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Record Information
Version2.0
Created at2024-09-10 22:49:46 UTC
Updated at2024-09-10 22:49:47 UTC
NP-MRD IDNP0334862
Secondary Accession NumbersNone
Natural Product Identification
Common NameUbiquinone 6
DescriptionUbiquinone 6, also known as coenzyme Q6 or coq-6, belongs to the class of organic compounds known as ubiquinones. These are coenzyme Q derivatives containing a 5, 6-dimethoxy-3-methyl(1,4-benzoquinone) moiety to which an isoprenyl group is attached at ring position 2(or 6). Ubiquionone 10 (CoQ10) is involved in cellular respiration. Ubiquinone 6 is an extremely weak basic (essentially neutral) compound (based on its pKa). It is an endogenouse compound but it has also been isolated from foods containing baker's yeast. Ubiquione-6 has just 6 isoprene units. In humans, ubiquinone 6 is involved in ubiquinone biosynthesis. Ubiquinone 6 is a member of the chemical class known as Polyprenylbenzoquinones. It is fat-soluble and is therefore mobile in cellular membranes; it plays a unique role in the electron transport chain (ETC). These are compounds containing a polyisoprene chain attached to a quinone at the second ring position. In the inner bacterial membrane, electrons from NADH and succinate pass through the ETC to the oxygen, which is then reduced to water. The transfer of electrons through ETC results in the pumping of H+ across the membrane creating a proton gradient across the membrane, which is used by ATP synthase (located on the membrane) to generate ATP. Ubiquinone 6 is an intermediate in the synthesis of Ubiquionone 10. It was first documented in 2000 (PMID: 11413487). Normally in humans it has 10 (PMID: 16902246) (PMID: 17374880) (PMID: 20044567).
Structure
Thumb
Synonyms
ValueSource
Coenzyme Q6HMDB
Coenzyme QQ6HMDB
Coenzyme-Q6HMDB
CoQ-6HMDB
CoQ6HMDB
Ubiquinone 30HMDB
Ubiquinone Q6HMDB
Ubiquinone(6)HMDB
UBIQUINONE-6HMDB
Chemical FormulaC39H58O4
Average Mass590.8754 Da
Monoisotopic Mass590.43351 Da
IUPAC Name2-(3,7,11,15,19,23-hexamethyltetracosa-2,6,10,14,18,22-hexaen-1-yl)-5,6-dimethoxy-3-methylcyclohexa-2,5-diene-1,4-dione
Traditional Name2-(3,7,11,15,19,23-hexamethyltetracosa-2,6,10,14,18,22-hexaen-1-yl)-5,6-dimethoxy-3-methylcyclohexa-2,5-diene-1,4-dione
CAS Registry NumberNot Available
SMILES
COC1=C(OC)C(=O)C(CC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)C)=C(C)C1=O
InChI Identifier
InChI=1S/C39H58O4/c1-28(2)16-11-17-29(3)18-12-19-30(4)20-13-21-31(5)22-14-23-32(6)24-15-25-33(7)26-27-35-34(8)36(40)38(42-9)39(43-10)37(35)41/h16,18,20,22,24,26H,11-15,17,19,21,23,25,27H2,1-10H3
InChI KeyGXNFPEOUKFOTKY-UHFFFAOYSA-N
Experimental Spectra
Not Available
Predicted Spectra
Not Available
Chemical Shift Submissions
Not Available
Species
Species of OriginNot Available
Chemical Taxonomy
Description Belongs to the class of organic compounds known as ubiquinones. These are coenzyme Q derivatives containing a 5, 6-dimethoxy-3-methyl(1,4-benzoquinone) moiety to which an isoprenyl group is attached at ring position 2(or 6).
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassPrenol lipids
Sub ClassQuinone and hydroquinone lipids
Direct ParentUbiquinones
Alternative Parents
Substituents
  • Polyprenylbenzoquinone
  • Sesterterpenoid
  • Ubiquinone skeleton
  • Quinone
  • P-benzoquinone
  • Vinylogous ester
  • Cyclic ketone
  • Ketone
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Aliphatic homomonocyclic compound
Molecular FrameworkAliphatic homomonocyclic compounds
External Descriptors
Physical Properties
StateNot Available
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP8.41ALOGPS
logP10.52ChemAxon
logS-6.3ALOGPS
pKa (Strongest Basic)-4.7ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area52.6 ŲChemAxon
Rotatable Bond Count19ChemAxon
Refractivity191.39 m³·mol⁻¹ChemAxon
Polarizability73.45 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
HMDB IDHMDB0036062
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB014886
KNApSAcK IDNot Available
Chemspider ID4446657
KEGG Compound IDC17568
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound5283544
PDB IDNot Available
ChEBI ID52971
Good Scents IDNot Available
References
General References
  1. Simons K, Toomre D: Lipid rafts and signal transduction. Nat Rev Mol Cell Biol. 2000 Oct;1(1):31-9. [PubMed:11413487 ]
  2. Watson AD: Thematic review series: systems biology approaches to metabolic and cardiovascular disorders. Lipidomics: a global approach to lipid analysis in biological systems. J Lipid Res. 2006 Oct;47(10):2101-11. Epub 2006 Aug 10. [PubMed:16902246 ]
  3. Sethi JK, Vidal-Puig AJ: Thematic review series: adipocyte biology. Adipose tissue function and plasticity orchestrate nutritional adaptation. J Lipid Res. 2007 Jun;48(6):1253-62. Epub 2007 Mar 20. [PubMed:17374880 ]
  4. Lingwood D, Simons K: Lipid rafts as a membrane-organizing principle. Science. 2010 Jan 1;327(5961):46-50. doi: 10.1126/science.1174621. [PubMed:20044567 ]