Nitrate reductase (NAD(P)H)

{{Infobox enzyme

| Name = Nitrate reductase (NAD(P)H)

| EC_number = 1.7.1.2

| CAS_number = 9029-27-0

| GO_code =

| image =

| width =

| caption =

}}

Nitrate reductase (NAD(P)H) ({{EC number|1.7.1.2}}, assimilatory nitrate reductase, assimilatory NAD(P)H-nitrate reductase, NAD(P)H bispecific nitrate reductase, nitrate reductase (reduced nicotinamide adenine dinucleotide (phosphate)), nitrate reductase NAD(P)H, NAD(P)H-nitrate reductase, nitrate reductase [NAD(P)H₂], NAD(P)H₂:nitrate oxidoreductase) is an enzyme with systematic name nitrite:NAD(P)⁺ oxidoreductase.{{cite book | chapter = Nitrate reductases | title = The Enzymes |author1 = Nason, A. |year = 1963 |volume = 7 |pages = 587–607 |editor = Boyer, P.D. |author2 =Lardy, H. |author3 =Myrbäck, K. |edition = 2nd |publisher = Academic Press |location = New York }}{{cite journal | vauthors = Paneque A, Del Campo FF, Ramírez JM, Losada M | title = Flavin nucleotide nitrate reductase from spinach | journal = Biochimica et Biophysica Acta (BBA) - Biophysics Including Photosynthesis | volume = 109 | issue = 1 | pages = 79–85 | date = September 1965 | pmid = 5864033 | doi = 10.1016/0926-6585(65)90092-0 }}{{cite journal | vauthors = Campbell WH | title = Structure and function of eukaryotic NAD(P)H:nitrate reductase | journal = Cellular and Molecular Life Sciences | volume = 58 | issue = 2 | pages = 194–204 | date = February 2001 | pmid = 11289301 | doi = 10.1007/pl00000847 | pmc = 11146515 }}{{cite journal | vauthors = Berks BC, Ferguson SJ, Moir JW, Richardson DJ | title = Enzymes and associated electron transport systems that catalyse the respiratory reduction of nitrogen oxides and oxyanions | journal = Biochimica et Biophysica Acta (BBA) - Bioenergetics | volume = 1232 | issue = 3 | pages = 97–173 | date = December 1995 | pmid = 8534676 | doi = 10.1016/0005-2728(95)00092-5 | doi-access = free }} This enzyme catalises the following chemical reaction

: nitrite + NAD(P)⁺ + H₂O $\backslash rightleftharpoons$ nitrate + NAD(P)H + H⁺

Nitrate reductase is an iron-sulfur molybdenum flavoprotein.