nos regulatory sequences and 3'UTR sequences control expression of the FokI::dCas9 RNA-guided nuclease (this requires two gRNAs in a defined spacing and orientation to generate heritable genome edits).
DNA cleavage by Poke\FokI endonuclease domains is strictly dimerisation dependent, therefore Fok1-dCas9 leads to heritable genome edits only when recruited by two gRNAs in a defined spacing and orientation. This improves the specificity of genome editing over that obtained with wild type Zzzz\Cas9.
DNA cleavage by Poke\FokI endonuclease domains is strictly dimerisation dependent, therefore Fok1-dCas9 leads to heritable genome edits only when recruited by two gRNAs in a defined spacing and orientation. This improves the specificity of genome editing over that obtained with wild type Zzzz\Cas9.