:
Yang, Li