Tags: Protein.
Haem peroxidases (or heme peroxidases) are haem-containing enzymes that use hydrogen peroxide as the electron acceptor to catalyse a number of oxidative reactions. Most haem peroxidases follow the reaction scheme: Fe3+ + H2O2 [Fe4+=O]R’ (Compound I) + H2O [Fe4+O]R’ + substrate –> [Fe4+=O]R (Compound II) + oxidised substrate [Fe4+O]R + substrate –> Fe3+ + H2O + oxidised substrateIn this mechanism the enzyme reacts with one equivalent of H2O2 to give [Fe4+=O]R’ (compound I).