Accepted name: nitrate reductase (NADPH)
Reaction: nitrite + NADP+ + H2O = nitrate + NADPH + H+
Other name(s): assimilatory nitrate reductase (ambiguous); 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
Systematic name: nitrite:NADP+ oxidoreductase
Comments: An iron-sulfur molybdenum flavoprotein.
1.  Nason, A. Nitrate reductases. In: Boyer, P.D., Lardy, H. and Myrbäck, K. (Ed.), The Enzymes, 2nd edn, vol. 7, Academic Press, New York, 1963, pp. 587–607.
2.  Nason, A. and Evans, H.J. Triphosphopyridine nucleotide-nitrate reductase in Neurospora. J. Biol. Chem. 202 (1953) 655–673. [PMID: 13061490]
3.  Nicholas, D.J.D. and Nason, A. Molybdenum and nitrate reductase. II. Molybdenum as a constituent of nitrate reductase. J. Biol. Chem. 207 (1954) 353–360. [PMID: 13152110]
4.  Taniguchi, H., Mitsui, H., Nakamura, K. and Egami, F. Ann. Acad. Sci. Fenn. Ser. A II 60 (1955) 200.
5.  Berks, B.C., Ferguson, S.J., Moir, J.W. and Richardson, D.J. Enzymes and associated electron transport systems that catalyse the respiratory reduction of nitrogen oxides and oxyanions. Biochim. Biophys. Acta 1232 (1995) 97–173. [PMID: 8534676]
[EC created 1961 as EC, transferred 2002 to EC]