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EC 1.16.3.3 Details
EC number
1.16.3.3
Accepted name
manganese oxidase
Reaction
4 Mn2+ + 2 O2 + 4 H2O = 4 MnIVO2 + 8 H+ (overall reaction);;(1a) 4 Mn2+ + O2 + 4 H+ = 4 Mn3+ + 2 H2O;;(1b) 4 Mn3+ + O2 + 6 H2O = 4 MnIVO2 + 12 H+
Other name(s)
mnxG (gene name), mofA (gene name), moxA (gene name), cotA (gene name)
Systematic name
manganese(II):oxygen oxidoreductase
Comment
The enzyme, which belongs to the multicopper oxidase family, is found in many bacterial strains. It oxidizes soluble manganese(II) to insoluble manganese(IV) oxides. Since the enzyme is localized to the outer surface of the cell, its activity usually results in encrustation of the cells by the oxides. The physiological function of bacterial manganese(II) oxidation remains unclear.
History
created 2017
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