History of CRISPR Cas - A tale of survival and evolution
Type
Blog Post
Published
Nov. 25, 2013, 10:12 p.m.
... concept that these clustered repeat sequences operated as a safeguard against bacteriophages did not ... bacterial genome. Cas genes, which code for polymerases, nucleases, and helicases, were also disrupted...proteins then express and process the CRISPR loci to generate RNA, which guide a Cas nuclease to the specified...learned to circumvent the CRISPR/Cas defense by generating a single point mutation in the PAM sequence, ...