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Identification
YMDB IDYMDB00605
Nameergosta-5,7,24(28)-trien-3beta-ol
SpeciesSaccharomyces cerevisiae
StrainBaker's yeast
Description5-Dehydroepisterol belongs to the class of organic compounds known as ergosterols and derivatives. These are steroids containing ergosta-5,7,22-trien-3beta-ol or a derivative thereof, which is based on the 3beta-hydroxylated ergostane skeleton. Thus, 5-dehydroepisterol is considered to be a sterol lipid molecule. 5-Dehydroepisterol is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral.
Structure
Thumb
Synonyms
  • Campesta-7,24(28)-dien-3beta-ol
  • Ergosta-5,7,24(28)-trien-3beta-ol
  • (3beta)-Ergosta-5,7,24(28)-trien-3-ol
  • (3β)-Ergosta-5,7,24(28)-trien-3-ol
  • 5-Dehydroepisterol
  • Campesta-7,24(28)-dien-3β-ol
  • Ergosta-5,7,24(28)-trien-3β-ol
CAS numberNot Available
WeightAverage: 396.6484
Monoisotopic: 396.33921603
InChI KeyZEPNVCGPJXYABB-LOIOQLKMSA-N
InChIInChI=1S/C28H44O/c1-18(2)19(3)7-8-20(4)24-11-12-25-23-10-9-21-17-22(29)13-15-27(21,5)26(23)14-16-28(24,25)6/h9-10,18,20,22,24-26,29H,3,7-8,11-17H2,1-2,4-6H3/t20-,22+,24-,25+,26+,27+,28-/m1/s1
IUPAC Name(1S,2R,5S,11R,14R,15R)-2,15-dimethyl-14-[(2R)-6-methyl-5-methylideneheptan-2-yl]tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-7,9-dien-5-ol
Traditional IUPAC Name(1S,2R,5S,11R,14R,15R)-2,15-dimethyl-14-[(2R)-6-methyl-5-methylideneheptan-2-yl]tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-7,9-dien-5-ol
Chemical FormulaC28H44O
SMILES[H][C@@]1(CC[C@@]2([H])C3=CC=C4C[C@@H](O)CC[C@]4(C)[C@@]3([H])CC[C@]12C)[C@H](C)CCC(=C)C(C)C
Chemical Taxonomy
Description belongs to the class of organic compounds known as ergosterols and derivatives. These are steroids containing ergosta-5,7,22-trien-3beta-ol or a derivative thereof, which is based on the 3beta-hydroxylated ergostane skeleton.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
Sub ClassErgostane steroids
Direct ParentErgosterols and derivatives
Alternative Parents
Substituents
  • Ergosterol-skeleton
  • 3-hydroxy-delta-5-steroid
  • 3-hydroxy-delta-7-steroid
  • 3-hydroxysteroid
  • Hydroxysteroid
  • 3-beta-hydroxy-delta-5-steroid
  • 3-beta-hydroxysteroid
  • Delta-7-steroid
  • Delta-5-steroid
  • Cyclic alcohol
  • Secondary alcohol
  • Organic oxygen compound
  • Alcohol
  • Organooxygen compound
  • Hydrocarbon derivative
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic compounds
External Descriptors
Physical Properties
StateSolid
Charge0
Melting pointNot Available
Experimental Properties
PropertyValueReference
Water SolubilityNot AvailablePhysProp
LogPNot AvailablePhysProp
Predicted Properties
PropertyValueSource
Water Solubility0.0006 g/LALOGPS
logP7.64ALOGPS
logP6.65ChemAxon
logS-5.8ALOGPS
pKa (Strongest Acidic)18.27ChemAxon
pKa (Strongest Basic)-1.4ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area20.23 ŲChemAxon
Rotatable Bond Count5ChemAxon
Refractivity125.79 m³·mol⁻¹ChemAxon
Polarizability50.7 ųChemAxon
Number of Rings4ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Biological Properties
Cellular Locations
  • cytoplasm
Organoleptic PropertiesNot Available
SMPDB PathwaysNot Available
KEGG PathwaysNot Available
SMPDB ReactionsNot Available
KEGG Reactions
NADH + ergosta-5,7,24(28)-trien-3beta-ol + hydron + oxygenwater + NAD + ergosta-5,7,22,24(28)-tetraen-3beta-ol
ergosta-5,7,24(28)-trien-3beta-ol + NADPH + hydron + oxygenwater + NADP + ergosta-5,7,22,24(28)-tetraen-3beta-ol
episterol + NADPH + hydron + oxygenwater + NADP + ergosta-5,7,24(28)-trien-3beta-ol
Concentrations
Intracellular ConcentrationsNot Available
Extracellular ConcentrationsNot Available
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-00lr-0019000000-ee2081ecc662ce2451e5JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (1 TMS) - 70eV, Positivesplash10-0udi-2005900000-497de544ef5aa67f52beJSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-004j-0019000000-ec4a863acd6783c7db80JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0032-6159000000-2fa2d066e8ea1504f297JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-001i-8094000000-e86c8d11fb643c8a6bd4JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0002-0009000000-03506c1fb18d95fe82baJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0002-0009000000-d3d2383799c5587a29c9JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-004i-2019000000-180b0828fbb1ad3d49d9JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0002-0009000000-2f6aa9af0bd8878fb6c6JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0002-0009000000-5bdbce66488e82a677b2JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0006-0009000000-a50b8185645974406a41JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0002-0049000000-fe4bef6ae5a97acb7846JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0pb9-8189000000-ffe3b459b5df4d02feabJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-067m-9420000000-439a46a2d0cd4b52d89bJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
References
References:
  • Herrgard, M. J., Swainston, N., Dobson, P., Dunn, W. B., Arga, K. Y., Arvas, M., Bluthgen, N., Borger, S., Costenoble, R., Heinemann, M., Hucka, M., Le Novere, N., Li, P., Liebermeister, W., Mo, M. L., Oliveira, A. P., Petranovic, D., Pettifer, S., Simeonidis, E., Smallbone, K., Spasic, I., Weichart, D., Brent, R., Broomhead, D. S., Westerhoff, H. V., Kirdar, B., Penttila, M., Klipp, E., Palsson, B. O., Sauer, U., Oliver, S. G., Mendes, P., Nielsen, J., Kell, D. B. (2008). "A consensus yeast metabolic network reconstruction obtained from a community approach to systems biology." Nat Biotechnol 26:1155-1160.18846089
  • Lamb, D. C., Kelly, D. E., Manning, N. J., Kaderbhai, M. A., Kelly, S. L. (1999). "Biodiversity of the P450 catalytic cycle: yeast cytochrome b5/NADH cytochrome b5 reductase complex efficiently drives the entire sterol 14-demethylation (CYP51) reaction." FEBS Lett 462:283-288.10622712
Synthesis Reference:Not Available
External Links:
ResourceLink
CHEBI ID52972
HMDB IDHMDB0006848
Pubchem Compound ID10894570
Kegg IDC15780
ChemSpider ID22889732
FOODB IDFDB024117
Wikipedia5-Dehydroepisterol
BioCyc IDNot Available

Enzymes

General function:
Involved in oxidoreductase activity
Specific function:
The outer membrane form may mediate the reduction of outer membrane cytochrome b5, and the soluble inter-membrane space form may transfer electrons from external NADH to cytochrome c, thereby mediating an antimycin-insensitive, energy-coupled oxidation of external NADH by yeast mitochondria. Involved in the reduction of D-erythroascorbyl free radicals
Gene Name:
MCR1
Uniprot ID:
P36060
Molecular weight:
34137.69922
Reactions
NADH + 2 ferricytochrome b5 → NAD(+) + H(+) + 2 ferrocytochrome b5.
General function:
Involved in oxidoreductase activity
Specific function:
This enzyme is required for electron transfer from NADP to cytochrome P450 in microsomes. It can also provide electron transfer to heme oxygenase and cytochrome B5
Gene Name:
NCP1
Uniprot ID:
P16603
Molecular weight:
76771.10156
Reactions
NADPH + n oxidized hemoprotein → NADP(+) + n reduced hemoprotein.
General function:
Involved in iron ion binding
Specific function:
Catalyzes the introduction of a C-5 double bond in the B ring of ergosterol. May contribute to the regulation of ergosterol biosynthesis
Gene Name:
ERG3
Uniprot ID:
P32353
Molecular weight:
42729.89844
Reactions
General function:
Involved in oxidoreductase activity
Specific function:
Electron donor reductase for cytochrome b5. The cytochrome b5/NADH cytochrome b5 reductase electron transfer system supports the catalytic activity of several sterol biosynthetic enzymes. Plays a role in bud morphology
Gene Name:
CBR1
Uniprot ID:
P38626
Molecular weight:
31493.59961
Reactions
NADH + 2 ferricytochrome b5 → NAD(+) + H(+) + 2 ferrocytochrome b5.