A Needle in a Base-Stack: Cas9 Structural Biology
Type
Blog Post
...10.1146/annurev-biophys-062215-010822
Nishimasu, H., Ran, F. A., Hsu, P. D., Konermann, S., Shehata, S. I....
NUC
HNH
Cut DNA target strand
RuvC
Cut DNA non-target strand
CTD (or PI)
Recognize PAM...information on these regions.
Cas9’s transition from weak, random binding to precision gene editing requires...left) and transparent (right). The RNA guide sequence is extended as a single unpaired strand in the center...10 of the guide RNA, prearranged for base pairing with a complementary DNA strand. These 10 nucleotides...the non-target strand for the PAM sequence and doesn’t mind if the PAM complementary strand is mismatched...of the PAM in the non-target DNA strand (dark gray). Target DNA strand, light gray.
Once it has found...