Efficient genome editing in zebrafish using a CRISPR-Cas system.

Efficient genome editing in zebrafish using a CRISPR-Cas system.
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DOI:
10.1038/nbt.2501
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发表时间:
2013-03
影响因子:
46.9
通讯作者:
--
中科院分区:
工程技术1区
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簇状的定期间隔短的短质体重复序列(CRISPR)/CRISPR相关(CAS)系统已在细菌和古细菌中进化为一种防御机制,以使病毒和质粒的异物外核酸保持沉默。最近的工作表明,可以对细菌II型CRISPR系统进行调整,以创建指导RNA(GRNA),能够在体外通过Cas9核酸酶指导位点特异性的DNA裂解。在这里,我们表明该系统可以在体内发挥作用,以诱导斑马鱼胚胎的靶向遗传修饰,其效率与使用ZFNS和TALES获得的同一基因获得的效率相当。 RNA引导的核酸酶在11个测试的11个不同位点中的9个中有强大的基因组编辑,其中两个先前未能诱导改变的塔伦斯。这些结果表明,可编程的CRISPR/CAS系统提供了一种简单,快速且高度可扩展的方法,用于改变体内基因,为在广泛的生物体中使用RNA引导的核酸酶进行基因组编辑打开了大门。
Clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated (Cas) systems have evolved in bacteria and archaea as a defense mechanism to silence foreign nucleic acids of viruses and plasmids. Recent work has shown that bacterial type II CRISPR systems can be adapted to create guide RNAs (gRNAs) capable of directing site-specific DNA cleavage by the Cas9 nuclease in vitro. Here we show that this system can function in vivo to induce targeted genetic modifications in zebrafish embryos with efficiencies comparable to those obtained using ZFNs and TALENs for the same genes. RNA-guided nucleases robustly enabled genome editing at 9 of 11 different sites tested, including two for which TALENs previously failed to induce alterations. These results demonstrate that programmable CRISPR/Cas systems provide a simple, rapid, and highly scalable method for altering genes in vivo, opening the door to using RNA-guided nucleases for genome editing in a wide range of organisms.
DOI: 10.1126/science.1225829
发表时间: 2012-08-17
期刊: SCIENCE
影响因子: 56.9
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影响因子: 48
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