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Record Information
Version5.0
StatusDetected and Quantified
Creation Date2006-05-22 14:17:31 UTC
Update Date2022-03-07 02:49:12 UTC
HMDB IDHMDB0001993
Secondary Accession Numbers
  • HMDB0001331
  • HMDB01331
  • HMDB01993
Metabolite Identification
Common Name7a-Hydroxy-cholestene-3-one
Description7a-Hydroxy-cholestene-3-one, also known as cholest-4-en-7alpha-ol-3-one or 7 alpha-3ox-C, belongs to the class of organic compounds known as cholesterols and derivatives. Cholesterols and derivatives are compounds containing a 3-hydroxylated cholestane core. Thus, 7a-hydroxy-cholestene-3-one is considered to be a bile acid lipid molecule. 7a-Hydroxy-cholestene-3-one is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral.
Structure
Data?1582752222
Synonyms
ValueSource
7alpha-Hydroxy-4-cholesten-3-oneChEBI
Cholest-4-en-7alpha-ol-3-oneChEBI
7a-Hydroxy-4-cholesten-3-oneGenerator
7Α-hydroxy-4-cholesten-3-oneGenerator
Cholest-4-en-7a-ol-3-oneGenerator
Cholest-4-en-7α-ol-3-oneGenerator
7 alpha-3Ox-CHMDB
7 alpha-Hydroxy-4-cholesten-3-oneHMDB
7-a-Hydroxy-4-cholesten-3-oneHMDB
7-a-Hydroxycholest-4-en-3-oneHMDB
7-alpha-Hydroxy-4-cholesten-3-oneHMDB
7-alpha-Hydroxycholest-4-en-3-oneHMDB
7-Hydroxycholest-4-en-3-oneHMDB
7a-Hydroxy-4-cholesten-3-one-12alphaHMDB
7alpha-Hydroxycholest-4-en-3-oneHMDB
HCOHMDB
Cholest-4-en-7 alpha-ol-3-oneHMDB
7-Hydroxy-4-cholesten-3-oneHMDB
Chemical FormulaC27H44O2
Average Molecular Weight400.6371
Monoisotopic Molecular Weight400.334130652
IUPAC Name(1S,2R,9R,10S,11S,14R,15R)-9-hydroxy-2,15-dimethyl-14-[(2R)-6-methylheptan-2-yl]tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-6-en-5-one
Traditional Name7α-hydroxy-4-cholesten-3-one
CAS Registry Number3862-25-7
SMILES
[H][C@@]1(CC[C@@]2([H])[C@]3([H])[C@H](O)CC4=CC(=O)CC[C@]4(C)[C@@]3([H])CC[C@]12C)[C@H](C)CCCC(C)C
InChI Identifier
InChI=1S/C27H44O2/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/h15,17-18,21-25,29H,6-14,16H2,1-5H3/t18-,21-,22+,23+,24-,25+,26+,27-/m1/s1
InChI KeyIOIZWEJGGCZDOL-RQDYSCIWSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as cholesterols and derivatives. Cholesterols and derivatives 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
  • 3-oxo-delta-4-steroid
  • 3-oxosteroid
  • 7-hydroxysteroid
  • Oxosteroid
  • Hydroxysteroid
  • Delta-4-steroid
  • Cyclohexenone
  • Cyclic alcohol
  • Cyclic ketone
  • Secondary alcohol
  • Ketone
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Carbonyl group
  • Organic oxide
  • Organooxygen compound
  • Alcohol
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic compounds
External Descriptors
Ontology
Physiological effect
Disposition
Biological locationRoute of exposureSource
Process
Role
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.00017 g/LALOGPS
logP5.46ALOGPS
logP6.37ChemAxon
logS-6.4ALOGPS
pKa (Strongest Acidic)17.14ChemAxon
pKa (Strongest Basic)-0.64ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area37.3 ŲChemAxon
Rotatable Bond Count5ChemAxon
Refractivity121.16 m³·mol⁻¹ChemAxon
Polarizability50.6 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+198.50231661259
DarkChem[M-H]-193.99231661259
DeepCCS[M-2H]-238.2130932474
DeepCCS[M+Na]+212.23430932474
AllCCS[M+H]+205.232859911
AllCCS[M+H-H2O]+203.132859911
AllCCS[M+NH4]+207.232859911
AllCCS[M+Na]+207.732859911
AllCCS[M-H]-204.532859911
AllCCS[M+Na-2H]-206.332859911
AllCCS[M+HCOO]-208.432859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
7a-Hydroxy-cholestene-3-one[H][C@@]1(CC[C@@]2([H])[C@]3([H])[C@H](O)CC4=CC(=O)CC[C@]4(C)[C@@]3([H])CC[C@]12C)[C@H](C)CCCC(C)C3289.8Standard polar33892256
7a-Hydroxy-cholestene-3-one[H][C@@]1(CC[C@@]2([H])[C@]3([H])[C@H](O)CC4=CC(=O)CC[C@]4(C)[C@@]3([H])CC[C@]12C)[C@H](C)CCCC(C)C3329.0Standard non polar33892256
7a-Hydroxy-cholestene-3-one[H][C@@]1(CC[C@@]2([H])[C@]3([H])[C@H](O)CC4=CC(=O)CC[C@]4(C)[C@@]3([H])CC[C@]12C)[C@H](C)CCCC(C)C3498.2Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
7a-Hydroxy-cholestene-3-one,1TMS,isomer #1CC(C)CCC[C@@H](C)[C@H]1CC[C@H]2[C@H]3[C@H](CC[C@@]21C)[C@@]1(C)CCC(=O)C=C1C[C@H]3O[Si](C)(C)C3366.5Semi standard non polar33892256
7a-Hydroxy-cholestene-3-one,1TMS,isomer #2CC(C)CCC[C@@H](C)[C@H]1CC[C@H]2[C@H]3[C@H](CC[C@@]21C)[C@@]1(C)CC=C(O[Si](C)(C)C)C=C1C[C@H]3O3298.0Semi standard non polar33892256
7a-Hydroxy-cholestene-3-one,2TMS,isomer #1CC(C)CCC[C@@H](C)[C@H]1CC[C@H]2[C@H]3[C@H](CC[C@@]21C)[C@@]1(C)CC=C(O[Si](C)(C)C)C=C1C[C@H]3O[Si](C)(C)C3175.6Semi standard non polar33892256
7a-Hydroxy-cholestene-3-one,2TMS,isomer #1CC(C)CCC[C@@H](C)[C@H]1CC[C@H]2[C@H]3[C@H](CC[C@@]21C)[C@@]1(C)CC=C(O[Si](C)(C)C)C=C1C[C@H]3O[Si](C)(C)C3322.7Standard non polar33892256
7a-Hydroxy-cholestene-3-one,2TMS,isomer #1CC(C)CCC[C@@H](C)[C@H]1CC[C@H]2[C@H]3[C@H](CC[C@@]21C)[C@@]1(C)CC=C(O[Si](C)(C)C)C=C1C[C@H]3O[Si](C)(C)C3462.2Standard polar33892256
7a-Hydroxy-cholestene-3-one,1TBDMS,isomer #1CC(C)CCC[C@@H](C)[C@H]1CC[C@H]2[C@H]3[C@H](CC[C@@]21C)[C@@]1(C)CCC(=O)C=C1C[C@H]3O[Si](C)(C)C(C)(C)C3597.5Semi standard non polar33892256
7a-Hydroxy-cholestene-3-one,1TBDMS,isomer #2CC(C)CCC[C@@H](C)[C@H]1CC[C@H]2[C@H]3[C@H](CC[C@@]21C)[C@@]1(C)CC=C(O[Si](C)(C)C(C)(C)C)C=C1C[C@H]3O3531.9Semi standard non polar33892256
7a-Hydroxy-cholestene-3-one,2TBDMS,isomer #1CC(C)CCC[C@@H](C)[C@H]1CC[C@H]2[C@H]3[C@H](CC[C@@]21C)[C@@]1(C)CC=C(O[Si](C)(C)C(C)(C)C)C=C1C[C@H]3O[Si](C)(C)C(C)(C)C3648.7Semi standard non polar33892256
7a-Hydroxy-cholestene-3-one,2TBDMS,isomer #1CC(C)CCC[C@@H](C)[C@H]1CC[C@H]2[C@H]3[C@H](CC[C@@]21C)[C@@]1(C)CC=C(O[Si](C)(C)C(C)(C)C)C=C1C[C@H]3O[Si](C)(C)C(C)(C)C3721.8Standard non polar33892256
7a-Hydroxy-cholestene-3-one,2TBDMS,isomer #1CC(C)CCC[C@@H](C)[C@H]1CC[C@H]2[C@H]3[C@H](CC[C@@]21C)[C@@]1(C)CC=C(O[Si](C)(C)C(C)(C)C)C=C1C[C@H]3O[Si](C)(C)C(C)(C)C3662.3Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 7a-Hydroxy-cholestene-3-one GC-MS (Non-derivatized) - 70eV, Positivesplash10-00dr-1339000000-8b87f8914863b4c7e8e72017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 7a-Hydroxy-cholestene-3-one GC-MS (1 TMS) - 70eV, Positivesplash10-0a6r-4672900000-f5cd21522bdf7607c5cb2017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 7a-Hydroxy-cholestene-3-one GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7a-Hydroxy-cholestene-3-one 10V, Negative-QTOFsplash10-0002-0009000000-b03a7cbfe5ca7374d51f2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7a-Hydroxy-cholestene-3-one 20V, Negative-QTOFsplash10-0002-0009000000-903f15d46f6bf74496232016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7a-Hydroxy-cholestene-3-one 40V, Negative-QTOFsplash10-00lr-1009000000-fd9c44e4f27a3c62b7e82016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7a-Hydroxy-cholestene-3-one 10V, Negative-QTOFsplash10-0002-0009000000-dc23ba87137530d83f682021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7a-Hydroxy-cholestene-3-one 20V, Negative-QTOFsplash10-0002-0009000000-dc23ba87137530d83f682021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7a-Hydroxy-cholestene-3-one 40V, Negative-QTOFsplash10-0002-0009000000-75e53e521203e582561b2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7a-Hydroxy-cholestene-3-one 10V, Positive-QTOFsplash10-0f89-0019500000-764a74c3942ad452aa8e2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7a-Hydroxy-cholestene-3-one 20V, Positive-QTOFsplash10-0f89-3339100000-87e6e598932d57a6274e2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7a-Hydroxy-cholestene-3-one 40V, Positive-QTOFsplash10-0ab9-8469000000-b55e4f0de6f6dbfbe0932016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7a-Hydroxy-cholestene-3-one 10V, Positive-QTOFsplash10-0udi-0001900000-7ee7f5ca27c449403c352021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7a-Hydroxy-cholestene-3-one 20V, Positive-QTOFsplash10-0pvl-9246300000-d08ac46b391d426972382021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7a-Hydroxy-cholestene-3-one 40V, Positive-QTOFsplash10-0a4l-9620000000-e3dea04967eb9e6421c12021-09-22Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Extracellular
Biospecimen Locations
  • Blood
  • Urine
Tissue Locations
  • Liver
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
UrineDetected and Quantified109.8 +/- 16.44 umol/mmol creatinineAdult (>18 years old)BothNormal details
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected and Quantified0.18 (0.102-0.28) uMAdult (>18 years old)BothIrritable bowel syndrome (IBS) details
BloodDetected and Quantified0.13 (0.09-0.17) uMAdult (>18 years old)BothDiverticular disease details
BloodDetected and Quantified0.15 uMAdult (>18 years old)BothIleocysoiplasty details
BloodDetected and Quantified0.132 uMAdult (>18 years old)BothMeckels diverticulum details
BloodDetected and Quantified0.127 uMAdult (>18 years old)BothAtrophic gastritis details
BloodDetected and Quantified0.12 uMAdult (>18 years old)BothCronh's ileitis details
BloodDetected and Quantified0.0999 uMAdult (>18 years old)BothChronic pancreatitis details
BloodDetected and Quantified0.16 (0.09-0.25) uMAdult (>18 years old)BothAlcohol abuse details
BloodDetected and Quantified0.033 +/- 0.011 uMAdult (>18 years old)BothGallstone disease details
Associated Disorders and Diseases
Disease References
Gallbladder disease
  1. Hillebrant CG, Axelson M, Bjorkhem I, Wang FH, Nyberg B, Einarsson C: Effects of short-term treatment with pravastatin on the hepatic synthesis of cholesterol and bile acids in gallstone patients. Eur J Clin Invest. 1998 Apr;28(4):324-8. [PubMed:9615912 ]
Irritable bowel syndrome
  1. Brydon WG, Nyhlin H, Eastwood MA, Merrick MV: Serum 7 alpha-hydroxy-4-cholesten-3-one and selenohomocholyltaurine (SeHCAT) whole body retention in the assessment of bile acid induced diarrhoea. Eur J Gastroenterol Hepatol. 1996 Feb;8(2):117-23. [PubMed:8723414 ]
Diverticular disease
  1. Brydon WG, Nyhlin H, Eastwood MA, Merrick MV: Serum 7 alpha-hydroxy-4-cholesten-3-one and selenohomocholyltaurine (SeHCAT) whole body retention in the assessment of bile acid induced diarrhoea. Eur J Gastroenterol Hepatol. 1996 Feb;8(2):117-23. [PubMed:8723414 ]
Ileocystoplasty
  1. Brydon WG, Nyhlin H, Eastwood MA, Merrick MV: Serum 7 alpha-hydroxy-4-cholesten-3-one and selenohomocholyltaurine (SeHCAT) whole body retention in the assessment of bile acid induced diarrhoea. Eur J Gastroenterol Hepatol. 1996 Feb;8(2):117-23. [PubMed:8723414 ]
Meckels diverticulum
  1. Brydon WG, Nyhlin H, Eastwood MA, Merrick MV: Serum 7 alpha-hydroxy-4-cholesten-3-one and selenohomocholyltaurine (SeHCAT) whole body retention in the assessment of bile acid induced diarrhoea. Eur J Gastroenterol Hepatol. 1996 Feb;8(2):117-23. [PubMed:8723414 ]
Atrophic gastritis
  1. Brydon WG, Nyhlin H, Eastwood MA, Merrick MV: Serum 7 alpha-hydroxy-4-cholesten-3-one and selenohomocholyltaurine (SeHCAT) whole body retention in the assessment of bile acid induced diarrhoea. Eur J Gastroenterol Hepatol. 1996 Feb;8(2):117-23. [PubMed:8723414 ]
Crohn's disease
  1. Brydon WG, Nyhlin H, Eastwood MA, Merrick MV: Serum 7 alpha-hydroxy-4-cholesten-3-one and selenohomocholyltaurine (SeHCAT) whole body retention in the assessment of bile acid induced diarrhoea. Eur J Gastroenterol Hepatol. 1996 Feb;8(2):117-23. [PubMed:8723414 ]
Chronic pancreatitis
  1. Brydon WG, Nyhlin H, Eastwood MA, Merrick MV: Serum 7 alpha-hydroxy-4-cholesten-3-one and selenohomocholyltaurine (SeHCAT) whole body retention in the assessment of bile acid induced diarrhoea. Eur J Gastroenterol Hepatol. 1996 Feb;8(2):117-23. [PubMed:8723414 ]
Alcoholism
  1. Brydon WG, Nyhlin H, Eastwood MA, Merrick MV: Serum 7 alpha-hydroxy-4-cholesten-3-one and selenohomocholyltaurine (SeHCAT) whole body retention in the assessment of bile acid induced diarrhoea. Eur J Gastroenterol Hepatol. 1996 Feb;8(2):117-23. [PubMed:8723414 ]
Associated OMIM IDs
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB022786
KNApSAcK IDNot Available
Chemspider ID110306
KEGG Compound IDC05455
BioCyc IDNot Available
BiGG ID45848
Wikipedia LinkNot Available
METLIN ID6419
PubChem Compound123743
PDB IDNot Available
ChEBI ID17899
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceAlexander, David L.; Fisher, Jed F. A convenient synthesis of 7a-hydroxycholest-4-en-3-one by the hydroxypropyl-b-cyclodextrin-facilitated cholesterol oxidase oxidation of 3b,7a-cholest-5-ene-3,7-diol. Steroids (1995), 60(3), 290-4.
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Skrede S, Bjorkhem I, Buchmann MS, Hopen G, Fausa O: A novel pathway for biosynthesis of cholestanol with 7 alpha-hydroxylated C27-steroids as intermediates, and its importance for the accumulation of cholestanol in cerebrotendinous xanthomatosis. J Clin Invest. 1985 Feb;75(2):448-55. [PubMed:3919058 ]
  2. Lin RC, Fillenwarth MJ, Du X: Cytotoxic effect of 7alpha-hydroxy-4-cholesten-3-one on HepG2 cells: hypothetical role of acetaldehyde-modified delta4-3-ketosteroid-5beta-reductase (the 37-kd-liver protein) in the pathogenesis of alcoholic liver injury in the rat. Hepatology. 1998 Jan;27(1):100-7. [PubMed:9425924 ]
  3. Axelson M, Bjorkhem I, Reihner E, Einarsson K: The plasma level of 7 alpha-hydroxy-4-cholesten-3-one reflects the activity of hepatic cholesterol 7 alpha-hydroxylase in man. FEBS Lett. 1991 Jun 24;284(2):216-8. [PubMed:2060639 ]
  4. Skrede S, Bjorkhem I: A novel route for the biosynthesis of cholestanol, and its significance for the pathogenesis of cerebrotendinous xanthomatosis. Scand J Clin Lab Invest Suppl. 1985;177:15-21. [PubMed:3865344 ]
  5. Skrede S, Buchmann MS, Bjorkhem I: Hepatic 7 alpha-dehydroxylation of bile acid intermediates, and its significance for the pathogenesis of cerebrotendinous xanthomatosis. J Lipid Res. 1988 Feb;29(2):157-64. [PubMed:3367085 ]
  6. Sauter GH, Munzing W, von Ritter C, Paumgartner G: Bile acid malabsorption as a cause of chronic diarrhea: diagnostic value of 7alpha-hydroxy-4-cholesten-3-one in serum. Dig Dis Sci. 1999 Jan;44(1):14-9. [PubMed:9952217 ]
  7. Brydon WG, Nyhlin H, Eastwood MA, Merrick MV: Serum 7 alpha-hydroxy-4-cholesten-3-one and selenohomocholyltaurine (SeHCAT) whole body retention in the assessment of bile acid induced diarrhoea. Eur J Gastroenterol Hepatol. 1996 Feb;8(2):117-23. [PubMed:8723414 ]

Enzymes

General function:
Involved in oxidoreductase activity
Specific function:
Efficiently catalyzes the reduction of progesterone, androstenedione, 17-alpha-hydroxyprogesterone and testosterone to 5-beta-reduced metabolites. The bile acid intermediates 7-alpha,12-alpha-dihydroxy-4-cholesten-3-one and 7-alpha-hydroxy-4-cholesten-3-one can also act as substrates.
Gene Name:
AKR1D1
Uniprot ID:
P51857
Molecular weight:
32889.38
Reactions
7a-Hydroxy-5b-cholestan-3-one + NADP → 7a-Hydroxy-cholestene-3-one + NADPH + Hydrogen Iondetails
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
Cholest-5-ene-3-beta,7-alpha-diol + NAD → 7a-Hydroxy-cholestene-3-one + NADHdetails
7alpha-Hydroxycholesterol + NAD → 7a-Hydroxy-cholestene-3-one + NADH + Hydrogen Iondetails
General function:
Involved in monooxygenase activity
Specific function:
Involved in bile acid synthesis and is responsible for the conversion of 7 alpha-hydroxy-4-cholesten-3-one into 7 alpha, 12 alpha-dihydroxy-4-cholesten-3-one. Responsible for the balance between formation of cholic acid and chenodeoxycholic acid. Has a rather broad substrate specificity including a number of 7-alpha-hydroxylated C27 steroids.
Gene Name:
CYP8B1
Uniprot ID:
Q9UNU6
Molecular weight:
58068.01
Reactions
7a-Hydroxy-cholestene-3-one + NADPH + Oxygen → 7a,12a-Dihydroxy-cholestene-3-one + NADP + Waterdetails
7a-Hydroxy-cholestene-3-one + Hydrogen Ion + Oxygen + NADPH → 7a,12a-Dihydroxy-cholestene-3-one + NADP + Waterdetails