Record Information
Version1.0
StatusDetected and Quantified
Creation Date2021-11-18 01:41:43 UTC
Update Date2022-08-31 18:22:35 UTC
Metabolite IDMMDBc0031621
Metabolite Identification
Common NameMenaquinol 8
DescriptionMenaquinol 8 is a polyprenylhydroquinone having a an octaprenyl moiety at position 2 and a methyl group at position 3. It is a substrate for Dimethyl sulfoxide reductase (dmsA). This enzyme catalyzes the reduction of dimethyl sulfoxide (DMSO) to dimethyl sulfide (DMS) using the following reaction: Dimethylsulfide + menaquinone + H2O = dimethylsulfoxide + menaquinol. DMSO reductase serves as the terminal reductase under anaerobic conditions, with DMSO being the terminal electron acceptor. Terminal reductase during anaerobic growth on various sulfoxides and N-oxide compounds. This enzyme allows E.coli to grow anaerobically on DMSO as respiratory oxidant. Menaquinol 8 is generated by Ubiquinone/menaquinone biosynthesis methyltransferase (ubiE). This enzyme is required for the conversion of demethylmenaquinone (DMKH2) to menaquinone (MKH2) and has the following catalytic activity: A demethylmenaquinone + S-adenosyl-L-methionine = a menaquinol + S-adenosyl-L-homocysteine.
Structure
Synonyms
ValueSource
MKH2-8ChEBI
Reduced menaquinone-8ChEBI
Molecular FormulaC51H74O2
Average Mass719.1321
Monoisotopic Mass718.568881612
IUPAC Name2-methyl-3-[(2E,6E,10E,14E,18E,22E,26E)-3,7,11,15,19,23,27,31-octamethyldotriaconta-2,6,10,14,18,22,26,30-octaen-1-yl]naphthalene-1,4-diol
Traditional Namemenaquinol-8
CAS Registry NumberNot Available
SMILES
[H]\C(CC\C(C)=C(/[H])CC\C(C)=C(/[H])CC\C(C)=C(/[H])CC\C(C)=C(/[H])CC\C(C)=C(/[H])CC\C(C)=C(/[H])CC1=C(O)C2=CC=CC=C2C(O)=C1C)=C(\C)CCC=C(C)C
InChI Identifier
InChI=1S/C51H74O2/c1-38(2)20-13-21-39(3)22-14-23-40(4)24-15-25-41(5)26-16-27-42(6)28-17-29-43(7)30-18-31-44(8)32-19-33-45(9)36-37-47-46(10)50(52)48-34-11-12-35-49(48)51(47)53/h11-12,20,22,24,26,28,30,32,34-36,52-53H,13-19,21,23,25,27,29,31,33,37H2,1-10H3/b39-22+,40-24+,41-26+,42-28+,43-30+,44-32+,45-36+
InChI KeyOIEZRVBFVPGODT-WQWYCSGDSA-N