EC - Hydroxylamine reductase

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IntEnz Enzyme Nomenclature


Accepted name:
hydroxylamine reductase
Other names:
hydroxylamine (acceptor) reductase
ammonia:(acceptor) oxidoreductase
Systematic name:
ammonia:acceptor oxidoreductase




A flavoprotein. Reduced pyocyanine, methylene blue and flavins act as donors for the reduction of hydroxylamine. May be identical to EC, nitrite reductase (NO-forming).

Links to other databases

Enzymes and pathways: NC-IUBMB , BRENDA , ExplorEnz , ENZYME@ExPASy , KEGG , MetaCyc , UniPathway
Structural data: CSA , EC2PDB
Gene Ontology: GO:0050418
CAS Registry Number: 37256-42-1
UniProtKB/Swiss-Prot: (158) [show] [UniProt]


  1. Taniguchi, H., Mitsui, H., Nakamura, K. and Egami, F.
    Hydoxylamine reductase.
    Ann. Acad. Sci. Fenn. Ser. A II 60: 200-215 (1955).
  2. Walker, G.C. and Nicholas, D.J.D.
    Hydroxylamine reductase from Pseudomonas aeruginosa.
    Biochim. Biophys. Acta 49: 361-368 (1961).
  3. Richter, C.D., Allen, J.W., Higham, C.W., Koppenhofer, A., Zajicek, R.S., Watmough, N.J. and Ferguson, S.J.
    Cytochrome cd1, reductive activation and kinetic analysis of a multifunctional respiratory enzyme.
    J. Biol. Chem. 277: 3093-3100 (2002). [PMID: 11709555]

[EC created 1961, modified 1999, modified 2002]