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Characterization of Brevibacillus laterosporus Cas9 (BlatCas9) for Mammalian Genome Editing.


ABSTRACT: Compact CRISPR/Cas9 systems that can be delivered by AAV for in vivo genome editing hold great promise for clinical applications. Brevibacillus laterosporus Cas9 (BlatCas9) is a compact Cas9 nuclease that has been identified for plant genome editing. Here, we characterize BlatCas9 as an alternative tool for mammalian genome editing. We demonstrate that BlatCas9 prefers a N4CNAA protospacer adjacent motif (PAM), but N4C PAM is also editable in mammalian cells. We next demonstrate that BlatCas9 enables genome editing in a variety of cell types. Furthermore, BlatCas9 can be packaged into AAV for genome editing. Finally, we characterize the specificity of BlatCas9. In summary, BlatCas9 offers an alternative tool for both basic research and clinical applications.

SUBMITTER: Gao N 

PROVIDER: S-EPMC7604293 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Characterization of <i>Brevibacillus laterosporus</i> Cas9 (BlatCas9) for Mammalian Genome Editing.

Gao Ning N   Zhang Chengdong C   Hu Ziying Z   Li Miaomiao M   Wei Jingjing J   Wang Yongming Y   Liu Huihui H  

Frontiers in cell and developmental biology 20201019


Compact CRISPR/Cas9 systems that can be delivered by AAV for <i>in vivo</i> genome editing hold great promise for clinical applications. <i>Brevibacillus laterosporus</i> Cas9 (BlatCas9) is a compact Cas9 nuclease that has been identified for plant genome editing. Here, we characterize BlatCas9 as an alternative tool for mammalian genome editing. We demonstrate that BlatCas9 prefers a N4CNAA protospacer adjacent motif (PAM), but N4C PAM is also editable in mammalian cells. We next demonstrate th  ...[more]

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