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Identification
YMDB IDYMDB00543
Nameergosterol
SpeciesSaccharomyces cerevisiae
StrainBaker's yeast
DescriptionErgosterol, also known as provitamin D2 or lumisterol, 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, ergosterol is considered to be a sterol lipid molecule. Ergosterol is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral.
Structure
Thumb
Synonyms
  • (22E)-Ergosta-5,7,22-trien-3-ol
  • (24R)-Ergosta-5,7,22-trien-3b-ol
  • (3beta,22E)-Ergosta-5,7,22-trien-3-ol
  • (3beta,2E)-Ergosta-5,7,22-trien-3-ol
  • (3beta)-Ergosta-5,7,22-trien-3-ol
  • 24-Methylcholesta-5,7,22-trien-3b-ol
  • 24-Methylcholesta-5,7,22-trien-3beta-ol
  • 24a-Methyl-22E-dehydrocholesterol
  • 24alpha-Methyl-22E-dehydrocholestero
  • 24R-Methylcholesta-5,7,22E-trien-3b-ol
  • 24R-Methylcholesta-5,7,22E-trien-3beta-ol
  • ergosta-5,7,22-trien-3-ol
  • Ergosterin
  • Ergosterol
  • Provitamine D2
  • (22E,24S)-24-Methylcholesta-5,7,22-trien-3beta-ol
  • Provitamin D2
  • (22E,24S)-24-Methylcholesta-5,7,22-trien-3b-ol
  • (22E,24S)-24-Methylcholesta-5,7,22-trien-3β-ol
  • Lumisterol
  • Provitamin D 2
  • D2, Pro-vitamin
  • Pro vitamin D2
  • Pro-vitamin D2
  • (22E,24R)-Ergosta-5,7,22-trien-3beta-ol
  • (22E,24R)-Ergosta-5,7,22-trien-3β-ol
  • (24R)-Ergosta-5,7,22-trien-3beta-ol
  • (24R)-Ergosta-5,7,22-trien-3β-ol
  • (3Β,22E)-ergosta-5,7,22-trien-3-ol
  • 24-Methylcholesta-5,7,22-trien-3β-ol
  • 24R-Methylcholesta-5,7,22E-trien-3β-ol
  • 24alpha-Methyl-22E-dehydrocholesterol
  • 24Α-methyl-22E-dehydrocholesterol
  • 3beta-Hydroxyergosta-5,7,22-triene
  • 3Β-hydroxyergosta-5,7,22-triene
  • Provitamin D
CAS number57-87-4
WeightAverage: 396.6484
Monoisotopic: 396.33921603
InChI KeyDNVPQKQSNYMLRS-APGDWVJJSA-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/h7-10,18-20,22,24-26,29H,11-17H2,1-6H3/b8-7+/t19-,20+,22-,24+,25-,26-,27-,28+/m0/s1
IUPAC Name(1S,2R,5S,11R,14R,15R)-14-[(2R,3E,5R)-5,6-dimethylhept-3-en-2-yl]-2,15-dimethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-7,9-dien-5-ol
Traditional IUPAC Name(1S,2R,5S,11R,14R,15R)-14-[(2R,3E,5R)-5,6-dimethylhept-3-en-2-yl]-2,15-dimethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-7,9-dien-5-ol
Chemical FormulaC28H44O
SMILESCC(C)[C@@H](C)\C=C\[C@@H](C)[C@@]1([H])CC[C@@]2([H])C3=CC=C4C[C@@H](O)CC[C@]4(C)[C@@]3([H])CC[C@]12C
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 point170 °C
Experimental Properties
PropertyValueReference
Water Solubility16 mg/mL [HMP experimental]PhysProp
LogPNot AvailablePhysProp
Predicted Properties
PropertyValueSource
Water Solubility0.00016 g/LALOGPS
logP7.39ALOGPS
logP6.63ChemAxon
logS-6.4ALOGPS
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 Count4ChemAxon
Refractivity127.13 m³·mol⁻¹ChemAxon
Polarizability51.06 ųChemAxon
Number of Rings4ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Biological Properties
Cellular Locations
  • extracellular
  • cell envelope
  • lipid particle
  • endoplasmic reticulum
  • cytoplasm
Organoleptic PropertiesNot Available
SMPDB Pathways
Cholesterol biosynthesis and metabolism CE(10:0)PW002545 ThumbThumb?image type=greyscaleThumb?image type=simple
Cholesterol biosynthesis and metabolism CE(12:0)PW002548 ThumbThumb?image type=greyscaleThumb?image type=simple
Cholesterol biosynthesis and metabolism CE(14:0)PW002544 ThumbThumb?image type=greyscaleThumb?image type=simple
Cholesterol biosynthesis and metabolism CE(16:0)PW002550 ThumbThumb?image type=greyscaleThumb?image type=simple
Cholesterol biosynthesis and metabolism CE(18:0)PW002551 ThumbThumb?image type=greyscaleThumb?image type=simple
KEGG Pathways
Steroid biosynthesisec00100 Map00100
SMPDB Reactions
ergosta-5,7,22,24(28)-tetraen-3beta-ol + hydron + NADPHergosterol + NADP
KEGG Reactions
ergosterol + oleoyl-CoAergosteryl oleate + Coenzyme A
ergosterolergosteryl palmitoleate + Coenzyme A
NADPH + hydron + ergosta-5,7,22,24(28)-tetraen-3beta-olNADP + ergosterol
ergosterol + fatty acid ↔ ergosterol ester + water
Uridine diphosphate glucose + ergosterolUridine 5'-diphosphate + ergosteryl 3-beta-D-glucoside + hydron
Concentrations
Intracellular ConcentrationsNot Available
Extracellular ConcentrationsNot Available
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
GC-MSGC-MS Spectrum - GC-MS (1 TMS)splash10-0536-2911000000-0f3a53ac2076470e08fdJSpectraViewer | MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-004j-1019000000-9682b479cb367468e4f7JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-01ss-6149000000-8fcdb7198ebd094e3658JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00li-9085000000-b5f06c3d8a32fea4fc08JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0002-0009000000-36b82459f90e5096bbffJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0002-0009000000-17e94d8c42f8b29d1d7aJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-004i-3019000000-d968e794cb4f844efc59JSpectraViewer
MSMass Spectrum (Electron Ionization)splash10-07bg-6943000000-5fbc1f7b29d046df3944JSpectraViewer | MoNA
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
References
References:
  • UniProt Consortium (2011). "Ongoing and future developments at the Universal Protein Resource." Nucleic Acids Res 39:D214-D219.21051339
  • Scheer, M., Grote, A., Chang, A., Schomburg, I., Munaretto, C., Rother, M., Sohngen, C., Stelzer, M., Thiele, J., Schomburg, D. (2011). "BRENDA, the enzyme information system in 2011." Nucleic Acids Res 39:D670-D676.21062828
  • 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
  • Loubbardi, A., Marcireau, C., Karst, F., Guilloton, M. (1995). "Sterol uptake induced by an impairment of pyridoxal phosphate synthesis in Saccharomyces cerevisiae: cloning and sequencing of the PDX3 gene encoding pyridoxine (pyridoxamine) phosphate oxidase." J Bacteriol 177:1817-1823.7896706
  • Wilcox, L. J., Balderes, D. A., Wharton, B., Tinkelenberg, A. H., Rao, G., Sturley, S. L. (2002). "Transcriptional profiling identifies two members of the ATP-binding cassette transporter superfamily required for sterol uptake in yeast." J Biol Chem 277:32466-32472.12077145
  • Schulz, T. A., Prinz, W. A. (2007). "Sterol transport in yeast and the oxysterol binding protein homologue (OSH) family." Biochim Biophys Acta 1771:769-780.17434796
  • Warnecke, D., Erdmann, R., Fahl, A., Hube, B., Muller, F., Zank, T., Zahringer, U., Heinz, E. (1999). "Cloning and functional expression of UGT genes encoding sterol glucosyltransferases from Saccharomyces cerevisiae, Candida albicans, Pichia pastoris, and Dictyostelium discoideum." J Biol Chem 274:13048-13059.10224056
  • Koffel, R., Tiwari, R., Falquet, L., Schneiter, R. (2005). "The Saccharomyces cerevisiae YLL012/YEH1, YLR020/YEH2, and TGL1 genes encode a novel family of membrane-anchored lipases that are required for steryl ester hydrolysis." Mol Cell Biol 25:1655-1668.15713625
  • Zweytick, D., Leitner, E., Kohlwein, S. D., Yu, C., Rothblatt, J., Daum, G. (2000). "Contribution of Are1p and Are2p to steryl ester synthesis in the yeast Saccharomyces cerevisiae." Eur J Biochem 267:1075-1082.10672016
Synthesis Reference:He, Xiuping; Zhang, Borun; Tan, Huarong. Overexpression of a sterol C-24(28) reductase increases ergosterol production in Saccharomyces cerevisiae. Biotechnology Letters (2003), 25(10), 773-778.
External Links:
ResourceLink
CHEBI ID16933
HMDB IDHMDB00878
Pubchem Compound ID444679
Kegg IDC01694
ChemSpider ID22889659
FOODB IDNot Available
WikipediaErgosterol
BioCyc IDERGOSTEROL

Enzymes

General function:
Involved in O-acyltransferase activity
Specific function:
Ensures probably most of the acyltransferase activity. Suppression of ARE2 reduces sterol ester levels to 25% of the normal value
Gene Name:
ARE2
Uniprot ID:
P53629
Molecular weight:
74022.20313
Reactions
Acyl-CoA + cholesterol → CoA + cholesterol ester.
General function:
Involved in O-acyltransferase activity
Specific function:
Acyl-CoA + cholesterol = CoA + cholesterol ester
Gene Name:
ARE1
Uniprot ID:
P25628
Molecular weight:
71612.5
Reactions
Acyl-CoA + cholesterol → CoA + cholesterol ester.
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
May be involved in decane metabolism and autophagy. Involved in the biosynthesis of sterol glucoside
Gene Name:
ATG26
Uniprot ID:
Q06321
Molecular weight:
136053.0
Reactions
UDP-glucose + a sterol → UDP + a sterol 3-beta-D-glucoside.
General function:
Involved in delta24(24-1) sterol reductase activity
Specific function:
Ergosterol + NADP(+) = ergosta- 5,7,22,24(24(1))-tetraen-3-beta-ol + NADPH
Gene Name:
ERG4
Uniprot ID:
P25340
Molecular weight:
56039.30078
Reactions
Ergosterol + NADP(+) → ergosta-5,7,22,24(24(1))-tetraen-3-beta-ol + NADPH.
General function:
Involved in lipid metabolic process
Specific function:
Mediates the hydrolysis of steryl esters. Required for mobilization of steryl ester, thereby playing a central role in lipid metabolism. May have weak lipase activity toward triglycerides upon some conditions, however, the relevance of such activity is unclear in vivo
Gene Name:
TGL1
Uniprot ID:
P34163
Molecular weight:
62978.39844
Reactions
A steryl ester + H(2)O → a sterol + a fatty acid.
General function:
Involved in lipid metabolic process
Specific function:
Mediates the hydrolysis of steryl esters, thereby playing a central role in lipid metabolism. Under heme-deficient conditions, it constitutes the major steryl ester hydrolase, suggesting that it plays a central role in mobilization of steryl esters under anaerobic conditions
Gene Name:
YEH1
Uniprot ID:
Q07804
Molecular weight:
66507.39844
Reactions
A steryl ester + H(2)O → a sterol + a fatty acid.
General function:
Involved in lipid metabolic process
Specific function:
Mediates the hydrolysis of steryl esters. Required for mobilization of steryl ester, thereby playing a central role in lipid metabolism
Gene Name:
YEH2
Uniprot ID:
Q07950
Molecular weight:
62446.0
Reactions
A steryl ester + H(2)O → a sterol + a fatty acid.

Transporters

General function:
Involved in ATP binding
Specific function:
Transporter involved in the uptake of sterol
Gene Name:
AUS1
Uniprot ID:
Q08409
Molecular weight:
157750.0
General function:
Involved in ATP binding
Specific function:
Transporter involved in the uptake of sterol
Gene Name:
PDR11
Uniprot ID:
P40550
Molecular weight:
160536.0