CRISPR C-to-G base editors for inducing targeted DNA transversions in human cells.
CRISPR C-to-G base editors for inducing targeted DNA transversions in human cells.
复制标题
DOI:
10.1038/s41587-020-0609-x
复制
发表时间:
2021-01
影响因子:
46.9
通讯作者:
Joung JK
中科院分区:
文献类型:
--
作者:
Kurt IC;Zhou R;Iyer S;Garcia SP;Miller BR;Langner LM;Grünewald J;Joung JK
CRISPR-guided DNA cytosine and adenine base editors (CBEs and ABEs) are widely used for many applications but primarily create DNA base transitions (i.e., pyrimidine-to-pyrimidine, or purine-to-purine). Here we describe the engineering of two base editor architectures that can efficiently induce targeted C-to-G base transversions, with reduced levels of unwanted C-to-W (W = A or T) and indel mutations. One of these C-to-G base editors (CGBE1), consists of an RNA-guided Cas9 nickase, an E. coli-derived uracil DNA N-glycosylase (eUNG), and a rat APOBEC1 cytidine deaminase variant (R33A) previously shown to have reduced off-target RNA and DNA editing activities. We show that CGBE1 can efficiently induce C-to-G edits, particularly in AT-rich sequence contexts in human cells. We also removed the eUNG domain to yield miniCGBE1, which reduced indel frequencies but only modestly decreased editing efficiency. CGBE1 and miniCGBE1 enable C-to-G edits and will serve as a basis for optimizing C-to-G base editors for research and therapeutic applications. A new base editor enables the creation of C-to-G base changes in human cells.
登录
查看更多内容
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:
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:
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
DOI:
10.1126/science.aas9129
发表时间:
2018-09-21
期刊:
Science (New York, N.Y.)
影响因子:
--
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
通讯作者:
Nureki O