Record Information
Version1.0
StatusDetected and Quantified
Creation Date2021-11-18 00:06:33 UTC
Update Date2024-04-30 19:46:30 UTC
Metabolite IDMMDBc0030392
Metabolite Identification
Common NameUbiquinone-9
DescriptionUbiquinone-9 is a member of the chemical class known as Polyprenylbenzoquinones. These are compounds containing a polyisoprene chain attached to a quinone at the second ring position. Ubiquione-9 has 9 isoprene units. Normally in E. coli the active form of Ubiquinone has 8 isoprene units (Ubiquinone-8) and in humans it normally has 10. Ubiquinone-9 is an extended version of Ubiquinone 8 that arises from conjugation by an extended prenyl tail via 4-hydroxybenzoate polyprenyltransferase. Ubiquionone is involved in cellular respiration. It is fat-soluble and is therefore mobile in cellular membranes; it plays a unique role in the electron transport chain (ETC). 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.
Structure
Synonyms
ValueSource
(all-e)-2,3-Dimethoxy-5-methyl-6-(3,7,11,15,19,23,27,31,35-nonamethyl-2,6,10,14,18,22,26,30,34-hexatriacontanonaenyl)-2,5-cyclohexadiene-1,4-dioneChEBI
2,3-Dimethoxy-5-methyl-6-[(2E,6E,10E,14E,18E,22E,26E,30E)-3,7,11,15,19,23,27,31,35-nonamethylhexatriaconta-2,6,10,14,18,22,26,30,34-nonaen-1-yl]-1,4-benzoquinoneChEBI
CoQ9ChEBI
Ubiquinone-45ChEBI
Coenzyme Q(9)Kegg
2-Methyl-3-nonaprenyl-5,6-dimethoxy-1,4-benzoquinoneHMDB
Coenzyme Q(sub 9)HMDB
CoQ(sub 9)HMDB
Ubiquinone 45HMDB
Ubiquinone 9HMDB
Ubiquinone Q(sub 9)HMDB
Ubiquinone Q9HMDB
Ubiquinone-9HMDB
Ubiquinone 9, (Z,Z,Z,Z,Z,e,e,e)-isomerHMDB
Ubiquinone Q-9HMDB
Coenzyme Q9ChEBI
Molecular FormulaC54H82O4
Average Mass795.2265
Monoisotopic Mass794.621311112
IUPAC Name2,3-dimethoxy-5-methyl-6-[(2E,6E,10E,14E,18E,22E,26E,30E)-3,7,11,15,19,23,27,31,35-nonamethylhexatriaconta-2,6,10,14,18,22,26,30,34-nonaen-1-yl]cyclohexa-2,5-diene-1,4-dione
Traditional Nameubiquinone 9
CAS Registry Number303-97-9
SMILES
COC1=C(OC)C(=O)C(C\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CCC=C(C)C)=C(C)C1=O
InChI Identifier
InChI=1S/C54H82O4/c1-40(2)22-14-23-41(3)24-15-25-42(4)26-16-27-43(5)28-17-29-44(6)30-18-31-45(7)32-19-33-46(8)34-20-35-47(9)36-21-37-48(10)38-39-50-49(11)51(55)53(57-12)54(58-13)52(50)56/h22,24,26,28,30,32,34,36,38H,14-21,23,25,27,29,31,33,35,37,39H2,1-13H3/b41-24+,42-26+,43-28+,44-30+,45-32+,46-34+,47-36+,48-38+
InChI KeyUUGXJSBPSRROMU-WJNLUYJISA-N