Enzyme Nomenclature. Recommendations
EC 1.7.2.1 nitrite reductase (NO-forming)
EC 1.7.2.2 nitrite reductase (cytochrome; ammonia-forming)
EC 1.7.2.3 rimethylamine-N-oxide reductase
EC 1.7.2.4 nitrous-oxide reductase
EC 1.7.2.5 nitric oxide reductase (cytochrome c)
EC 1.7.2.6 hydroxylamine dehydrogenase
EC 1.7.2.7 hydrazine synthase
EC 1.7.2.8 hydrazine dehydrogenase
EC 1.7.2.9 hydroxylamine oxidase