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Symbol NQO1 contributors: mct/npt - updated : 13-11-2014
HGNC name NAD(P)H dehydrogenase, quinone 1
HGNC id 2874
Location 16q22.1      Physical location : 69.743.304 - 69.760.533
Synonym name
  • NAD(P)H menadione oxidoreductase
  • diaphorase (NAD(P)H), cytochrome b-5 reductase
  • azoreductase
  • phylloquinone reductase
  • dioxin-inducible 1
  • Synonym symbol(s) NMOR1, DIA4, DTD, QR1, DHQU
    TYPE functioning gene
    STRUCTURE 17.23 kb     6 Exon(s)
    10 Kb 5' upstream gene genomic sequence study
    MAPPING cloned Y linked Y status confirmed
    Physical map
    NFATC3 16q22.1 nuclear factor of activated T-cells, cytoplasmic, calcineurin-dependent 3 FLJ21918 16q22.1 hypothetical protein FLJ21918 LYPLA3 16q22.1 lysophospholipase 3 (lysosomal phospholipase A2) SLC7A6 16q22.1 solute carrier family 7 (cationic amino acid transporter, y+ system), member 6 FLJ13291 16q22.1 hypothetical protein FLJ13291 FLJ10640 16q22.1 hypothetical protein FLJ10640 FLJ22593 16q22.1 hypothetical protein FLJ22593 SMPD3 16q22.2 sphingomyelin phosphodiesterase 3, neutral membrane (neutral sphingomyelinase II) ZFP90 16q22.1 zinc finger protein 90 homolog (mouse) CDH3 16q22.1 cadherin 3, type 1, P-cadherin (placental) CDH1 16q22.1 cadherin 1, type 1, E-cadherin (epithelial) FLJ12331 16q22.1 hypothetical protein FLJ12331 HAS3 16q22.1 hyaluronan synthase 3 FLJ20400 16q22.1 CTF8, chromosome transmission fidelity factor 8 homolog (S. cerevisiae) CIRH1A 16q22.1 cirrhosis, autosomal recessive 1A (cirhin) SNTB2 16q22-q23 syntrophin, beta 2 (dystrophin-associated protein A1, 59kDa, basic component 2) VPS4A 16q23.1 vacuolar protein sorting 4A (yeast) COG8 16q22.1 component of oligomeric golgi complex 8 PDF 16q22.1 peptide deformylase-like protein CGI-37 16q22.1 comparative gene identification transcript 37 MGC23911 16q22.1 hypothetical protein MGC23911 TERF2 16q22.1 telomeric repeat binding factor 2 CYB5-M 16q22.1 cytochrome b5 outer mitochondrial membrane precursor NFAT5 16q22.1 nuclear factor of activated T-cells 5, tonicity-responsive NQO1 16q12-q22 NAD(P)H dehydrogenase, quinone 1 NOB1P 16q22.3 likely ortholog of mouse nin one binding protein LOC388285 16 hypothetical gene supported by U89867; NM_007363 WWP2 16q22.1 Nedd-4-like ubiquitin-protein ligase LOC348174 16q22.1 secretory protein LOC348174 LOC390737 16 similar to MGC9515 protein LOC283970 16q22.1 hypothetical protein LOC283970 PDPR 16q22.1 pyruvate dehydrogenase phosphatase regulatory subunit MGC34761 16q22.1 hypothetical protein MGC34761 LOC388286 16 hypothetical gene supported by AF395444; NM_014006 MTR3 16q22.1 homolog of yeast mRNA transport regulator 3 AARS 16q22.1 alanyl-tRNA synthetase DDX19 16q22.1 DEAD (Asp-Glu-Ala-As) box polypeptide 19 FLJ11126 16q22.1 hypothetical protein FLJ11126 SIAT4B 16q22.3 sialyltransferase 4B (beta-galactoside alpha-2,3-sialyltransferase) FUK 16q22.1 fucokinase COG4 16q22.3 component of oligomeric golgi complex 4 SF3B3 16q22.1 splicing factor 3b, subunit 3, 130kDa MGC34647 16q22.1 hypothetical protein MGC34647 LOC92154 16q22.1 hypothetical protein BC002770 FLJ10305 16q22.1 hypothetical protein FLJ10305 HYDIN 16q22.2 hydrocephalus inducing LOC388287 16 similar to hydrocephalus-inducing protein FLJ14665 16q22.2 hypothetical protein FLJ14665 DKFZp434L0850 16q22.2 hypothetical protein DKFZp434L0850 FLJ11171 16q22.2 hypothetical protein FLJ11171 LOC388288 16 similar to hypothetical protein (L1H 3 region) - human
    TRANSCRIPTS type messenger
    identificationnb exonstypebpproduct
    ProteinkDaAAspecific expressionYearPubmed
    6 - 2601 - 274 - 2000 10908561
    5 - 2499 - 240 - 2000 10908561
    5 - 2487 - 236 - 2000 10908561
    Type ubiquitous
       expressed in (based on citations)
    SystemOrgan level 1Organ level 2Organ level 3Organ level 4LevelPubmedSpeciesStageRna symbol
    Digestiveesophagus   highly
     liver   highly
     mouth   highly
    Lymphoid/Immunelymph node    
    Skin/Tegumentskin   highly
    Visualeyeanterior segment   
    cell lineage
    cell lines
    at STAGE
  • four potential polyadenylation sites
  • mono polymer homomer , dimer
  • NAD(P)H dehydrogenase (quinone) family
  • CATEGORY enzyme
    SUBCELLULAR LOCALIZATION     intracellular
    intracellular,cytoplasm,cytoskeleton,microtubule,mitotic spindle
  • is primarily located in the cytosol, however, lower levels of NQO1 have also been found in the nucleus, and also associated with mitotic spindles in cells undergoing division
  • basic FUNCTION
  • involved in detoxification pathways as well as in biosynthetic processes such as the vitamin k-dependent gamma-carboxylation of glutamate residues in prothrombin synthesis
  • may be involved in nitric oxide biosynthesis, response to toxin, synaptic transmission, cholinergic, xenobiotic metabolism
  • plays a role in suppressing inflammatory response and in attenuation of macrophage migration induced by LPS
  • belongs to the phase II detoxifying enzymes that are induced to protect against electrophilic insults, oxidative stress, and ionizing radiation
  • original role in the regulation of mRNA translation via the control of EIF4GI stability by the proteasome
  • rescue proteins containing intrinsically unstructured domains, such as TP53 and TP73, from degradation by the 20S proteasome
  • FAD containing quinone reductase that catalyzes the 2-electron reduction of a broad range of quinones
  • plays a key role in suppressing ionizing radiation (IR)-induced centrosome amplification and aneuploidy through a direct interaction with Aurora-A
  • xenobiotic metabolizing enzyme that detoxifies chemical stressors and antioxidants, providing cytoprotection in normal tissues
    PHYSIOLOGICAL PROCESS detoxification
    text dependent two-electrons reduction of quinones derived from the oxidation of phenolic metabolites of benzene
    metabolism drug
    a component
  • SQSTM1-NFE2L2-NQO1 cascade functions to assure mammalian longevity by stabilizing mitochondrial integrity
    small molecule cofactor,
  • FAD
  • protein
  • REXO4 is involved in the activation of NQO1 gene activity, enhanced in the presence of ESR2
  • interacting with PDLIM4
  • NQO1 interacts with and activates SIRT2 in an NAD-dependent manner
  • cell & other
    induced by dioxine
    repressed by TCF7L1
    Other regulated by NFE2L2
    corresponding disease(s)
    Other morbid association(s)
    TypeGene ModificationChromosome rearrangementProtein expressionProtein Function
    constitutional germinal mutation      
    in tardive dyskinesia
    tumoral     --over  
    associated with breast cancer progression
  • to benzene toxicity
  • modifying the susceptibility to acute myeloid leukemia
  • to various forms of cancer
  • to breast cancer with poor survival
  • to artery plaques in type 2 diabetic patients
  • Variant & Polymorphism other
  • Cb09T TT phenotype with no NQO1 activity (susceptible)
  • allele 2 and 3 increases the risk of ALL
  • an increased risk of hematotoxicity after exposure to benzene
  • homozygote missense variant increasing the risk of breast cancer with poor survival
  • C609T polymorphism is associated with carotid artery plaques in type 2 diabetic patients (Han 2009)
  • Candidate gene prognostic and predictive marker for breast cancer
  • may be a potential biomarker for poor prognostic evaluation of breast cancers
  • Therapy target