Cpf1: A New Tool for CRISPR Genome Editing
Type
Blog Post
...and requires only one RNA rather than the two (tracrRNA and crRNA) needed by Cas9 for cleavage. In certain...target. Cpf1 also does not require an additional tracrRNA.
Once they had determined the minimal elements...favored by SpCas9.
Since Cpf1 doesn’t require a tracrRNA, crRNA guides are only ~42 nt long. Direct synthesis...significantly cheaper than that of the ~100 nt crRNA/tracrRNA hybrid guides needed for Cas9 function. Since ...