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Record Information
Version3.6
Creation Date2009-07-13 14:03:09 UTC
Update Date2013-02-09 00:29:11 UTC
HMDB IDHMDB12459
Secondary Accession NumbersNone
Metabolite Identification
Common Name7 alpha,26-Dihydroxy-4-cholesten-3-one
Description7 alpha,26-Dihydroxy-4-cholesten-3-one is involved in primary bile acid biosynthesis. 7 alpha,26-Dihydroxy-4-cholesten-3-one is produced from 7 alpha,27-Dihydroxycholesterol through the action of HSD3B7 (EC:1.1.1.181). 7 alpha,26-Dihydroxy-4-cholesten-3-one can then be converted to 7 alpha-Hydroxy-3-oxo-4-cholestenoate by CYP27A (EC:1.14.13.15).
Structure
Thumb
Synonyms
  1. (7alpha)-7,26-dihydroxy-Cholest-4-en-3-one
  2. 4-Cholesten-7alpha,26-diol-3-one
  3. 7,26-Dhxyclso
  4. 7alpha,26-Dihydroxy-4-cholesten-3-one
  5. 7alpha,26-dihydroxycholest-4-en-3-one
Chemical FormulaC27H44O3
Average Molecular Weight416.6365
Monoisotopic Molecular Weight416.329045274
IUPAC Name(2R,9R,15R)-9-hydroxy-14-[(2R)-7-hydroxy-6-methylheptan-2-yl]-2,15-dimethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-6-en-5-one
Traditional IUPAC Name(2R,9R,15R)-9-hydroxy-14-[(2R)-7-hydroxy-6-methylheptan-2-yl]-2,15-dimethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-6-en-5-one
CAS Registry Number4675-38-1
SMILES
CC(CO)CCC[C@@H](C)C1CCC2C3[C@H](O)CC4=CC(=O)CC[C@]4(C)C3CC[C@]12C
InChI Identifier
InChI=1S/C27H44O3/c1-17(16-28)6-5-7-18(2)21-8-9-22-25-23(11-13-27(21,22)4)26(3)12-10-20(29)14-19(26)15-24(25)30/h14,17-18,21-25,28,30H,5-13,15-16H2,1-4H3/t17?,18-,21?,22?,23?,24-,25?,26+,27-/m1/s1
InChI KeyKVJVJJWIEXCECB-JZGXDVPNSA-N
Chemical Taxonomy
KingdomOrganic Compounds
Super ClassLipids
ClassSteroids and Steroid Derivatives
Sub ClassBile Acids, Alcohols and Derivatives
Other Descriptors
  • Aliphatic Homopolycyclic Compounds
  • Bile Acids, Alcohols and Derivatives
  • Sesterterpenes
Substituents
  • 27 Hydroxy Steroid
  • 3 Keto Steroid
  • 7 Hydroxy Steroid
  • Cyclic Alcohol
  • Cyclohexane
  • Cyclohexene
  • Decaline
  • Fatty Alcohol
  • Ketone
  • Primary Alcohol
  • Secondary Alcohol
Direct ParentDihydroxy Bile Acids, Alcohols and Derivatives
Ontology
StatusExpected and Not Quantified
Origin
  • Endogenous
  • Food
Biofunction
  • Cell signaling
  • Fuel and energy storage
  • Fuel or energy source
  • Membrane integrity/stability
Application
  • Nutrients
  • Stabilizers
  • Surfactants and Emulsifiers
Cellular locations
  • Extracellular
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility0.0029 g/LALOGPS
logP4.6ALOGPS
logP5.01ChemAxon
logS-5.2ALOGPS
pKa (Strongest Acidic)17.14ChemAxon
pKa (Strongest Basic)-0.6ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area57.53ChemAxon
Rotatable Bond Count6ChemAxon
Refractivity123.01ChemAxon
Polarizability50.79ChemAxon
Spectra
SpectraNot Available
Biological Properties
Cellular Locations
  • Extracellular
Biofluid LocationsNot Available
Tissue LocationNot Available
Pathways
NameSMPDB LinkKEGG Link
Bile Acid BiosynthesisSMP00035map00120
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
DrugBank Metabolite IDNot Available
Phenol Explorer Compound IDNot Available
Phenol Explorer Metabolite IDNot Available
FoodDB IDFDB029075
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDC17336
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
NuGOwiki LinkHMDB12459
Metagene LinkHMDB12459
METLIN IDNot Available
PubChem Compound53481412
PDB IDNot Available
ChEBI IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available

Enzymes

General function:
Involved in monooxygenase activity
Specific function:
Catalyzes the first step in the oxidation of the side chain of sterol intermediates; the 27-hydroxylation of 5-beta-cholestane-3-alpha,7-alpha,12-alpha-triol. Has also a vitamin D3-25-hydroxylase activity.
Gene Name:
CYP27A1
Uniprot ID:
Q02318
Molecular weight:
60234.28
Reactions
7 alpha,26-Dihydroxy-4-cholesten-3-one + Oxygen + NADPH + Hydrogen Ion → 7 alpha-Hydroxy-3-oxo-4-cholestenoate + NADP + Waterdetails
General function:
Involved in 3-beta-hydroxy-delta5-steroid dehydrogenase activity
Specific function:
The 3-beta-HSD enzymatic system plays a crucial role in the biosynthesis of all classes of hormonal steroids. HSD VII is active against four 7-alpha-hydroxylated sterols. Does not metabolize several different C(19/21) steroids as substrates. Involved in bile acid synthesis.
Gene Name:
HSD3B7
Uniprot ID:
Q9H2F3
Molecular weight:
21322.265
Reactions
7-a,27-Dihydroxycholesterol + NAD → 7 alpha,26-Dihydroxy-4-cholesten-3-one + NADH + Hydrogen Iondetails