IUBMB Enzyme Nomenclature


Accepted name: hydroxylamine reductase

Reaction: NH3 + H2O + acceptor = hydroxylamine + reduced acceptor

Other name(s): hydroxylamine (acceptor) reductase; ammonia:(acceptor) oxidoreductase

Systematic name: ammonia:acceptor oxidoreductase

Comments: 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: BRENDA, EXPASY, KEGG, Metacyc, PDB, CAS registry number: 37256-42-1


1. Taniguchi, H., Mitsui, H., Nakamura, K. and Egami, F. Hydoxylamine reductase. Ann. Acad. Sci. Fenn. Ser. A II 60 (1955) 200-215.

2. Walker, G.C. and Nicholas, D.J.D. Hydroxylamine reductase from Pseudomonas aeruginosa. Biochim. Biophys. Acta 49 (1961) 361-368.

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 (2002) 3093-3100.[PMID: 11709555]

[EC created 1961, modified 1999, modified 2002]

Return to EC 1.7.99 home page
Return to EC 1.7 home page
Return to EC 1 home page
Return to Enzymes home page
Return to IUBMB Biochemical Nomenclature home page