Comprehensive optimization of a reporter assay toolbox for three distinct CRISPR-Cas systems.
Comprehensive optimization of a reporter assay toolbox for three distinct CRISPR-Cas systems.
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针对三种不同 CRISPR-Cas 系统的报告分析工具箱的全面优化
DOI:
10.1002/2211-5463.13198
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发表时间:
2021-07
期刊:
影响因子:
2.6
通讯作者:
Wang Y
中科院分区:
文献类型:
--
作者:
Chen L;Gao H;Zhou B;Wang Y
The clustered, regularly interspaced, short palindromic repeats‐associated DNA nuclease (CRISPR‐Cas) protein system allows programmable gene editing through inducing double‐strand breaks. Reporter assays for DNA cleavage and DNA repair events play an important role in advancing the CRISPR technology and improving our understanding of the underlying molecular mechanisms. Here, we developed a series of reporter assays to probe mechanisms of action of various editing processes, including nonhomologous DNA end joining, homology‐directed repair and single‐strand annealing. With special target design, the reporter assays as an optimized toolbox can be used to take advantage of three distinct CRISPR‐Cas systems (Streptococcus pyogenes Cas9, Staphylococcus aureus Cas9 and Francisella novicida U112 Cpf1) and two different reporters (GFP and Gaussia luciferase). We further validated the Gaussia reporter assays using a series of small molecules, including NU7441, RI‐1 and Mirin, and showcased the use of a GFP reporter assay as an effective tool for enrichment of cells with edited genome. We introduce a series of optimized clustered, regularly interspaced, short palindromic repeats (CRISPR) reporter assays that can use three CRISPR‐Cas systems, Streptococcus pyogenes Cas9, Staphylococcus aureus Cas9 and Francisella novicida U112 Cpf1, for probing various gene‐editing mechanisms, including nonhomologous DNA end joining, homology‐directed repair and single‐strand annealing. The use of GFP and Gaussia luciferase as reporters supports various applications, including high‐throughput drug screening and enrichment of the edited cell population.
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