Cpf1: A New Tool for CRISPR Genome Editing
Type
Blog Post
...is similar to that of high fidelity Cas9s eSpCas9 and SpCas9-HF1. Both AsCpf1 and LbCpf1 ribonucleoproteins...genomes that lack the 3’-NGG PAM sites favored by SpCas9.
Since Cpf1 doesn’t require a tracrRNA, crRNA guides... Cpf1 and its guide RNAs are smaller than their SpCas9 counterparts, they will also be easier to deliver...only slightly lower than that of the widely used SpCas9 and comparable to SaCas9. As seen with Cas9 orthologs...cleavage at 1-12 off-target sites; in contrast, SpCas9 may cleave at ~90 sites, according to Kim et al...off-target activity than that previously observed with SpCas9. Kleinstiver et al. suggest that AsCpf1’s off-target...