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Record Information
Version4.0
Creation Date2008-08-14 18:12:37 UTC
Update Date2017-09-27 08:24:49 UTC
HMDB IDHMDB0006893
Secondary Accession Numbers
  • HMDB06893
Metabolite Identification
Common Name3a,7a-Dihydroxy-5b-cholestane
Description3alpha,7alpha-Dihydroxy-5beta-cholestane is an intermediate in bile acid synthesis. Bile acids are steroid acids found predominantly in bile of mammals. The distinction between different bile acids is minute, depends only on presence or absence of hydroxyl groups on positions 3, 7, and 12. Bile acids are physiological detergents that facilitate excretion, absorption, and transport of fats and sterols in the intestine and liver. Bile acids are also steroidal amphipathic molecules derived from the catabolism of cholesterol. They modulate bile flow and lipid secretion, are essential for the absorption of dietary fats and vitamins, and have been implicated in the regulation of all the key enzymes involved in cholesterol homeostasis. Bile acids recirculate through the liver, bile ducts, small intestine and portal vein to form an enterohepatic circuit. They exist as anions at physiological pH and, consequently, require a carrier for transport across the membranes of the enterohepatic tissues. The unique detergent properties of bile acids are essential for the digestion and intestinal absorption of hydrophobic nutrients. Bile acids have potent toxic properties (e.g., membrane disruption) and there are a plethora of mechanisms to limit their accumulation in blood and tissues. (PMID: 11316487 , 16037564 , 12576301 , 11907135 ).
Structure
Thumb
Synonyms
ValueSource
3alpha,7alpha-Dihydroxy-5beta-cholestaneChEBI
DihydroxycoprostaneChEBI
3α,7α-dihydroxy-5β-cholestaneGenerator
5b-Cholestane-3a,7a-diolHMDB
5beta-Cholestane-3alpha,7alpha-diolHMDB
3,7-Dihydroxy-5-cholestaneMeSH
3,7-DihydroxycholestaneMeSH
5alpha-Cholestane-3beta,7beta-diolMeSH
Dihydroxycoprostane, (3alpha,5alpha,7alpha)-isomerMeSH
Dihydroxycoprostane, (3beta,5alpha,7alpha)-isomerMeSH
Chemical FormulaC27H48O2
Average Molecular Weight404.6688
Monoisotopic Molecular Weight404.36543078
IUPAC Name(1S,2S,5R,7S,9R,10R,11S,14R,15R)-2,15-dimethyl-14-[(2R)-6-methylheptan-2-yl]tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadecane-5,9-diol
Traditional Name5β-cholestane-3α,7α-diol
CAS Registry Number3862-26-8
SMILES
[H][C@@]1(CC[C@@]2([H])[C@]3([H])[C@H](O)C[C@]4([H])C[C@H](O)CC[C@]4(C)[C@@]3([H])CC[C@]12C)[C@H](C)CCCC(C)C
InChI Identifier
InChI=1S/C27H48O2/c1-17(2)7-6-8-18(3)21-9-10-22-25-23(12-14-27(21,22)5)26(4)13-11-20(28)15-19(26)16-24(25)29/h17-25,28-29H,6-16H2,1-5H3/t18-,19+,20-,21-,22+,23+,24-,25+,26+,27-/m1/s1
InChI KeyAPYVEUGLZHAHDJ-TVRYRFOISA-N
Chemical Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as cholesterols and derivatives. These are compounds containing a 3-hydroxylated cholestane core.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
Sub ClassCholestane steroids
Direct ParentCholesterols and derivatives
Alternative Parents
Substituents
  • Cholesterol-skeleton
  • Cholesterol
  • 7-hydroxysteroid
  • 3-alpha-hydroxysteroid
  • Hydroxysteroid
  • 3-hydroxysteroid
  • Cyclic alcohol
  • Secondary alcohol
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Organooxygen compound
  • Alcohol
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic compounds
External Descriptors
Ontology
Disposition

Biological Location:

  Subcellular:

Source:

  Biological:

    Animal:

Route of exposure:

  Enteral:

Process

Naturally occurring process:

  Biological process:

    Biochemical pathway:

    Cellular process:

Role

Indirect biological role:

Industrial application:

Biological role:

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 Solubility0.00011 g/LALOGPS
logP5.88ALOGPS
logP6.21ChemAxon
logS-6.5ALOGPS
pKa (Strongest Acidic)18.3ChemAxon
pKa (Strongest Basic)-0.54ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area40.46 ŲChemAxon
Rotatable Bond Count5ChemAxon
Refractivity121.36 m³·mol⁻¹ChemAxon
Polarizability51.59 ųChemAxon
Number of Rings4ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-06rl-1219000000-6af223a41b0a7a91af2cView in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (2 TMS) - 70eV, Positivesplash10-001i-3220590000-375bc120297d486a3b68View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-052r-0009200000-df25d1509241d9f73f0aView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-05n0-2129100000-1bfe2b042bf2b32bbabdView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0ab9-4129000000-cfef80f1eeab9ccd9236View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0udi-0003900000-9badc48971b46507f711View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0udr-0009800000-a236fdccb8989fe2c557View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-00dr-1009000000-ac762387fbd63dd8fee4View in MoNA
Biological Properties
Cellular Locations
  • Extracellular
Biofluid LocationsNot Available
Tissue LocationNot Available
Pathways
NameSMPDB/PathwhizKEGG
27-Hydroxylase DeficiencyPw000697Pw000697 greyscalePw000697 simpleNot Available
Bile Acid BiosynthesisPw000145Pw000145 greyscalePw000145 simpleMap00120
Cerebrotendinous Xanthomatosis (CTX)Pw000196Pw000196 greyscalePw000196 simpleNot Available
Congenital Bile Acid Synthesis Defect Type IIPw000192Pw000192 greyscalePw000192 simpleNot Available
Congenital Bile Acid Synthesis Defect Type IIIPw000193Pw000193 greyscalePw000193 simpleNot Available
Displaying entries 1 - 5 of 7 in total
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 IDFDB024140
KNApSAcK IDNot Available
Chemspider ID2338356
KEGG Compound IDC05452
BioCyc IDNot Available
BiGG ID45841
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound3080603
PDB IDNot Available
ChEBI ID28047
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. St-Pierre MV, Kullak-Ublick GA, Hagenbuch B, Meier PJ: Transport of bile acids in hepatic and non-hepatic tissues. J Exp Biol. 2001 May;204(Pt 10):1673-86. [PubMed:11316487 ]
  2. Claudel T, Staels B, Kuipers F: The Farnesoid X receptor: a molecular link between bile acid and lipid and glucose metabolism. Arterioscler Thromb Vasc Biol. 2005 Oct;25(10):2020-30. Epub 2005 Jul 21. [PubMed:16037564 ]
  3. Chiang JY: Bile acid regulation of hepatic physiology: III. Bile acids and nuclear receptors. Am J Physiol Gastrointest Liver Physiol. 2003 Mar;284(3):G349-56. [PubMed:12576301 ]
  4. Davis RA, Miyake JH, Hui TY, Spann NJ: Regulation of cholesterol-7alpha-hydroxylase: BAREly missing a SHP. J Lipid Res. 2002 Apr;43(4):533-43. [PubMed:11907135 ]

Enzymes

General function:
Involved in oxidoreductase activity
Specific function:
Catalyzes the transformation of the potent androgen dihydrotestosterone (DHT) into the less active form, 5-alpha-androstan-3-alpha,17-beta-diol (3-alpha-diol). Also has some 20-alpha-hydroxysteroid dehydrogenase activity. The biotransformation of the pesticide chlordecone (kepone) to its corresponding alcohol leads to increased biliary excretion of the pesticide and concomitant reduction of its neurotoxicity since bile is the major excretory route.
Gene Name:
AKR1C4
Uniprot ID:
P17516
Molecular weight:
37094.57
Reactions
3a,7a-Dihydroxy-5b-cholestane + NAD → 7a-Hydroxy-5b-cholestan-3-one + NADH + Hydrogen Iondetails
3a,7a-Dihydroxy-5b-cholestane + NADP → 7a-Hydroxy-5b-cholestan-3-one + NADPH + Hydrogen Iondetails
General function:
Involved in zinc ion binding
Specific function:
Not Available
Gene Name:
ADH1A
Uniprot ID:
P07327
Molecular weight:
39858.37
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
3a,7a-Dihydroxy-5b-cholestane + NADPH + Oxygen → 3 alpha,7 alpha,26-Trihydroxy-5beta-cholestane + NADP + Waterdetails