Cloning-free CRISPR/Cas system facilitates functional cassette knock-in in mice.

Cloning-free CRISPR/Cas system facilitates functional cassette knock-in in mice.
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DOI:
10.1186/s13059-015-0653-x
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发表时间:
2015-04-29
期刊:
影响因子:
12.3
通讯作者:
Tanaka K
Tanaka K
中科院分区:
生物学1区
文献类型:
--
作者:
Aida T;Chiyo K;Usami T;Ishikubo H;Imahashi R;Wada Y;Tanaka KF;Sakuma T;Yamamoto T;Tanaka K

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尽管CRISPR/Cas系统已经能够一步产生敲除小鼠,但盒敲入的低成功率限制了其应用范围。在这里,我们表明,无克隆,直接核递送具有化学合成的双RNA的Cas9蛋白复合物能够高效地消化靶标,从而产生携带功能盒的敲入小鼠,效率高达50%,而通常使用的方法仅为10%,由Cas9 mRNA和单向导RNA组成。我们的无克隆CRISPR/Cas系统有助于快速一步生成盒式基因敲入小鼠,通过提供各种体内遗传工具加速功能基因组研究。本文的在线版本(doi:10.1186/s13059-015-0653-x)包含补充材料,可供授权用户使用。
Although the CRISPR/Cas system has enabled one-step generation of knockout mice, low success rates of cassette knock-in limit its application range. Here we show that cloning-free, direct nuclear delivery of Cas9 protein complex with chemically synthesized dual RNAs enables highly efficient target digestion, leading to generation of knock-in mice carrying a functional cassette with up to 50% efficiency, compared with just 10% by a commonly used method consisting of Cas9 mRNA and single guide RNA. Our cloning-free CRISPR/Cas system facilitates rapid one-step generation of cassette knock-in mice, accelerating functional genomic research by providing various in vivo genetic tools. The online version of this article (doi:10.1186/s13059-015-0653-x) contains supplementary material, which is available to authorized users.
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