Developing mitochondrial base editors with diverse context compatibility and high fidelity via saturated spacer library.
Developing mitochondrial base editors with diverse context compatibility and high fidelity via saturated spacer library.
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通过饱和的间隔者库来开发具有不同上下文兼容性和高忠诚度的线粒体基础编辑器。
DOI:
10.1038/s41467-023-42359-3
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发表时间:
2023-10-19
影响因子:
16.6
通讯作者:
Shen, Bin
中科院分区:
文献类型:
--
作者:
Sun, Haifeng;Wang, Zhaojun;Shen, Limini;Feng, Yeling;Han, Lu;Qian, Xuezhen;Meng, Runde;Ji, Kangming;Liang, Dong;Zhou, Fei;Lou, Xin;Zhang, Jun;Shen, Bin
DddA-derived cytosine base editors (DdCBEs) greatly facilitated the basic and therapeutic research of mitochondrial DNA mutation diseases. Here we devise a saturated spacer library and successfully identify seven DddA homologs by performing high-throughput sequencing based screen. DddAs of Streptomyces sp. BK438 and Lachnospiraceae bacterium sunii NSJ-8 display high deaminase activity with a strong GC context preference, and DddA of Ruminococcus sp. AF17-6 is highly compatible to AC context. We also find that different split sites result in wide divergence on off-target activity and context preference of DdCBEs derived from these DddA homologs. Additionally, we demonstrate the orthogonality between DddA and DddIA, and successfully minimize the nuclear off-target editing by co-expressing corresponding nuclear-localized DddIA. The current study presents a comprehensive and unbiased strategy for screening and characterizing dsDNA cytidine deaminases, and expands the toolbox for mtDNA editing, providing additional insights for optimizing dsDNA base editors. Ddd-Aderived cytosine base editors (DdCBEs) are important for research of mitochondrial DNA mutation diseases. Here the authors report a strategy for screening and characterising dsDNA cytidine deaminases, and identify 7 DddA homologs which they optimise to minimise nuclear and mitochondrial off-target editing.
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DOI:
10.1093/bioinformatics/btq033
发表时间:
2010-03-15
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Quinlan AR;Hall IM
通讯作者:
Hall IM
影响因子:
48
作者:
Langmead, Ben;Salzberg, Steven L.
通讯作者:
Salzberg, Steven L.
影响因子:
46.9
作者:
Mok, Beverly Y.;Kotrys, Anna, V;Raguram, Aditya;Huang, Tony P.;Mootha, Vamsi K.;Liu, David R.
通讯作者:
Liu, David R.
影响因子:
64.8
作者:
Jumper J;Evans R;Pritzel A;Green T;Figurnov M;Ronneberger O;Tunyasuvunakool K;Bates R;Žídek A;Potapenko A;Bridgland A;Meyer C;Kohl SAA;Ballard AJ;Cowie A;Romera-Paredes B;Nikolov S;Jain R;Adler J;Back T;Petersen S;Reiman D;Clancy E;Zielinski M;Steinegger M;Pacholska M;Berghammer T;Bodenstein S;Silver D;Vinyals O;Senior AW;Kavukcuoglu K;Kohli P;Hassabis D
通讯作者:
Hassabis D
影响因子:
16.6
作者:
Silva-Pinheiro P;Nash PA;Van Haute L;Mutti CD;Turner K;Minczuk M
通讯作者:
Minczuk M