Nature Communications (May 2020)
A Cas9 with PAM recognition for adenine dinucleotides
Abstract
Protospacer adjacent motif (PAM) requirements limit the target range of CRISPR endonucleases. Here, the authors graft the 5$$^{\prime}$$ ′ -NAAN-3$$^{\prime}$$ ′ PAM-interacting domain of SmacCas9 onto SpyCas9 to create adenine dinucleotide targeting chimeras.