3.4.21.78 additional information compared with granzyme B, granzyme A is minor effector of target cell lysis by natural killer cells 3.4.21.78 NADH dehydrogenase (ubiquinone) Fe-S protein 3 + H2O - 3.4.21.78 protein NDUFS3 + H2O GzmA cleavage of native Ndufs3 disrupts complex I electron transport