The PAM Requirement and Expanding CRISPR Beyond SpCas9
Type
Blog Post
...the use of novel S. pyogenes Cas9 variants with varying PAM sequences, 2) the use of Cas9 homologs derived... Jung MH, Kim S, Kim JH, Kim JH, Kim J-S (2017) In vivo genome editing with a small Cas9 orthologue derived...them more useful than SpCas9. For example, Cas9 from Staphylococcus aureus (SaCas9) is about 1 kilobase...as a binding signal for Cas9 and this sequence is a strict requirement for Cas9-mediated DNA cleavage.
...2020).
Characterization of Cas9 from additional bacterial species
Many more Cas9 orthologs have been isolated...
~20 additional Cas9 species
PAM sequence may not be characterized
Non-SpCas9's bind a variety of... In vivo genome editing using Staphylococcus aureus Cas9. Nature 520:186–191 . https://doi.org/10.1038...