Programmable C:G to G:C genome editing with CRISPR-Cas9-directed base excision repair proteins.
Programmable C:G to G:C genome editing with CRISPR-Cas9-directed base excision repair proteins.
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DOI:
10.1038/s41467-021-21559-9
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发表时间:
2021-03-02
影响因子:
16.6
通讯作者:
Chew WL
中科院分区:
文献类型:
--
作者:
Chen L;Park JE;Paa P;Rajakumar PD;Prekop HT;Chew YT;Manivannan SN;Chew WL
Many genetic diseases are caused by single-nucleotide polymorphisms. Base editors can correct these mutations at single-nucleotide resolution, but until recently, only allowed for transition edits, addressing four out of twelve possible DNA base substitutions. Here, we develop a class of C:G to G:C Base Editors to create single-base genomic transversions in human cells. Our C:G to G:C Base Editors consist of a nickase-Cas9 fused to a cytidine deaminase and base excision repair proteins. Characterization of >30 base editor candidates reveal that they predominantly perform C:G to G:C editing (up to 90% purity), with rAPOBEC-nCas9-rXRCC1 being the most efficient (mean 15.4% and up to 37% without selection). C:G to G:C Base Editors target cytidine in WCW, ACC or GCT sequence contexts and within a precise three-nucleotide window of the target protospacer. We further target genes linked to dyslipidemia, hypertrophic cardiomyopathy, and deafness, showing the therapeutic potential of these base editors in interrogating and correcting human genetic diseases. Many diseases are caused by single-nucleotide polymorphisms. Here, the authors present CRISPR base editors that use the base excision machinery for single-base transversions.
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影响因子:
3.8
作者:
Wallace, Susan S.
通讯作者:
Wallace, Susan S.
影响因子:
64.8
作者:
Komor AC;Kim YB;Packer MS;Zuris JA;Liu DR
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Liu DR
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46.9
作者:
Kim, Daesik;Lim, Kayeong;Kim, Jin-Soo
通讯作者:
Kim, Jin-Soo
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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
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3.5
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Carrier L;Mearini G;Stathopoulou K;Cuello F
通讯作者:
Cuello F