General Information

Mainterm1,4-BENZOQUINONE
CAS Reg.No.(or other ID)106-51-4
Regnum 177.2420

From www.fda.gov

Computed Descriptors

Download SDF
2D Structure
CID4650
IUPAC Namecyclohexa-2,5-diene-1,4-dione
InChIInChI=1S/C6H4O2/c7-5-1-2-6(8)4-3-5/h1-4H
InChI KeyAZQWKYJCGOJGHM-UHFFFAOYSA-N
Canonical SMILESC1=CC(=O)C=CC1=O
Molecular FormulaC6H4O2
Wikipediaquinone

From Pubchem


Computed Properties

Property Name Property Value
Molecular Weight108.096
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count2
Rotatable Bond Count0
Complexity149.0
CACTVS Substructure Key Fingerprint A A A D c Y B g M A A A A A A A A A A A A A A A A A A A A A A A A A A g A A A A A A A A A A A A A A A A G g A A A A A A C A S A g A A A A A A A A A C I A K B S A A A A A A A g A A A I C A A A A E g A A A A A A A A A A A A A A A A I A Y I A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A = =
Topological Polar Surface Area34.1
Monoisotopic Mass108.021
Exact Mass108.021
Compound Is CanonicalizedTrue
Formal Charge0
Heavy Atom Count8
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Isotope Atom Count0
Covalently-Bonded Unit Count1

From Pubchem


Food Additives Biosynthesis/Degradation


ADMET Predicted Profile --- Classification

Model Result Probability
Absorption
Blood-Brain BarrierBBB+0.9611
Human Intestinal AbsorptionHIA+0.9973
Caco-2 PermeabilityCaco2+0.8423
P-glycoprotein SubstrateNon-substrate0.8285
P-glycoprotein InhibitorNon-inhibitor0.8618
Non-inhibitor0.9656
Renal Organic Cation TransporterNon-inhibitor0.8655
Distribution
Subcellular localizationMitochondria0.7591
Metabolism
CYP450 2C9 SubstrateNon-substrate0.8224
CYP450 2D6 SubstrateNon-substrate0.9244
CYP450 3A4 SubstrateNon-substrate0.7518
CYP450 1A2 InhibitorNon-inhibitor0.9045
CYP450 2C9 InhibitorNon-inhibitor0.9149
CYP450 2D6 InhibitorNon-inhibitor0.9231
CYP450 2C19 InhibitorNon-inhibitor0.9025
CYP450 3A4 InhibitorNon-inhibitor0.9311
CYP Inhibitory PromiscuityLow CYP Inhibitory Promiscuity0.9133
Excretion
Toxicity
Human Ether-a-go-go-Related Gene InhibitionWeak inhibitor0.8933
Non-inhibitor0.9862
AMES ToxicityNon AMES toxic0.9132
CarcinogensNon-carcinogens0.7986
Fish ToxicityLow FHMT0.5852
Tetrahymena Pyriformis ToxicityHigh TPT0.9442
Honey Bee ToxicityHigh HBT0.8207
BiodegradationReady biodegradable0.7273
Acute Oral ToxicityII0.7537
Carcinogenicity (Three-class)Non-required0.6638

From admetSAR


ADMET Predicted Profile --- Regression

Model Value Unit
Absorption
Aqueous solubility-0.9279LogS
Caco-2 Permeability1.7819LogPapp, cm/s
Distribution
Metabolism
Excretion
Toxicity
Rat Acute Toxicity2.8887LD50, mol/kg
Fish Toxicity1.3110pLC50, mg/L
Tetrahymena Pyriformis Toxicity0.6020pIGC50, ug/L

From admetSAR


Toxicity Profile

Route of ExposureNone
Mechanism of ToxicityQuinone is a cholinesterase or acetylcholinesterase (AChE) inhibitor. A cholinesterase inhibitor (or 'anticholinesterase') suppresses the action of acetylcholinesterase. Because of its essential function, chemicals that interfere with the action of acetylcholinesterase are potent neurotoxins, causing excessive salivation and eye-watering in low doses, followed by muscle spasms and ultimately death. Nerve gases and many substances used in insecticides have been shown to act by binding a serine in the active site of acetylcholine esterase, inhibiting the enzyme completely. Acetylcholine esterase breaks down the neurotransmitter acetylcholine, which is released at nerve and muscle junctions, in order to allow the muscle or organ to relax. The result of acetylcholine esterase inhibition is that acetylcholine builds up and continues to act so that any nerve impulses are continually transmitted and muscle contractions do not stop. Among the most common acetylcholinesterase inhibitors are phosphorus-based compounds, which are designed to bind to the active site of the enzyme. The structural requirements are a phosphorus atom bearing two lipophilic groups, a leaving group (such as a halide or thiocyanate), and a terminal oxygen.
MetabolismParaoxonase (PON1) is a key enzyme in the metabolism of organophosphates. PON1 can inactivate some organophosphates through hydrolysis. PON1 hydrolyzes the active metabolites in several organophosphates insecticides as well as, nerve agents such as soman, sarin, and VX. The presence of PON1 polymorphisms causes there to be different enzyme levels and catalytic efficiency of this esterase, which in turn suggests that different individuals may be more susceptible to the toxic effect of OP exposure.
Toxicity ValuesNone
Lethal DoseNone
Carcinogenicity (IARC Classification)3, not classifiable as to its carcinogenicity to humans.
Minimum Risk LevelNone
Health EffectsAcute exposure to cholinesterase inhibitors can cause a cholinergic crisis characterized by severe nausea/vomiting, salivation, sweating, bradycardia, hypotension, collapse, and convulsions. Increasing muscle weakness is a possibility and may result in death if respiratory muscles are involved. Accumulation of ACh at motor nerves causes overstimulation of nicotinic expression at the neuromuscular junction. When this occurs symptoms such as muscle weakness, fatigue, muscle cramps, fasciculation, and paralysis can be seen. When there is an accumulation of ACh at autonomic ganglia this causes overstimulation of nicotinic expression in the sympathetic system. Symptoms associated with this are hypertension, and hypoglycemia. Overstimulation of nicotinic acetylcholine receptors in the central nervous system, due to accumulation of ACh, results in anxiety, headache, convulsions, ataxia, depression of respiration and circulation, tremor, general weakness, and potentially coma. When there is expression of muscarinic overstimulation due to excess acetylcholine at muscarinic acetylcholine receptors symptoms of visual disturbances, tightness in chest, wheezing due to bronchoconstriction, increased bronchial secretions, increased salivation, lacrimation, sweating, peristalsis, and urination can occur. Certain reproductive effects in fertility, growth, and development for males and females have been linked specifically to organophosphate pesticide exposure. Most of the research on reproductive effects has been conducted on farmers working with pesticides and insecticdes in rural areas. In females menstrual cycle disturbances, longer pregnancies, spontaneous abortions, stillbirths, and some developmental effects in offspring have been linked to organophosphate pesticide exposure. Prenatal exposure has been linked to impaired fetal growth and development. Neurotoxic effects have also been linked to poisoning with OP pesticides causing four neurotoxic effects in humans: cholinergic syndrome, intermediate syndrome, organophosphate-induced delayed polyneuropathy (OPIDP), and chronic organophosphate-induced neuropsychiatric disorder (COPIND). These syndromes result after acute and chronic exposure to OP pesticides.
TreatmentIf the compound has been ingested, rapid gastric lavage should be performed using 5% sodium bicarbonate. For skin contact, the skin should be washed with soap and water. If the compound has entered the eyes, they should be washed with large quantities of isotonic saline or water. In serious cases, atropine and/or pralidoxime should be administered. Anti-cholinergic drugs work to counteract the effects of excess acetylcholine and reactivate AChE. Atropine can be used as an antidote in conjunction with pralidoxime or other pyridinium oximes (such as trimedoxime or obidoxime), though the use of '-oximes' has been found to be of no benefit, or possibly harmful, in at least two meta-analyses. Atropine is a muscarinic antagonist, and thus blocks the action of acetylcholine peripherally.
Reference
  1. Gaskell M, McLuckie KI, Farmer PB: Comparison of the repair of DNA damage induced by the benzene metabolites hydroquinone and p-benzoquinone: a role for hydroquinone in benzene genotoxicity. Carcinogenesis. 2005 Mar;26(3):673-80. Epub 2004 Dec 23.[15618234 ]
  2. Fabiani R, De Bartolomeo A, Morozzi G: Involvement of oxygen free radicals in the serum-mediated increase of benzoquinone genotoxicity. Environ Mol Mutagen. 2005 Oct;46(3):156-63.[15920754 ]
  3. Bello RI, Gomez-Diaz C, Navarro F, Alcain FJ, Villalba JM: Expression of NAD(P)H:quinone oxidoreductase 1 in HeLa cells: role of hydrogen peroxide and growth phase. J Biol Chem. 2001 Nov 30;276(48):44379-84. Epub 2001 Sep 20.[11567026 ]
  4. Park S, Geddes TJ, Javitch JA, Kuhn DM: Dopamine prevents nitration of tyrosine hydroxylase by peroxynitrite and nitrogen dioxide: is nitrotyrosine formation an early step in dopamine neuronal damage? J Biol Chem. 2003 Aug 1;278(31):28736-42. Epub 2003 May 27.[12771134 ]
  5. Siegel D, Ryder J, Ross D: NAD(P)H: quinone oxidoreductase 1 expression in human bone marrow endothelial cells. Toxicol Lett. 2001 Dec 15;125(1-3):93-8.[11701227 ]
  6. Roberg K, Johansson U, Ollinger K: Lysosomal release of cathepsin D precedes relocation of cytochrome c and loss of mitochondrial transmembrane potential during apoptosis induced by oxidative stress. Free Radic Biol Med. 1999 Dec;27(11-12):1228-37.[10641715 ]
  7. Kwasnicka-Crawford DA, Vincent SR: Role of a novel dual flavin reductase (NR1) and an associated histidine triad protein (DCS-1) in menadione-induced cytotoxicity. Biochem Biophys Res Commun. 2005 Oct 21;336(2):565-71.[16140270 ]
  8. Yamazaki H, Shibata A, Suzuki M, Nakajima M, Shimada N, Guengerich FP, Yokoi T: Oxidation of troglitazone to a quinone-type metabolite catalyzed by cytochrome P-450 2C8 and P-450 3A4 in human liver microsomes. Drug Metab Dispos. 1999 Nov;27(11):1260-6.[10534310 ]
  9. He K, Woolf TF, Kindt EK, Fielder AE, Talaat RE: Troglitazone quinone formation catalyzed by human and rat CYP3A: an atypical CYP oxidation reaction. Biochem Pharmacol. 2001 Jul 15;62(2):191-8.[11389877 ]
  10. Soucek P: Cytochrome P450 destruction by quinones: comparison of effects in rat and human liver microsomes. Chem Biol Interact. 1999 Aug 1;121(3):223-36.[10462055 ]
  11. Xu L, Eiseman JL, Egorin MJ, D'Argenio DZ: Physiologically-based pharmacokinetics and molecular pharmacodynamics of 17-(allylamino)-17-demethoxygeldanamycin and its active metabolite in tumor-bearing mice. J Pharmacokinet Pharmacodyn. 2003 Jun;30(3):185-219.[14571691 ]
  12. He K, Talaat RE, Woolf TF: Incorporation of an oxygen from water into troglitazone quinone by cytochrome P450 and myeloperoxidase. Drug Metab Dispos. 2004 Apr;32(4):442-6.[15039298 ]
  13. Toyota T, Ueno Y: [Clinical effect and side effect of troglitazone]. Nihon Rinsho. 2000 Feb;58(2):376-82.[10707561 ]
  14. Smith MT: The mechanism of benzene-induced leukemia: a hypothesis and speculations on the causes of leukemia. Environ Health Perspect. 1996 Dec;104 Suppl 6:1219-25.[9118896 ]
  15. Terman A, Neuzil J, Kagedal K, Ollinger K, Brunk UT: Decreased apoptotic response of inclusion-cell disease fibroblasts: a consequence of lysosomal enzyme missorting? Exp Cell Res. 2002 Mar 10;274(1):9-15.[11855852 ]
  16. Mu D, Medzihradszky KF, Adams GW, Mayer P, Hines WM, Burlingame AL, Smith AJ, Cai D, Klinman JP: Primary structures for a mammalian cellular and serum copper amine oxidase. J Biol Chem. 1994 Apr 1;269(13):9926-32.[8144587 ]
  17. Hasegawa T, Matsuzaki M, Takeda A, Kikuchi A, Furukawa K, Shibahara S, Itoyama Y: Increased dopamine and its metabolites in SH-SY5Y neuroblastoma cells that express tyrosinase. J Neurochem. 2003 Oct;87(2):470-5.[14511124 ]
  18. Lin YS, Vermeulen R, Tsai CH, Waidyanatha S, Lan Q, Rothman N, Smith MT, Zhang L, Shen M, Li G, Yin S, Kim S, Rappaport SM: Albumin adducts of electrophilic benzene metabolites in benzene-exposed and control workers. Environ Health Perspect. 2007 Jan;115(1):28-34.[17366815 ]

From T3DB


Taxonomic Classification

KingdomOrganic compounds
SuperclassOrganic oxygen compounds
ClassOrganooxygen compounds
SubclassCarbonyl compounds
Intermediate Tree NodesKetones - Cyclic ketones - Quinones - Benzoquinones
Direct ParentP-benzoquinones
Alternative Parents
Molecular FrameworkAliphatic homomonocyclic compounds
SubstituentsP-benzoquinone - Organic oxide - Hydrocarbon derivative - Aliphatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as p-benzoquinones. These are benzoquinones where the two C=O groups are attached at the 1- and 4-positions, respectively.

From ClassyFire


Targets

General Function:
Serine hydrolase activity
Specific Function:
Terminates signal transduction at the neuromuscular junction by rapid hydrolysis of the acetylcholine released into the synaptic cleft. Role in neuronal apoptosis.
Gene Name:
ACHE
Uniprot ID:
P22303
Molecular Weight:
67795.525 Da
References
  1. Wadkins RM, Hyatt JL, Wei X, Yoon KJ, Wierdl M, Edwards CC, Morton CL, Obenauer JC, Damodaran K, Beroza P, Danks MK, Potter PM: Identification and characterization of novel benzil (diphenylethane-1,2-dione) analogues as inhibitors of mammalian carboxylesterases. J Med Chem. 2005 Apr 21;48(8):2906-15. [15828829 ]
General Function:
Endopeptidase activity
Specific Function:
Thiol protease that cleaves IL-1 beta between an Asp and an Ala, releasing the mature cytokine which is involved in a variety of inflammatory processes. Important for defense against pathogens. Cleaves and activates sterol regulatory element binding proteins (SREBPs). Can also promote apoptosis.
Gene Name:
CASP1
Uniprot ID:
P29466
Molecular Weight:
45158.215 Da
References
  1. Huang FC, Chan WK, Moriarty KJ, Zhang DC, Chang MN, He W, Yu KT, Zilberstein A: Novel cytokine release inhibitors. Part I: Triterpenes. Bioorg Med Chem Lett. 1998 Jul 21;8(14):1883-6. [9873452 ]
General Function:
Methylumbelliferyl-acetate deacetylase activity
Specific Function:
Involved in the detoxification of xenobiotics and in the activation of ester and amide prodrugs. Shows high catalytic efficiency for hydrolysis of cocaine, 4-methylumbelliferyl acetate, heroin and 6-monoacetylmorphine.
Gene Name:
CES2
Uniprot ID:
O00748
Molecular Weight:
61806.41 Da
References
  1. Wadkins RM, Hyatt JL, Wei X, Yoon KJ, Wierdl M, Edwards CC, Morton CL, Obenauer JC, Damodaran K, Beroza P, Danks MK, Potter PM: Identification and characterization of novel benzil (diphenylethane-1,2-dione) analogues as inhibitors of mammalian carboxylesterases. J Med Chem. 2005 Apr 21;48(8):2906-15. [15828829 ]
General Function:
Zinc ion binding
Specific Function:
DNA deaminase (cytidine deaminase) which acts as an inhibitor of retrovirus replication and retrotransposon mobility via deaminase-dependent and -independent mechanisms. Exhibits potent antiviral activity against vif-deficient HIV-1. After the penetration of retroviral nucleocapsids into target cells of infection and the initiation of reverse transcription, it can induce the conversion of cytosine to uracil in the minus-sense single-strand viral DNA, leading to G-to-A hypermutations in the subsequent plus-strand viral DNA. The resultant detrimental levels of mutations in the proviral genome, along with a deamination-independent mechanism that works prior to the proviral integration, together exert efficient antiretroviral effects in infected target cells. Selectively targets single-stranded DNA and does not deaminate double-stranded DNA or single-or double-stranded RNA. Exhibits antiviral activity also against simian immunodeficiency viruses (SIVs), hepatitis B virus (HBV), equine infectious anemia virus (EIAV), xenotropic MuLV-related virus (XMRV) and simian foamy virus (SFV). May inhibit the mobility of LTR and non-LTR retrotransposons.
Gene Name:
APOBEC3G
Uniprot ID:
Q9HC16
Molecular Weight:
46407.605 Da
References
  1. Liu T, Lin Y, Wen X, Jorissen RN, Gilson MK: BindingDB: a web-accessible database of experimentally determined protein-ligand binding affinities. Nucleic Acids Res. 2007 Jan;35(Database issue):D198-201. Epub 2006 Dec 1. [17145705 ]
General Function:
Ubiquitin binding
Specific Function:
Control of topological states of DNA by transient breakage and subsequent rejoining of DNA strands. Topoisomerase II makes double-strand breaks. Essential during mitosis and meiosis for proper segregation of daughter chromosomes. May play a role in regulating the period length of ARNTL/BMAL1 transcriptional oscillation (By similarity).
Gene Name:
TOP2A
Uniprot ID:
P11388
Molecular Weight:
174383.88 Da
References
  1. Gurbani D, Kukshal V, Laubenthal J, Kumar A, Pandey A, Tripathi S, Arora A, Jain SK, Ramachandran R, Anderson D, Dhawan A: Mechanism of inhibition of the ATPase domain of human topoisomerase IIalpha by 1,4-benzoquinone, 1,2-naphthoquinone, 1,4-naphthoquinone, and 9,10-phenanthroquinone. Toxicol Sci. 2012 Apr;126(2):372-90. doi: 10.1093/toxsci/kfr345. Epub 2012 Jan 4. [22218491 ]
General Function:
Triglyceride lipase activity
Specific Function:
Involved in the detoxification of xenobiotics and in the activation of ester and amide prodrugs. Hydrolyzes aromatic and aliphatic esters, but has no catalytic activity toward amides or a fatty acyl-CoA ester. Hydrolyzes the methyl ester group of cocaine to form benzoylecgonine. Catalyzes the transesterification of cocaine to form cocaethylene. Displays fatty acid ethyl ester synthase activity, catalyzing the ethyl esterification of oleic acid to ethyloleate.
Gene Name:
CES1
Uniprot ID:
P23141
Molecular Weight:
62520.62 Da
References
  1. Wadkins RM, Hyatt JL, Wei X, Yoon KJ, Wierdl M, Edwards CC, Morton CL, Obenauer JC, Damodaran K, Beroza P, Danks MK, Potter PM: Identification and characterization of novel benzil (diphenylethane-1,2-dione) analogues as inhibitors of mammalian carboxylesterases. J Med Chem. 2005 Apr 21;48(8):2906-15. [15828829 ]
General Function:
Protein tyrosine phosphatase activity
Specific Function:
Tyrosine protein phosphatase which functions as a dosage-dependent inducer of mitotic progression. Required for G2/M phases of the cell cycle progression and abscission during cytokinesis in a ECT2-dependent manner. Directly dephosphorylates CDK1 and stimulates its kinase activity. The three isoforms seem to have a different level of activity.
Gene Name:
CDC25B
Uniprot ID:
P30305
Molecular Weight:
64986.745 Da
References
  1. Cao S, Murphy BT, Foster C, Lazo JS, Kingston DG: Bioactivities of simplified adociaquinone B and naphthoquinone derivatives against Cdc25B, MKP-1, and MKP-3 phosphatases. Bioorg Med Chem. 2009 Mar 15;17(6):2276-81. doi: 10.1016/j.bmc.2008.10.090. Epub 2008 Nov 8. [19028102 ]
General Function:
Vascular endothelial growth factor-activated receptor activity
Specific Function:
Tyrosine-protein kinase that acts as a cell-surface receptor for VEGFA, VEGFC and VEGFD. Plays an essential role in the regulation of angiogenesis, vascular development, vascular permeability, and embryonic hematopoiesis. Promotes proliferation, survival, migration and differentiation of endothelial cells. Promotes reorganization of the actin cytoskeleton. Isoforms lacking a transmembrane domain, such as isoform 2 and isoform 3, may function as decoy receptors for VEGFA, VEGFC and/or VEGFD. Isoform 2 plays an important role as negative regulator of VEGFA- and VEGFC-mediated lymphangiogenesis by limiting the amount of free VEGFA and/or VEGFC and preventing their binding to FLT4. Modulates FLT1 and FLT4 signaling by forming heterodimers. Binding of vascular growth factors to isoform 1 leads to the activation of several signaling cascades. Activation of PLCG1 leads to the production of the cellular signaling molecules diacylglycerol and inositol 1,4,5-trisphosphate and the activation of protein kinase C. Mediates activation of MAPK1/ERK2, MAPK3/ERK1 and the MAP kinase signaling pathway, as well as of the AKT1 signaling pathway. Mediates phosphorylation of PIK3R1, the regulatory subunit of phosphatidylinositol 3-kinase, reorganization of the actin cytoskeleton and activation of PTK2/FAK1. Required for VEGFA-mediated induction of NOS2 and NOS3, leading to the production of the signaling molecule nitric oxide (NO) by endothelial cells. Phosphorylates PLCG1. Promotes phosphorylation of FYN, NCK1, NOS3, PIK3R1, PTK2/FAK1 and SRC.
Gene Name:
KDR
Uniprot ID:
P35968
Molecular Weight:
151525.555 Da
References
  1. Wissner A, Floyd MB, Johnson BD, Fraser H, Ingalls C, Nittoli T, Dushin RG, Discafani C, Nilakantan R, Marini J, Ravi M, Cheung K, Tan X, Musto S, Annable T, Siegel MM, Loganzo F: 2-(Quinazolin-4-ylamino)-[1,4]benzoquinones as covalent-binding, irreversible inhibitors of the kinase domain of vascular endothelial growth factor receptor-2. J Med Chem. 2005 Dec 1;48(24):7560-81. [16302797 ]
Specific Function:
Keratin-binding protein required for epithelial cell polarization. Involved in apical junction complex (AJC) assembly via its interaction with PARD3. Required for ciliogenesis.
Gene Name:
FBF1
Uniprot ID:
Q8TES7
Molecular Weight:
125445.19 Da
References
  1. Lin YS, Vermeulen R, Tsai CH, Waidyanatha S, Lan Q, Rothman N, Smith MT, Zhang L, Shen M, Li G, Yin S, Kim S, Rappaport SM: Albumin adducts of electrophilic benzene metabolites in benzene-exposed and control workers. Environ Health Perspect. 2007 Jan;115(1):28-34. [17366815 ]

From T3DB