Targeted mutagenesis in mouse cells and embryos using an enhanced prime editor.
Targeted mutagenesis in mouse cells and embryos using an enhanced prime editor.
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DOI:
10.1186/s13059-021-02389-w
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发表时间:
2021-06-03
期刊:
影响因子:
12.3
通讯作者:
Kim K
中科院分区:
文献类型:
--
作者:
Park SJ;Jeong TY;Shin SK;Yoon DE;Lim SY;Kim SP;Choi J;Lee H;Hong JI;Ahn J;Seong JK;Kim K
Prime editors, novel genome-editing tools consisting of a CRISPR-Cas9 nickase and an engineered reverse transcriptase, can induce targeted mutagenesis. Nevertheless, much effort is required to optimize and improve the efficiency of prime-editing. Herein, we introduce two strategies to improve the editing efficiency using proximal dead sgRNA and chromatin-modulating peptides. We used enhanced prime-editing to generate Igf2 mutant mice with editing frequencies of up to 47% and observed germline transmission, no off-target effects, and a dwarf phenotype. This improved prime-editing method can be efficiently applied to cell research and to generate mouse models. The online version contains supplementary material available at 10.1186/s13059-021-02389-w.
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