xCas9: Engineering a CRISPR Variant with PAM Flexibility
Type
Blog Post
Published
March 28, 2018, 6:52 p.m.
...(MP6) permits quick, large-scale mutation of the gene of interest. They created a selection phage (SP)...transcription from the accessory plasmid (AP) encoding phage gene III. The accessory plasmid library contained all... a library PAM, it would induce transcription of gene III, permitting phage propagation and keeping that...evolution to generate and select for Cas9 mutants with PAM flexibility. In this system, the mutagenesis plasmid...this paper are available at Addgene.
Additional Resources on the Addgene Blog
Learn about Engineered...another 72 hours of phage-assisted evolution, generating xCas9 2.0-2.6. This second round of evolution... Cas9 variants with activity on non-NGG PAMs, generating xCas9 3.0-3.13.
To test xCas9 3.0-3.13, Hu et...