Quinone Reductase

Quinones, a class of organic compounds, are formally derived from aromatic compounds and are a subset of the quinoid family which also contains the quinone imines and the quinone methides. NQO1 (QR1, EC 1.6.99.2), also referred to as DT-diaphorase (formerly), nicotinamide quinone oxidoreductase 1, quinone reductase type 1, or menadione reductase, is a cytosolic flavoenzyme. Another member of the quinone oxidoreductases family is NQO2 (QR2, EC 1.10.99.2) which is also a FAD bound protein (25 kDa) and closely related to NQO1. In addition to NQO1 and NQO2 found in humans, an ancient NQO3 subfamily exists in eubacteria, NQO4 subfamily in fungi, and NQO5 subfamily in archaebacteria^[1]^[2].

References:

[1]. Rashid MH, et al. Interactions of the antioxidant enzymes NAD(P)H: Quinone oxidoreductase 1 (NQO1) and NRH: Quinone oxidoreductase 2 (NQO2) with pharmacological agents, endogenous biochemicals and environmental contaminants. Chem Biol Interact. 2021 Aug 25;345:109574.

[2]. Cuendet M, et al. Quinone reductase induction as a biomarker for cancer chemoprevention. J Nat Prod. 2006 Mar;69(3):460-3.

Quinone Reductase Related Products (8):

By Effects:	Substrates (2) Inhibitors (4) Activator (1)

Cat. No.	Product Name	Effect	Purity	Chemical Structure

HY-12346

FH1	Inhibitor	98.94%
FH1 (NSC 12407) enhances hepatocyte functions, and promotes the differentiation of induced pluripotent stem (iPS)-derived hepatocytes toward a phenotype more mature and the maturation of well-differentiated cultures of hepatocyte-like cells (iHeps).

HY-125027

Isobutyl-deoxynyboquinone	Substrate	99.70%
Isobutyl-deoxynyboquinone (IB-DNQ) is a selective substrate for NAD(P)H:quinone oxidoreductase (NQO1). Isobutyl-deoxynyboquinone can be used for the research of anticancer.

HY-100367

ES 936	Inhibitor
ES 936 is a potent and specific NQO1 inhibitor, effective at concentrations over 1000 times lower than the non-specific inhibitor Dicoumarol (HY-N0645). NQO1 is generally considered a detoxification enzyme, capable of directly reducing quinones to hydroquinones, which in turn prevents the formation of reactive oxygen species arising from redox cycling. ES 936 can be utilized in cancer research.

HY-114315

NQO1 substrate	Substrate	98.02%
NQO1 substrate acts as an efficient NQO1 substrate and may be a new option for the treatment of NQO1-overexpresssing drug-resistant NSCLC.

HY-123903

Tanshindiol B	Activator
Tanshindiol B, a naphthaquinone diterpene, inhibits glioblastoma (GBM) growth by induction of noptosis (NQO1-dependent necrosis).

HY-170947

Antitumor agent-195	Inhibitor
Antitumor agent-195 (compound 16c) is a dual targeting agent of STAT3 and NQO1. Antitumor agent-195 significantly inhibits phosphorylation of STAT3 at Tyr705 at a concentration of 1 μM and effectively induce Apoptosis in MDAMB-231 and MDA-MB-468 breast cancer cells. Antitumor agent-195 as a NQO1 substrate strongly increases ROS generation and causes severe DNA damage in a dose-dependent manner. Antitumor agent-195 shows encouraging anti-tumor efficacy in the MDA-MB-231 xenograft model.

HY-169842

NSC 645827	Inhibitor
NSC 645827 is an inhibitor for NAD(P)H: quinone oxidoreductase 1 (NQO1) with an IC₅₀ of 0.7 μM.

HY-121425

Dunnione
Dunnione (CompoundⅠ) is a pigment. Dunnione can be isolated from the leaves of Didymocarpus pedicellata.

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