N7265
Nitrate Reductase (NAD[P]H) from Aspergillus niger
lyophilized powder, ≥300 units/g solid
Synonyme(s) :
NAD(P)H:Nitrate oxidoreductase
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About This Item
Numéro CAS:
Numéro MDL:
Code UNSPSC :
12352204
Nomenclature NACRES :
NA.54
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Forme
lyophilized powder
Niveau de qualité
Activité spécifique
≥300 units/g solid
Conditions d'expédition
wet ice
Température de stockage
−20°C
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Description générale
Nitrate reductase (NAD[P]H) is expressed in variety of organisms including bacteria, fungi, algae, and higher plants which have capacity to use nitrate as their sole source of nitrogen.Experimental studies show that nitrate reductase (NAD[P]H) is 180,000Daltons.
Actions biochimiques/physiologiques
Nitrate Reductase (NAD[P]H) catalyzes the reduction of nitrate to nitrite. In addition, it also catalyzes the reduction of NADPH-cytochrome c, FADH2-nitrate. Nitrate reductase also has reduced methyl viologen-nitrate reductase activities.
Attention
light and moisture sensitive
Définition de l'unité
One unit will reduce 1.0 μmole of nitrate per min in the presence of β-NADPH at pH 7.5 at 25 °C.
Mention d'avertissement
Danger
Mentions de danger
Conseils de prudence
Classification des risques
Resp. Sens. 1
Code de la classe de stockage
11 - Combustible Solids
Classe de danger pour l'eau (WGK)
WGK 3
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
Équipement de protection individuelle
Eyeshields, Gloves, type N95 (US)
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Les clients ont également consulté
G Unden et al.
Molecular microbiology, 25(2), 205-210 (1997-07-01)
The FNR (fumarate and nitrate reductase regulation) protein of Escherichia coli is an oxygen-responsive transcriptional regulator required for the switch from aerobic to anaerobic metabolism. In the absence of oxygen, FNR changes from the inactive to the active state. The
R C Chiang et al.
Molecular microbiology, 24(5), 1049-1060 (1997-06-01)
The Escherichia coli NarX, NarQ, NarL and NarP proteins comprise a two-component regulatory system that controls the expression of many anaerobic electron-transport and fermentation-related genes in response to nitrate and nitrite. Either of the two sensor-transmitter proteins, NarX and NarQ
W H Campbell
Cellular and molecular life sciences : CMLS, 58(2), 194-204 (2001-04-06)
Pyridine nucleotide-dependent nitrate reductases (NRs; EC 1.6.6.1-3) are molybdenum-containing enzymes found in eukaryotic organisms which assimilate nitrate. NR is a homodimer with an approximately 100 kDa polypeptide which folds into stable domains housing each of the enzyme's redox cofactors--FAD, heme-Fe
Purification and properties of assimilatory nitrate reductase [NAD(P)H] from Ankistrodesmus braunii.
M A de la Rosa et al.
European journal of biochemistry, 106(1), 249-256 (1980-05-01)
Assimilatory nitrate reductase [NAD(P)H] (EC 1.6.6.2) from Ankistrodesmus braunii has been purified to homogeneity by a simple procedure that utilizes as the main step affinity chromatography on Blue-Sepharose. The best enzyme preparation has a specific activity of 61.25 units/mg protein.
J Miyazaki et al.
Molecular & general genetics : MGG, 228(3), 329-334 (1991-09-01)
Barley (Hordeum vulgare L.) has both NADH-specific and NAD(P)H-bispecific nitrate reductases. Genomic and cDNA clones of the NADH nitrate reductase have been sequenced. In this study, a genomic clone (pMJ4.1) of a second type of nitrate reductase was isolated from
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