Recombinant Human NAD (P)H dehydrogenase [quinone] 1 (NQO1)

Uniprot Id

P15559

Target Species

Human

Target Name

NQO1

Target Full Name

NAD(P)H dehydrogenase [quinone] 1

Target Function

The enzyme apparently serves as a quinone reductase in connection with conjugation reactions of hydroquinons involved in detoxification pathways as well as in biosynthetic processes such as the vitamin K-dependent gamma-carboxylation of glutamate residues in prothrombin synthesis.

Target Subcellular Location

Cytoplasm.

Target Protein Families

NAD(P)H dehydrogenase (quinone) family

Target Synonyms

Azoreductase; Cytochrome b 5 reductase; DHQU; DIA 4; DIA4; Diaphorase (NADH/NADPH) (cytochrome b 5 reductase); Diaphorase (NADH/NADPH); Diaphorase 4; Dioxin inducible 1; DT diaphorase; DT-diaphorase; DTD; Menadione reductase; NAD(P)H dehydrogenase [quinone] 1; NAD(P)H dehydrogenase quinone 1; NAD(P)H menadione oxidoreductase 1 dioxin inducible; NAD(P)H quinone dehydrogenase 1; NAD(P)H: menadione oxidoreductase 1 dioxin inducible 1; NAD(P)H:menadione oxidoreductase 1; NAD(P)H:Quinone acceptor oxidoreductase type 1; NAD(P)H:quinone oxidoreductase 1; NAD(P)H:quinone oxireductase; NMOR 1; NMOR I; NMOR1; NMORI; NQO 1; NQO1; NQO1_HUMAN; Phylloquinone reductase; QR 1; QR1; Quinone reductase 1

Target Background

This gene is a member of the NAD(P)H dehydrogenase (quinone) family and encodes a cytoplasmic 2-electron reductase. This FAD-binding protein forms homodimers and reduces quinones to hydroquinones. This protein's enzymatic activity prevents the one electron reduction of quinones that results in the production of radical species. Mutations in this gene have been associated with tardive dyskinesia (TD), an increased risk of hematotoxicity after exposure to benzene, and susceptibility to various forms of cancer. Altered expression of this protein has been seen in many tumors and is also associated with Alzheimer's disease (AD). Alternate transcriptional splice variants, encoding different isoforms, have been characterized.