| abstract |
The present invention relates to a method for modifying a target site in a host cell comprising contacting said host cell with a Cas nuclease, wherein said host cell is further contacted with a low-affinity Cas inhibitor and/or a sub-inhibitory concentration of a Cas inhibitor; and to a method for improving specificity of a Cas nuclease, comprising a) providing a Cas nuclease; and b) contacting said Cas nuclease with a low-affinity Cas inhibitor or a sub-inhibitory concentration of a Cas inhibitor; and c) thereby improving specificity of said Cas enzyme. Further, the present invention relates to compositions, polypeptides, uses and methods related thereto. |