Reaction: 2 H2O2 = O2 + 2 H2O
Other name(s): equilase; caperase; optidase; catalase-peroxidase; CAT
Systematic name: hydrogen-peroxide:hydrogen-peroxide oxidoreductase
Comments: A hemoprotein. A manganese protein containing MnIII in the resting state, which also belongs here, is often called pseudocatalase. The enzymes from some organisms, such as Penicillium simplicissimum, can also act as a peroxidase (EC 220.127.116.11) for which several organic substances, especially ethanol, can act as a hydrogen donor. Enzymes that exhibit both catalase and peroxidase activity belong under EC 18.104.22.168, catalase-peroxidase.
Links to other databases: BRENDA, EAWAG-BBD, EXPASY, KEGG, Metacyc, PDB, CAS registry number: 9001-05-2
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