Record Information
Version 1.0
Update Date 1/22/2018 11:54:54 AM
Metabolite IDPAMDB001856
Identification
Name: Pyrroloquinoline quinone
Description:Enzymes containing PQQ are called quinoproteins. PQQ and quinoproteins play a role in the redox metabolism and structural integrity of cells and tissues [PMID:2558842]. It was reported that aminoadipate semialdehyde dehydrogenase (AASDH) might also use PQQ as a cofactor, suggesting a possibility that PQQ is a vitamin in mammals. [PMID:12712191]
Structure
Thumb
Synonyms:
  • 2,7,9-Tricarboxy-1H-pyrrolo[2,3-f]quinoline-4,5-dione
  • Methoxatin
  • PQQ
  • Pyrrolo-quinoline quinone
  • Pyrroloquinoline-quinone
Chemical Formula: C14H6N2O8
Average Molecular Weight: 330.206
Monoisotopic Molecular Weight: 330.012415178
InChI Key: MMXZSJMASHPLLR-UHFFFAOYSA-N
InChI:InChI=1S/C14H6N2O8/c17-10-4-2-6(14(23)24)15-8(4)7-3(12(19)20)1-5(13(21)22)16-9(7)11(10)18/h1-2,15H,(H,19,20)(H,21,22)(H,23,24)
CAS number: 72909-34-3
IUPAC Name:4,5-dioxo-1H,4H,5H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic acid
Traditional IUPAC Name: pyrroloquinoline quinone
SMILES:OC(=O)C1=CC2=C(N1)C1=C(N=C(C=C1C(O)=O)C(O)=O)C(=O)C2=O
Chemical Taxonomy
Taxonomy DescriptionThis compound belongs to the class of organic compounds known as pyrroloquinoline quinones. These are compounds with a structure based on the 2,7,-tricarboxy-1H-pyrrolo[2,3-f ]quinoline-4,5-dione. Pyrroloquinoline Quinones usually bear a carboxylic acid group at the C-2, C-7 and C-9 positions.
Kingdom Organic compounds
Super ClassOrganoheterocyclic compounds
Class Quinolines and derivatives
Sub ClassPyrroloquinolines
Direct Parent Pyrroloquinoline quinones
Alternative Parents
Substituents
  • Pyrroloquinoline quinone
  • Quinoline-4-carboxylic acid
  • Quinoline-2-carboxylic acid
  • Tricarboxylic acid or derivatives
  • Pyridine carboxylic acid or derivatives
  • Pyridine carboxylic acid
  • Indole or derivatives
  • Aryl ketone
  • Quinone
  • Pyrrole-2-carboxylic acid or derivatives
  • Pyrrole-2-carboxylic acid
  • O-quinone
  • Substituted pyrrole
  • Pyridine
  • Heteroaromatic compound
  • Vinylogous amide
  • Pyrrole
  • Ketone
  • Azacycle
  • Carboxylic acid
  • Carboxylic acid derivative
  • Hydrocarbon derivative
  • Organooxygen compound
  • Organonitrogen compound
  • Carbonyl group
  • Aromatic heteropolycyclic compound
Molecular Framework Aromatic heteropolycyclic compounds
External Descriptors
Physical Properties
State: Solid
Charge:-3
Melting point: Not Available
Experimental Properties:
PropertyValueSource
Predicted Properties
PropertyValueSource
Water Solubility0.0966 mg/mLALOGPS
logP0.46ALOGPS
logP0.37ChemAxon
logS-3.5ALOGPS
pKa (Strongest Acidic)3.05ChemAxon
pKa (Strongest Basic)-3.3ChemAxon
Physiological Charge-3ChemAxon
Hydrogen Acceptor Count9ChemAxon
Hydrogen Donor Count4ChemAxon
Polar Surface Area174.72 Å2ChemAxon
Rotatable Bond Count3ChemAxon
Refractivity74.53 m3·mol-1ChemAxon
Polarizability28.91 Å3ChemAxon
Number of Rings3ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Biological Properties
Cellular Locations: Cytoplasm
Reactions:
Pathways: Not Available
Spectra
Spectra:
Spectrum TypeDescriptionSplash Key
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-03dr-0059000000-fe32e3dcdbb122899a9bView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-01p9-0093000000-0057ba82bb1928e2b729View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00kf-0090000000-7a80db950a195ffc246aView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-01ti-0089000000-3940ecb0162179ef62fcView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-00kr-0092000000-47c12a164c99ff5da573View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-00ku-0090000000-968a80882216e4efda23View in MoNA
References
References:
  • Kasahara, T., Kato, T. (2003). "Nutritional biochemistry: A new redox-cofactor vitamin for mammals." Nature 422:832. Pubmed: 12712191
  • Paz, M. A., Fluckiger, R., Torrelio, B. M., Gallop, P. M. (1989). "Methoxatin (PQQ), coenzyme for copper-dependent amine and mixed-function oxidation in mammalian tissues." Connect Tissue Res 20:251-257. Pubmed: 2558842
  • van der Werf, M. J., Overkamp, K. M., Muilwijk, B., Coulier, L., Hankemeier, T. (2007). "Microbial metabolomics: toward a platform with full metabolome coverage." Anal Biochem 370:17-25. Pubmed: 17765195
  • Winder, C. L., Dunn, W. B., Schuler, S., Broadhurst, D., Jarvis, R., Stephens, G. M., Goodacre, R. (2008). "Global metabolic profiling of Escherichia coli cultures: an evaluation of methods for quenching and extraction of intracellular metabolites." Anal Chem 80:2939-2948. Pubmed: 18331064
Synthesis Reference: Not Available
Material Safety Data Sheet (MSDS) Not Available
External Links:
ResourceLink
CHEBI ID18315
HMDB IDHMDB13636
Pubchem Compound ID0
Kegg IDC00113
ChemSpider ID997
WikipediaPyrroloquinoline_quinone
BioCyc IDNot Available
Ligand ExpoPQQ