Search EC Number

1.7.99.1

hydroxylamine reductase

1.7.99.2

nitric-oxide reductase

deleted

1.7.99.3

nitrite reductase

deleted, now included with EC 1.7.2.1

1.7.99.4

nitrate reductase

transferred to EC 1.7.1.1, nitrate reductase (NADH), EC 1.7.1.2, nitrate reductase [NAD(P)H], EC 1.7.1.3, nitrate reductase (NADPH), EC 1.7.5.1, nitrate reductase (quinone), EC 1.7.7.2, nitrate reductase (ferredoxin), EC 1.9.6.1, nitrate reductase (cytochrome)

1.7.99.5

5,10-methylenetetrahydrofolate reductase (FADH2)

deleted, now included with EC 1.5.1.20, methylenetetrahydrofolate reductase [NAD(P)H]. Based on the reference, it had been thought that this was a separate enzyme from EC 1.5.1.20 but the reference upon which the entry was based has since been disproved

1.7.99.6

nitrous-oxide reductase

transferred to EC 1.7.2.4

1.7.99.7

nitric-oxide reductase

transferred to EC 1.7.2.5

1.7.99.8

hydrazine oxidoreductase

transferred to EC 1.7.2.8