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Merck

N7265

Sigma-Aldrich

Nitrate Reductase (NAD[P]H) from Aspergillus niger

lyophilized powder, ≥300 units/g solid

Sinónimos:

NAD(P)H:Nitrate oxidoreductase

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About This Item

Número de CAS:
Comisión internacional de enzimas:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54

form

lyophilized powder

specific activity

≥300 units/g solid

shipped in

wet ice

storage temp.

−20°C

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General description

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.

Biochem/physiol Actions

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.

Caution

light and moisture sensitive

Unit Definition

One unit will reduce 1.0 μmole of nitrate per min in the presence of β-NADPH at pH 7.5 at 25 °C.

pictograms

Health hazard

signalword

Danger

hcodes

Hazard Classifications

Resp. Sens. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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R L Warner et al.
Plant physiology, 91, 947-953 (1989-01-01)
Barley (Hordeum vulgare L.) has NADH-specific and NAD(P)H-bispecific nitrate reductase isozymes. Four isogenic lines with different nitrate reductase isozyme combinations were used to determine the role of NADH and NAD(P)H nitrate reductases on nitrate transport and assimilation in barley seedlings.
P C Allen et al.
Poultry science, 76(6), 822-827 (1997-06-01)
Two experiments were conducted to determine effects of diets containing n-3 fatty acids (n-3FA) from whole as well as ground flaxseed on the performance of broilers during coccidia infections. Diets were fed from 1 d of age through 3 wk
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
P Hilliquin et al.
Arthritis and rheumatism, 40(8), 1512-1517 (1997-08-01)
Nitric oxide (NO) is a free radical involved in inflammation and immune reactions. The presence of NO is usually assessed by assaying its degradation products, nitrite and nitrate. NO binds to thiol-containing proteins to form S-nitrosoproteins (S-NP). The aim of
Nilesh Dharajiya et al.
The Journal of allergy and clinical immunology, 119(3), 646-653 (2007-03-06)
Ragweed extract (RWE) contains NADPH oxidases that induce oxidative stress in the airways independent of adaptive immunity (signal 1) and augment antigen (signal 2)-induced allergic airway inflammation. To test whether inhibiting signal 1 by administering antioxidants inhibits allergic airway inflammation

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