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Record Information
Version4.0
StatusExpected but not Quantified
Creation Date2008-08-13 11:32:19 UTC
Update Date2019-07-23 05:47:46 UTC
HMDB IDHMDB0006842
Secondary Accession Numbers
  • HMDB0000997
  • HMDB00997
  • HMDB06842
Metabolite Identification
Common Name5a-Cholesta-7,24-dien-3b-ol
Description5alpha-Cholesta-7,24-dien-3beta-ol is involved in the biosynthesis of steroids. 5alpha-Cholesta-7,24-dien-3beta-ol is reversibly converted to 5alpha-Cholest-7-en-3beta-ol by delta24-sterol reductase [EC:1.3.1.72]. 5alpha-Cholesta-7,24-dien-3beta-ol is also converted to zymosterol by cholestenol delta-isomerase [EC:5.3.3.5]. 5alpha-Cholesta-7,24-dien-3beta-ol is also converted to 7-Dehydrodesmosterol. 5a-Cholesta-7,24-dien-3b-ol is a substrate for 3-beta-hydroxysteroid-delta(8),delta(7)-isomerase.
Structure
Data?1563860866
Synonyms
ValueSource
1-Arachidoyl-2-arachidonoyl-sn-glycero-3-phosphocholineChEBI
1-C20:0-2-C20:4(Omega-6)-phosphatidylcholineChEBI
1-Eicosanoyl-2-(5Z,8Z,11Z,14Z)-eicosatetraenoyl-sn-glycero-3-phosphocholineChEBI
1-Eicosanoyl-2-arachidonoyl-sn-glycero-3-phosphocholineChEBI
1-Icosanoyl-2-(5Z,8Z,11Z,14Z)-icosatetraenoyl-sn-glycero-3-phosphocholineChEBI
PC(20:0/20:4)ChEBI
PC(20:0/20:4omega6)ChEBI
PC(40:4)ChEBI
Phosphatidylcholine(20:0/20:4)ChEBI
Phosphatidylcholine(20:0/20:4omega6)ChEBI
Phosphatidylcholine(40:4)ChEBI
1-Arachidonyl-2-arachidonoyl-sn-glycero-3-phosphocholineHMDB
GPCho(20:0/20:4)HMDB
LecithinHMDB
GPCho(40:4)HMDB
1-Eicosanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphocholineHMDB
5 alpha-Cholesta-7,24-dien-3beta-olHMDB
5alpha-Cholesta-7,24-dien-3beta-olHMDB
5 alpha-Cholesta-7,24-dien-3 beta-olMeSH, HMDB
Cholesta-7,24-dien-3-olMeSH, HMDB
Cholesta-7,24-dien-3-ol, (3beta)-isomerMeSH, HMDB
Chemical FormulaC27H44O
Average Molecular Weight384.6377
Monoisotopic Molecular Weight384.33921603
IUPAC Name(2S,5S,7S,11R,14R,15R)-2,15-dimethyl-14-[(2R)-6-methylhept-5-en-2-yl]tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-9-en-5-ol
Traditional Name(2S,5S,7S,11R,14R,15R)-2,15-dimethyl-14-[(2R)-6-methylhept-5-en-2-yl]tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-9-en-5-ol
CAS Registry Number651-54-7
SMILES
[H][C@@](C)(CCC=C(C)C)[C@@]1([H])CC[C@@]2([H])C3=CC[C@@]4([H])C[C@@H](O)CC[C@]4(C)C3CC[C@]12C
InChI Identifier
InChI=1S/C27H44O/c1-18(2)7-6-8-19(3)23-11-12-24-22-10-9-20-17-21(28)13-15-26(20,4)25(22)14-16-27(23,24)5/h7,10,19-21,23-25,28H,6,8-9,11-17H2,1-5H3/t19-,20+,21+,23-,24+,25?,26+,27-/m1/s1
InChI KeyPKEPPDGGTSZLBL-FZAJRYLSSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as phosphatidylcholines. These are glycerophosphocholines in which the two free -OH are attached to one fatty acid each through an ester linkage.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassGlycerophospholipids
Sub ClassGlycerophosphocholines
Direct ParentPhosphatidylcholines
Alternative Parents
Substituents
  • Diacylglycero-3-phosphocholine
  • Phosphocholine
  • Fatty acid ester
  • Dialkyl phosphate
  • Dicarboxylic acid or derivatives
  • Organic phosphoric acid derivative
  • Phosphoric acid ester
  • Alkyl phosphate
  • Fatty acyl
  • Quaternary ammonium salt
  • Tetraalkylammonium salt
  • Carboxylic acid ester
  • Carboxylic acid derivative
  • Organic oxygen compound
  • Organic nitrogen compound
  • Carbonyl group
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxide
  • Organopnictogen compound
  • Amine
  • Organic salt
  • Hydrocarbon derivative
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
Physiological effect

Health effect:

Disposition

Route of exposure:

Source:

Biological location:

Process

Naturally occurring process:

Role

Industrial application:

Biological role:

Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point147 - 151 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility0.00016 g/LALOGPS
logP7.4ALOGPS
logP6.71ChemAxon
logS-6.4ALOGPS
pKa (Strongest Acidic)18.36ChemAxon
pKa (Strongest Basic)-1.3ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area20.23 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity121.47 m³·mol⁻¹ChemAxon
Polarizability49.73 ųChemAxon
Number of Rings4ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0aor-1019000000-626e97645b632a1ff077JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (1 TMS) - 70eV, Positivesplash10-002f-3005900000-d8ed9d20e09e9fa8cc7dJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-014r-0019000000-7a6c3d9d9c76b57c466dJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-014r-3149000000-c495f8dafd8943c3d42eJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0cdi-4359000000-ad675d67e0ffcf298cfdJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-001i-0009000000-8ff4cced50a3c638abbaJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-001i-0009000000-7c6022da576a7535f88dJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0uxr-1019000000-d3fac15fb12cab1c814fJSpectraViewer
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane (predicted from logP)
  • Endoplasmic reticulum
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDNot Available
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound24779048
PDB IDNot Available
ChEBI ID74970
Food Biomarker OntologyNot Available
VMH IDNot Available
References
Synthesis ReferenceMoreau, Jacques P.; Aberhart, Donald J.; Caspi, Eliahu. Synthesis of 5a-cholesta-7,24-dien-3b-ol and cholesta-5,7,24-trien-3b-ol. Journal of Organic Chemistry (1974), 39(14), 2018-23.
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available

Enzymes

General function:
Involved in cholestenol delta-isomerase activity
Specific function:
Catalyzes the conversion of Delta(8)-sterols to their corresponding Delta(7)-isomers.
Gene Name:
EBP
Uniprot ID:
Q15125
Molecular weight:
26352.615
Reactions
Zymosterol intermediate 2 → 5a-Cholesta-7,24-dien-3b-oldetails
General function:
Energy production and conversion
Specific function:
Catalyzes the reduction of the delta-24 double bond of sterol intermediates. Protects cells from oxidative stress by reducing caspase 3 activity during apoptosis induced by oxidative stress. Also protects against amyloid-beta peptide-induced apoptosis.
Gene Name:
DHCR24
Uniprot ID:
Q15392
Molecular weight:
60100.805
Reactions
Lathosterol + NADP → 5a-Cholesta-7,24-dien-3b-ol + NADPH + Hydrogen Iondetails