Orthogonal Cas9 proteins for RNA-guided gene regulation and editing.

Orthogonal Cas9 proteins for RNA-guided gene regulation and editing.
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DOI:
10.1038/nmeth.2681
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发表时间:
2013-11
期刊:
影响因子:
48
通讯作者:
Church, George M.
Church, George M.
中科院分区:
生物学1区
文献类型:
--
作者:
Esvelt, Kevin M.;Mali, Prashant;Braff, Jonathan L.;Moosburner, Mark;Yaung, Stephanie J.;Church, George M.

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来自化脓性链球菌CRISPR-Cas免疫系统的Cas9蛋白已经适应于各种生物体中的RNA指导的基因组编辑和基因调控,但在任何给定细胞内一次只能介导单一活性。在这里,我们描述了一组完全正交的Cas9蛋白,并证明了它们在细菌和人类细胞中介导同时和独立靶向基因调控和编辑的能力。我们发现Cas9直向同源物在它们对靶序列的识别中显示出一致的模式,并从脑膜炎奈瑟菌中鉴定出高度可靶向的蛋白质。我们的研究结果提供了一套基本的正交RNA引导蛋白质控制生物系统,并建立了一个通用的方法来表征其他蛋白质,并使它们适应真核细胞。
The Cas9 protein from the Streptococcus pyogenes CRISPR-Cas immune system has been adapted for both RNA-guided genome editing and gene regulation in a variety of organisms, but can mediate only a single activity at a time within any given cell. Here we characterize a set of fully orthogonal Cas9 proteins and demonstrate their ability to mediate simultaneous and independently targeted gene regulation and editing in bacteria and in human cells. We find that Cas9 orthologs display consistent patterns in their recognition of target sequences and identify a highly targetable protein from Neisseria meningitidis. Our results provide a basal set of orthogonal RNA-guided proteins for controlling biological systems and establish a general methodology for characterizing additional proteins and adapting them to eukaryotic cells.
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