Abstract
For precise genome editing, it is important to control the activity of sequence-specific nucleases. We have constructed a chemically inducible nuclease system based on the dimerization of FKBP and FRB domains in the presence of rapamycin and designated it as a chemically inducible dimerization (CID). The CID was designed to occur at the interlinker section between DNA binding domains and the FokI catalytic domain. Thus, induction of cleavage should occur quickly after addition of rapamycin because components of proteins are already in active form and located in the nucleus. This CID-dependent sequence-specific nuclease has potential to be applied for time-resolved analysis of the mutation induction mechanism in the genome.
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