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Record Information
Version3.6
Creation Date2005-11-16 15:48:42 UTC
Update Date2016-02-11 01:02:33 UTC
HMDB IDHMDB00313
Secondary Accession NumbersNone
Metabolite Identification
Common Name16b-Hydroxyestrone
Description16b-Hydroxyestrone is an aromatized C18 steroid with a 3-hydroxyl group and a 17-ketone, a major mammalian estrogen. It is converted from androstenedione directly, or from testosterone via estradiol. In humans, it is produced primarily by the cyclic ovaries, placenta, and the adipose tissue of men and postmenopausal women.
Structure
Thumb
Synonyms
ValueSource
16Beta-HydroxyestroneChEMBL
16b-HydroxyestroneGenerator
16β-hydroxyestroneGenerator
16-HydroxyestroneHMDB
16alpha-HydroxyestroneHMDB
3,16-Dihydroxy-estra-1,3,5(10)-trien-17-oneHMDB
3,16-Dihydroxyestra-1,3,5(10)-trien-17-oneHMDB
Chemical FormulaC18H22O3
Average Molecular Weight286.3655
Monoisotopic Molecular Weight286.15689457
IUPAC Name(1S,10R,11S,13S,15S)-5,13-dihydroxy-15-methyltetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadeca-2(7),3,5-trien-14-one
Traditional Name16 α-hydroxyestrone
CAS Registry Number966-06-3
SMILES
[H][C@@]12C[C@H](O)C(=O)[C@@]1(C)CC[C@]1([H])C3=C(CC[C@@]21[H])C=C(O)C=C3
InChI Identifier
InChI=1S/C18H22O3/c1-18-7-6-13-12-5-3-11(19)8-10(12)2-4-14(13)15(18)9-16(20)17(18)21/h3,5,8,13-16,19-20H,2,4,6-7,9H2,1H3/t13-,14-,15+,16+,18+/m1/s1
InChI KeyInChIKey=WPOCIZJTELRQMF-LFRCEIEQSA-N
Chemical Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as estrogens and derivatives. These are steroids with a structure containing a 3-hydroxylated estrane.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
Sub ClassEstrane steroids
Direct ParentEstrogens and derivatives
Alternative Parents
Substituents
  • Estrogen-skeleton
  • 16-hydroxysteroid
  • 16-beta-hydroxysteroid
  • Oxosteroid
  • 17-oxosteroid
  • Hydroxysteroid
  • 3-hydroxysteroid
  • Phenanthrene
  • Tetralin
  • Benzenoid
  • Cyclic alcohol
  • Secondary alcohol
  • Ketone
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Alcohol
  • Aromatic homopolycyclic compound
Molecular FrameworkAromatic homopolycyclic compounds
External Descriptors
Ontology
StatusExpected but not Quantified
Origin
  • Endogenous
  • Food
Biofunction
  • Cell signaling
  • Fuel and energy storage
  • Fuel or energy source
  • Hormones, Membrane component
  • Membrane integrity/stability
Application
  • Nutrients
  • Stabilizers
  • Surfactants and Emulsifiers
Cellular locations
  • Extracellular
  • Membrane (predicted from logP)
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 Solubility0.047 mg/mLALOGPS
logP2.45ALOGPS
logP3.44ChemAxon
logS-3.8ALOGPS
pKa (Strongest Acidic)10.33ChemAxon
pKa (Strongest Basic)-3.5ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area57.53 Å2ChemAxon
Rotatable Bond Count0ChemAxon
Refractivity80.57 m3·mol-1ChemAxon
Polarizability32.29 Å3ChemAxon
Number of Rings4ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
SpectraNot Available
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane (predicted from logP)
Biofluid LocationsNot Available
Tissue LocationNot Available
PathwaysNot Available
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 IDFDB021940
KNApSAcK IDNot Available
Chemspider ID17215934
KEGG Compound IDC05300
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
NuGOwiki LinkHMDB00313
Metagene LinkHMDB00313
METLIN ID5302
PubChem Compound22833517
PDB IDNot Available
ChEBI IDNot Available
References
Synthesis ReferenceBiggerstaff, W. R.; Gallagher, T. F. 3,16b-Dihydroxy-1,3,5-estratrien-17-one and related compounds. Journal of Organic Chemistry (1957), 22 1220-2.
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Yokoyama K, Tajima M, Yoshida H, Nakayama M, Tokutome G, Sakagami H, Hosoya T: Plasma pteridine concentrations in patients with chronic renal failure. Nephrol Dial Transplant. 2002 Jun;17(6):1032-6. [12032193 ]

Enzymes

General function:
Involved in oxidoreductase activity
Specific function:
Capable of catalyzing the interconversion of testosterone and androstenedione, as well as estradiol and estrone. Also has 20-alpha-HSD activity. Uses NADH while EDH17B3 uses NADPH.
Gene Name:
HSD17B2
Uniprot ID:
P37059
Molecular weight:
42784.75
Reactions
Estriol + NAD → 16b-Hydroxyestrone + NADH + Hydrogen Iondetails
Estriol + NADP → 16b-Hydroxyestrone + NADPH + Hydrogen Iondetails
General function:
Involved in oxidoreductase activity
Specific function:
NAD-dependent 17-beta-hydroxysteroid dehydrogenase with highest activity towards estradiol. Has very low activity towards testosterone. The heteroteramer with CBR4 has NADH-dependent 3-ketoacyl-acyl carrier protein reductase activity. May play a role in biosynthesis of fatty acids in mitochondria.
Gene Name:
HSD17B8
Uniprot ID:
Q92506
Molecular weight:
26973.56
Reactions
Estriol + NAD → 16b-Hydroxyestrone + NADH + Hydrogen Iondetails
Estriol + NADP → 16b-Hydroxyestrone + NADPH + Hydrogen Iondetails
General function:
Involved in estradiol 17-beta-dehydrogenase activity
Specific function:
Favors the reduction of estrogens and androgens. Also has 20-alpha-HSD activity. Uses preferentially NADH.
Gene Name:
HSD17B1
Uniprot ID:
P14061
Molecular weight:
34949.715
Reactions
Estriol + NAD → 16b-Hydroxyestrone + NADH + Hydrogen Iondetails
Estriol + NADP → 16b-Hydroxyestrone + NADPH + Hydrogen Iondetails
General function:
Involved in oxidoreductase activity
Specific function:
Responsible for the reduction of the keto group on the C-3 of sterols.
Gene Name:
HSD17B7
Uniprot ID:
P56937
Molecular weight:
38205.77
Reactions
Estriol + NAD → 16b-Hydroxyestrone + NADH + Hydrogen Iondetails
Estriol + NADP → 16b-Hydroxyestrone + NADPH + Hydrogen Iondetails
General function:
Involved in oxidoreductase activity
Specific function:
NAD-dependent oxidoreductase with broad substrate specificity that shows both oxidative and reductive activity (in vitro). Has 17-beta-hydroxysteroid dehydrogenase activity towards various steroids (in vitro). Converts 5-alpha-androstan-3-alpha,17-beta-diol to androsterone and estradiol to estrone (in vitro). Has 3-alpha-hydroxysteroid dehydrogenase activity towards androsterone (in vitro). Has retinol dehydrogenase activity towards all-trans-retinol (in vitro). Can convert androsterone to epi-androsterone. Androsterone is first oxidized to 5-alpha-androstane-3,17-dione and then reduced to epi-andosterone. Can act on both C-19 and C-21 3-alpha-hydroxysteroids.
Gene Name:
HSD17B6
Uniprot ID:
O14756
Molecular weight:
35965.41
Reactions
Estriol + NAD → 16b-Hydroxyestrone + NADH + Hydrogen Iondetails
Estriol + NADP → 16b-Hydroxyestrone + NADPH + Hydrogen Iondetails
General function:
Involved in oxidoreductase activity
Specific function:
Catalyzes the transformation of estrone (E1) into estradiol (E2), suggesting a central role in estrogen formation. Its strong expression in ovary and mammary gland suggest that it may constitute the major enzyme responsible for the conversion of E1 to E2 in women. Also has 3-ketoacyl-CoA reductase activity, reducing both long chain 3-ketoacyl-CoAs and long chain fatty acyl-CoAs, suggesting a role in long fatty acid elongation.
Gene Name:
HSD17B12
Uniprot ID:
Q53GQ0
Molecular weight:
34323.875
Reactions
Estriol + NAD → 16b-Hydroxyestrone + NADH + Hydrogen Iondetails
Estriol + NADP → 16b-Hydroxyestrone + NADPH + Hydrogen Iondetails