Manganese peroxidase from white-rot fungus (Phanerochaete chrysosporium) is a lignin-modifying peroxidase that catalyzes the oxidation of Mn²⁺ to Mn³⁺. Mn³⁺ is stabilized by chelators like oxalic acid. Manganese peroxidase uses peroxide as an oxidant and manganese coordination compounds as charge-transfer mediators.

Manganese peroxidase has a molecular weight of 40-50 kDa and is a glycosylated heme protein.

One unit is the amount of enzyme which will oxidize 1.0 μmole Mn²⁺ per minute to Mn³⁺ at pH 4.5 and 25 °C

以含有~50%酒石酸钠的冻干粉形式提供