All Photos(1)



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

lyophilized powder, ≥300 units/g solid

NAD(P)H:Nitrate oxidoreductase
CAS Number:
Enzyme Commission number:
MDL number:


lyophilized powder

Quality Level

specific activity

≥300 units/g solid

shipped in

wet ice

storage temp.


Looking for similar products? Visit Product Comparison Guide

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.


2, 5 units in glass bottle
10 units in poly bottle

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.


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.


Health hazard

Signal Word


Hazard Statements

Hazard Classifications

Resp. Sens. 1

Storage Class Code

13 - Non Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Product Information Sheet

Technical Information

Quotes and Ordering

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
E Duncanson et al.
Molecular & general genetics : MGG, 236(2-3), 275-282 (1993-01-01)
Eleven green individuals were isolated when 95000 M2 plants of barley (Hordeum vulgare L.), mutagenised with azide in the M1, were screened for nitrite accumulation in their leaves after nitrate treatment in the light. The selected plants were maintained in
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
Barbara Dziedzic et al.
Clinica chimica acta; international journal of clinical chemistry, 335(1-2), 65-74 (2003-08-21)
Analysis of NO2-/NO3- in expired breath condensate (EBC) has been proposed as a marker of inflammation in various lung diseases. NO2- and total NO3-/NO2- concentrations were determined in EBC collected from healthy and asthmatic subjects. The NO3- was first reduced
E Fernández et al.
Biochimica et biophysica acta, 657(1), 1-12 (1981-01-15)
In vitro complementation of the soluble assimilatory NAD(P)H-nitrate reductase (NAD(P)H:nitrate oxidoreductase, EC was attained by mixing cell-free preparations of Chlamydomonas reinhardii mutant 104, uniquely possessing nitrate-inducible NAD(P)H-cytochrome c reductase, and mutant 305 which possesses solely the nitrate-inducible FMNH2- and

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service