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ENZYME entry: EC 1.7.3.6

Accepted Name
Hydroxylamine oxidase (cytochrome).
Alternative Name(s)
HAO.
Hydroxylamine oxidase.
Hydroxylamine oxidoreductase.
Reaction catalysed
Hydroxylamine + O(2) <=> nitrite + H(2)O + H(+)
Cofactor(s)
Fe cation.
Comment(s)
  • The enzyme from the heterotrophic nitrifying bacterium Paracoccus denitrificans contains three to five non-heme, non-iron-sulfur iron atoms and interacts with cytochrome c(556) and pseudoazurin.
  • Under anaerobic conditions in vitro only nitrous oxide is formed.
  • Presumably nitroxyl is released and combines with a second nitroxyl to give nitrous oxide and water.
  • When oxygen is present, nitrite is formed.
  • Formerly EC 1.7.3.4.
Cross-references
BRENDA1.7.3.6
EC2PDB1.7.3.6
ExplorEnz1.7.3.6
PRIAM enzyme-specific profiles1.7.3.6
KEGG Ligand Database for Enzyme Nomenclature1.7.3.6
IUBMB Enzyme Nomenclature1.7.3.6
IntEnz1.7.3.6
MEDLINEFind literature relating to 1.7.3.6
MetaCyc1.7.3.6

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All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 1.7.3.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 1.7.-.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 1.-.-.-