Nitrite Reductase (NAD(P)H)

Assimilatory Nitrite Reductase; NAD(P)H-Nitrite Reductase; NADH-Dependent Nitrite Reductase; NADH-Nitrite Oxidoreductase; NADPH-Nitrite Reductase; Nitrite Reductase (NAD(P)H(2)); Nitrite Reductase (Reduced Nicotinamide Adenine Dinucleotide (Phosphate))
An enzyme found primarily in BACTERIA and FUNGI that catalyzes the oxidation of AMMONIUM HYDROXIDE to nitrite. It is an iron-sulfur HEME; FLAVOPROTEIN containing SIROHEME and can utilize both NAD and NADP as cofactors. This enzyme was formerly classified as EC 1.6.6.4.