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- Title
Application of different types of CRISPR/Cas-based systems in bacteria.
- Authors
Liu, Zhenquan; Dong, Huina; Cui, Yali; Cong, Lina; Zhang, Dawei
- Abstract
As important genome editing tools, CRISPR/Cas systems, especially those based on type II Cas9 and type V Cas12a, are widely used in genetic and metabolic engineering of bacteria. However, the intrinsic toxicity of Cas9 and Cas12a-mediated CRISPR/Cas tools can lead to cell death in some strains, which led to the development of endogenous type I and III CRISPR/Cas systems. However, these systems are hindered by complicated development and limited applications. Thus, further development and optimization of CRISPR/Cas systems is needed. Here, we briefly summarize the mechanisms of different types of CRISPR/Cas systems as genetic manipulation tools and compare their features to provide a reference for selecting different CRISPR/Cas tools. Then, we show the use of CRISPR/Cas technology for bacterial strain evolution and metabolic engineering, including genome editing, gene expression regulation and the base editor tool. Finally, we offer a view of future directions for bacterial CRISPR/Cas technology.
- Subjects
BACTERIAL genomes; BACTERIAL genetic engineering; GENETIC regulation; CRISPRS; BACTERIAL evolution; GENOME editing
- Publication
Microbial Cell Factories, 2020, Vol 19, Issue 1, pN.PAG
- ISSN
1475-2859
- Publication type
Article
- DOI
10.1186/s12934-020-01431-z