Nitrate reductase (NADPH)

Nitrate reductase (NADPH) (EC 1.7.1.3, assimilatory nitrate reductase, assimilatory reduced nicotinamide adenine dinucleotide phosphate-nitrate reductase, NADPH-nitrate reductase, assimilatory NADPH-nitrate reductase, triphosphopyridine nucleotide-nitrate reductase, NADPH:nitrate reductase, nitrate reductase (NADPH₂), NADPH₂:nitrate oxidoreductase) is an enzyme with systematic name nitrite:NADP⁺ oxidoreductase.^[1][2][3][4] This enzyme catalises the following chemical reaction

nitrite + NADP⁺ + H₂O ${\displaystyle \rightleftharpoons }$ nitrate + NADPH + H⁺

Nitrate reductase is an iron-sulfur molybdenum flavoprotein.