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Key Documents

SRP6539

Sigma-Aldrich

NQO1 human

recombinant, expressed in E. coli, ≥90% (SDS-PAGE)

Synonym(s):

Azoreductase, DT-Diaphorase (DTD), Dioxin-inducible 1, Disphorase-4 (DIA4), Menadione Reductase, NAD(P)H Dehydrogenase (Quinine) 1 (NQO1), NAD(P)H Quinone Oxireductase, Phylloquinone Reductase, Quinone Oxidoreductase 1, Quinone Reductase 1 (QR1)

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About This Item

UNSPSC Code:
12352200
NACRES:
NA.77

biological source

human

recombinant

expressed in E. coli

Assay

≥90% (SDS-PAGE)

form

liquid

mol wt

~30 kDa (Human NQO1 aa 1-274 is fused at the C-terminus to a His-tag.)

packaging

pkg of 10 and 50 μg

impurities

<0.1 EU/μg endotoxin (LAL test)

UniProt accession no.

P15559

shipped in

wet ice

storage temp.

−20°C

Gene Information

human ... NQO1(1728)

General description

Research area: Cell signaling. NQO1 (NAD(P)H quinone dehydrogenase 1) is an obligate two-electron reductase. It is a cytoplasmic, homodimeric protein, with one FAD molecule per monomer. This gene is localized to human chromosome 16q23. It shows a wide range of tissue expression.

Biochem/physiol Actions

NQO1 (NAD(P)H quinone dehydrogenase 1) uses NADH or NADPH as a reducing cofactor, and is characterized by its inhibition by dicoumarol. It is thought to confer protection against natural and exogenous quinones. It is involved in the conversion of benzene derived quinones to less toxic hydroquinones, and participates in benzene-associated hematotoxicity. It is involved in the reduction and eventual activation of few chemotherapeutic drugs and of environmental carcinogens, such as heterocyclic amines, nitroaromatic compounds, and possibly cigarette smoke particulate. C609T null variant of this gene is linked with breast cancer susceptibility in north Indian patients. NQO1 is up-regulated in serous ovarian carcinoma, and this expression is linked with poor prognosis; hence, this gene has potential as biomarker for the same.

Physical form

0.2 μm-filtered solution in 50 mM Tris-Cl, pH 8.0, containing 1 mM DTT.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H319

Hazard Classifications

Eye Irrit. 2

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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High expression of NQO1 is associated with poor prognosis in serous ovarian carcinoma.
Cui X, et al.
BMC Cancer, 15:244 (2015)
The C609T (Pro187Ser) Null Polymorphism of the NQO1 Gene Contributes Significantly to Breast Cancer Susceptibility in North Indian Populations: a Case Control Study.
Yadav P, et al.
Asian Pacific Journal of Cancer Prevention, 17(3), 1215-1219 (2016)
NAD(P)H:quinone acceptor oxidoreductase 1 (NQO1), a multifunctional antioxidant enzyme and exceptionally versatile cytoprotector.
Dinkova-Kostova AT and Talalay P.
Archives of Biochemistry and Biophysics, 501(1), 116-123 (2010)
Prevalence of the inactivating 609C-->T polymorphism in the NAD(P)H:quinone oxidoreductase (NQO1) gene in patients with primary and therapy-related myeloid leukemia.
Larson RA, et al.
Blood, 94(2), 803-807 (1999)
D Ross et al.
Chemico-biological interactions, 129(1-2), 77-97 (2001-01-13)
NAD(P)H:quinone oxidoreductase 1 (NQO1) is an obligate two-electron reductase that is involved in chemoprotection and can also bioactivate certain antitumor quinones. This review focuses on detoxification reactions catalyzed by NQO1 and its role in antioxidant defense via the generation of
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