Peroxidase
Definition:
EC Tree > 1 Oxidoreductases > 1.11 Acting on a peroxide as acceptor > 1.11.1 Peroxidases > 1.11.1.7 peroxidase
Peroxidases are heme proteins with histidine as proximal ligand, the resting iron being Fe(III). They oxidize a variety of phenolic and non-phenolic donors such as 3,3′,5,5′-tetramethylbenzidine (TMB) and ABTS, and certain members (e.g. lactoperoxidase, soybean peroxidase) also oxidize bromide and iodide; overall 2 donor molecules plus H2O2 give 2 donor phenoxyl radicals and 2 H2O.
Peroxidases are heme proteins with histidine as proximal ligand, the resting iron being Fe(III). They oxidize a variety of phenolic and non-phenolic donors such as 3,3′,5,5′-tetramethylbenzidine (TMB) and ABTS, and certain members (e.g. lactoperoxidase, soybean peroxidase) also oxidize bromide and iodide; overall 2 donor molecules plus H2O2 give 2 donor phenoxyl radicals and 2 H2O.
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