ID 1.7.2.6 DE hydroxylamine dehydrogenase. AN hydroxylamine oxidase. AN hydroxylamine oxidoreductase. CA 4 Fe(III)-[cytochrome c] + H2O + hydroxylamine = 4 Fe(II)-[cytochrome c] CA + 5 H(+) + nitrite. CC -!- The enzymes from the nitrifying bacterium Nitrosomonas europaea and CC the methylotrophic bacterium Methylococcus capsulatus are CC hemoproteins with seven c-type hemes and one specialized P460-type CC heme per subunit. CC -!- The enzyme converts hydroxylamine to nitrite via an enzyme-bound CC nitroxyl intermediate. CC -!- While nitrite is the main product, the enzyme from Nitrosomonas CC europaea can also produce nitric oxide by catalyzing the activity of CC EC 1.7.2.9. CC -!- Formerly EC 1.7.3.4. DR Q50925, HAO_NITEU ; P0DV45, NRHAO_KUEST; //