Western blot of Hela transfected with PX458 (SpCas9(BB)-2A-GFP) or untransfected cell lysates with SaCas9 Monoclonal Antibody, clone 11C12. Lane 1: 50 ug cell lysate of Hela transfected with SpCas9(BB)-2A-GFP Lane 2: 50 ug untransfected Hela cell lysate Lane 3: 40 ug SpCas9 recombinant protein Primary Antibody: SaCas9 Monoclonal Antibody, clone 11C12 1 ug/mL Secondary Antibody: Goat anti-Mouse IgG (H&L) [IRDye800] 0.125 ug/mL