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Record Information
Version2.0
Creation Date2012-08-09 09:25:16 -0600
Update Date2015-06-03 17:21:42 -0600
Secondary Accession Numbers
  • ECMDB21521
Identification
Name:Demethylmenaquinone-7
DescriptionDemethylmenaquinone-7 is a member of the chemical class known as Sesquaterpenes. Menaquinones and demethaquinones are isoprenoid quinones of the naphthalene series, and are constituents of bacterial plasma membranes, where they play important roles in electron transfer and oxidative phosphorylation. Menaquinones and demethaquinones are named MK-n or DMK-n, respectively, where the n refers to the number of prenyl units present in the side chain Demethylmenaquinone-7 is involved in cofactor (menaquinone and ubiquinone) biosynthesis. Demethylquinones are converted to menaquinones via the enzyme ubiE.
Structure
Thumb
Synonyms:
  • DMK-7
Chemical Formula:C45H62O2
Weight:Average: 634.9726
Monoisotopic: 634.474981228
InChI Key:GJIGVPBRJFOUGD-SSQLMYNASA-N
InChI:InChI=1S/C45H62O2/c1-34(2)17-11-18-35(3)19-12-20-36(4)21-13-22-37(5)23-14-24-38(6)25-15-26-39(7)27-16-28-40(8)31-32-41-33-44(46)42-29-9-10-30-43(42)45(41)47/h9-10,17,19,21,23,25,27,29-31,33H,11-16,18,20,22,24,26,28,32H2,1-8H3/b35-19+,36-21+,37-23+,38-25+,39-27+,40-31+
CAS number:Not Available
IUPAC Name:2-[(2E,6E,10E,14E,18E,22E)-3,7,11,15,19,23,27-heptamethyloctacosa-2,6,10,14,18,22,26-heptaen-1-yl]-1,4-dihydronaphthalene-1,4-dione
Traditional IUPAC Name:2-[(2E,6E,10E,14E,18E,22E)-3,7,11,15,19,23,27-heptamethyloctacosa-2,6,10,14,18,22,26-heptaen-1-yl]naphthalene-1,4-dione
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])CC1=CC(=O)C2=CC=CC=C2C1=O)=C(\C)CCC=C(C)C
Chemical Taxonomy
Description belongs to the class of organic compounds known as sesquaterpenoids. These are terpenoids with at least 7 consecutive isoprene units.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassPrenol lipids
Sub ClassSesquaterpenoids
Direct ParentSesquaterpenoids
Alternative Parents
Substituents
  • Sesquaterpenoid
  • Menaquinone
  • Naphthoquinone
  • Naphthalene
  • Aryl ketone
  • Quinone
  • Benzenoid
  • Ketone
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Aromatic homopolycyclic compound
Molecular FrameworkAromatic homopolycyclic compounds
External DescriptorsNot Available
Physical Properties
State:Not Available
Charge:0
Melting point:Not Available
Experimental Properties:
PropertyValueSource
Predicted Properties
PropertyValueSource
Water Solubility0.00022 g/LALOGPS
logP9.62ALOGPS
logP13.06ChemAxon
logS-6.5ALOGPS
pKa (Strongest Acidic)12.48ChemAxon
pKa (Strongest Basic)-7.2ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area34.14 ŲChemAxon
Rotatable Bond Count20ChemAxon
Refractivity212.56 m³·mol⁻¹ChemAxon
Polarizability80.82 ųChemAxon
Number of Rings2ChemAxon
Bioavailability0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Biological Properties
Cellular Locations:Membrane
Reactions:
SMPDB Pathways:Not Available
KEGG Pathways:Not Available
EcoCyc Pathways:Not Available
Concentrations
Not Available
Spectra
Spectra:
Spectrum TypeDescriptionSplash Key
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-0213229000-60f375f983275bd9fe27View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-08i3-0546921000-8c1af4a91645a72c001fView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-000i-1224920000-291e3792b46321d52bf7View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-001i-0000009000-a798b2957ee1bf46158aView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-001i-0100019000-39e4dc8ca78b8b9490f0View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-066r-1812239000-69cf6433e565e00da66aView in MoNA
MSMass Spectrum (Electron Ionization)Not AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
References
References:
  • 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 IDNot Available
HMDB IDNot Available
Pubchem Compound ID25244494
Kegg IDNot Available
ChemSpider IDNot Available
Wikipedia IDNot Available
BioCyc IDNot Available

Enzymes

General function:
Involved in methyltransferase activity
Specific function:
Methyltransferase required for the conversion of dimethylmenaquinone (DMKH2) to menaquinone (MKH2) and the conversion of 2-polyprenyl-6-methoxy-1,4-benzoquinol (DDMQH2) to 2-polyprenyl-3-methyl-6-methoxy-1,4-benzoquinol (DMQH2)
Gene Name:
ubiE
Uniprot ID:
P0A887
Molecular weight:
28073
Reactions
A demethylmenaquinone + S-adenosyl-L-methionine = a menaquinol + S-adenosyl-L-homocysteine.
S-adenosyl-L-methionine + 2-methoxy-6-all-trans-polyprenyl-1,4-benzoquinol = S-adenosyl-L-homocysteine + 6-methoxy-3-methyl-2-all-trans-polyprenyl-1,4-benzoquinol.