Cytochrome P450 2A6 (CYP2A6) Human Gene Knockout Kit (CRISPR) KN422995 USD 1,290.00 2 Weeks CYP2A6 - KN2.0, Human gene knockout kit via CRISPR, non-homology mediated. Format 2 gRNA vectors, 1 linear donor Donor DNA EF1a-GFP-P2A-Puro KN422995 is the updated version of KN222995.