catalase activity CAT Catalysis of the reaction: 2 hydrogen peroxide = O2 + 2 H2O. EC:1.11.1.6 GO:0004096 GO:0016952 GO:0016953 MetaCyc:CATAL-RXN RHEA:20312 Reactome:REACT_101648 Reactome:REACT_108235 Reactome:REACT_112160 Reactome:REACT_30681 Reactome:REACT_30704 Reactome:REACT_30957 Reactome:REACT_615 Reactome:REACT_79013 Reactome:REACT_79757 Reactome:REACT_85074 Reactome:REACT_85170 Reactome:REACT_87638 Reactome:REACT_89864 Reactome:REACT_90743 Reactome:REACT_91037 Reactome:REACT_91307 Reactome:REACT_96832 UM-BBD_enzymeID:e0834 bacterial catalase-peroxidase activity caperase activity catalase reaction catalase-peroxidase activity equilase activity haem catalase activity heme catalase activity hydrogen-peroxide:hydrogen-peroxide oxidoreductase activity manganese catalase activity molecular_function optidase activity peroxidase activity