sgRNAs for elimination of mouse Irsp53, Irtks, Mtss2, Mtss2, Abi1, Abi2, and mouse or rat Myo10 were ligated into expression plasmid pSpCas9(BB)-2A-Puro(PX459)V2.0 (67 (link)). The targeting construct for the Raph1 gene has been reported (35 (link)). After transfection and selection with puromycin of B16-F1, NIH 3T3, Rat2, and derived cells, routinely cultivated at 37 °C and 5% CO2 in high-glucose DMEM culture medium supplemented with 1% penicillin-streptomycin, 10% FBS, and 2 mM UltraGlutamine, clonal cell lines were validated by the TIDE sequence trace decomposition web tool (40 (link)) and immunoblotting. Detailed information is described in SI Appendix, Materials and Methods.