PMID- 31523770 OWN - NLM STAT- MEDLINE DCOM- 20201217 LR - 20201217 IS - 1940-6029 (Electronic) IS - 1064-3745 (Linking) VI - 2069 DP - 2020 TI - Genetic Manipulation of MRSA Using CRISPR/Cas9 Technology. PG - 113-124 LID - 10.1007/978-1-4939-9849-4_9 [doi] AB - The clustered regularly interspersed short palindromic repeat (CRISPR)/Cas9 system has emerged as an efficient genome engineering method attributed to its high efficiency and versatility. By generating a lethal double-strand DNA break in the target genome, the CRISPR/Cas9 system is capable of selecting the separated crossover events occurring in the traditional genetic manipulation methods in one step, therefore enabling rapid and efficient genome editing in Staphylococcus aureus, including methicillin-resistant S. aureus (MRSA). By engineering the fusion of a cytidine deaminase APOBEC1 and a Cas9 nickase, a base editor was further developed as a highly efficient gene inactivation and point mutation tool in S. aureus. Here we describe a detailed protocol for CRISPR/Cas9-based genome editing in S. aureus, including genome modification and base editing. This protocol outlines in detail the design of primers, the construction and transformation of editing plasmids, as well as the verification of sequence-specific CRISPR/Cas9-mediated mutagenesis in S. aureus. FAU - Chen, Weizhong AU - Chen W AD - School of Physical Science and Technology, ShanghaiTech University, Shanghai, China. FAU - Ji, Quanjiang AU - Ji Q AD - School of Physical Science and Technology, ShanghaiTech University, Shanghai, China. quanjiangji@shanghaitech.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Methods Mol Biol JT - Methods in molecular biology (Clifton, N.J.) JID - 9214969 SB - IM MH - *CRISPR-Cas Systems MH - *Gene Editing MH - Methicillin-Resistant Staphylococcus aureus/*genetics MH - *Mutagenesis MH - Plasmids/*genetics MH - *Point Mutation OTO - NOTNLM OT - Base editing OT - CRISPR/Cas9 OT - Genome editing OT - MRSA OT - Staphylococcus aureus OT - pCasSA OT - pnCasSA-BEC EDAT- 2019/09/17 06:00 MHDA- 2020/12/18 06:00 CRDT- 2019/09/17 06:00 PHST- 2019/09/17 06:00 [entrez] PHST- 2019/09/17 06:00 [pubmed] PHST- 2020/12/18 06:00 [medline] AID - 10.1007/978-1-4939-9849-4_9 [doi] PST - ppublish SO - Methods Mol Biol. 2020;2069:113-124. doi: 10.1007/978-1-4939-9849-4_9.