manganese peroxidase EC#: 1.11.1.13; ChemWhat Code: 1374839
| Product Name | manganese peroxidase |
| Example Structure |  |
| Synonyms | hybrid Mn-peroxidase, L-MnP, LeMnP2, manganese peroxidase, manganese-dependent peroxidase, Mn-dependent (NADH-oxidizing) peroxidase, Mn2+: hydrogen peroxide oxidoreductase, Mn2+:hydrogen peroxide oxidoreductase, MnP, MnP 1, MnP II, MnP-GY, MnP-PGY, mnp1, MnP2, MnP3, MnP6, MP, multifunctional manganese peroxidase, Nf b19 MNP2, peroxidase, manganese, peroxidase-M2 |
| EC Number | 1.11.1.13 |
| CAS Registry Number | 114995-15-2 |
| Comments | A hemoprotein. The enzyme from white rot basidiomycetes is involved in the oxidative degradation of lignin. The enzyme oxidizes a bound Mn2+ ion to Mn3+ in the presence of hydrogen peroxide. The product, Mn3+, is released from the active site in the presence of a chelator (mostly oxalate and malate) that stabilizes it against disproportionation to Mn2+ and insoluble Mn4+ [4]. The complexed Mn3+ ion can diffuse into the lignified cell wall, where it oxidizes phenolic components of lignin and other organic substrates [1]. It is inactive with veratryl alcohol or nonphenolic substrates. |
| Cofactor | heme |
| History | |
| Reactions | 2 Mn(2+) + 2 H(+) + H(2)O(2) = 2 Mn(3+) + 2 H(2)O. |
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