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Record Information
Version3.6
Creation Date2005-11-16 15:48:42 UTC
Update Date2015-03-09 22:57:05 UTC
HMDB IDHMDB00352
Secondary Accession NumbersNone
Metabolite Identification
Common Name16a-Hydroxydehydroisoandrosterone
Description16a-Hydroxydehydroisoandrosterone is a metabolite present during pregnancy with increased concentrations as it progresses (PMID 6461703 ). A reduced level of 16a-Hydroxydehydroisoandrosterone is observed in cases of Placental sulfatase deficiency (PSD), a rare disorder with low estrogen production due to placental enzymatic deficiency. (PMID 2150812 ).
Structure
Thumb
Synonyms
  1. 16 alpha-Hydroxy-dehydroepiandrosterone
  2. 16-Hydroxydehydroandrosterone
  3. 16-Hydroxydehydroepiandrosterone
  4. 16a-Hydroxy-DHEA
  5. 16a-Hydroxydehydroandrosterone
  6. 16a-Hydroxydehydroepiandrosterone
  7. 16a-Hydroxydehydroisoandrosterone
  8. 3b,16a-Dihydroxy-Androst-5-en-17-one
  9. 3b,16a-Dihydroxyandrost-5-en-17-one
  10. Androst-5-ene-3b-16a-diol-17-one
Chemical FormulaC19H28O3
Average Molecular Weight304.4238
Monoisotopic Molecular Weight304.203844762
IUPAC Name(1S,2R,5S,10R,11S,13R,15S)-5,13-dihydroxy-2,15-dimethyltetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-7-en-14-one
Traditional Name16a-Hydroxy-DHEA
CAS Registry Number1232-73-1
SMILES
[H][C@@]12C[C@@H](O)C(=O)[C@@]1(C)CC[C@@]1([H])[C@@]2([H])CC=C2C[C@@H](O)CC[C@]12C
InChI Identifier
InChI=1S/C19H28O3/c1-18-7-5-12(20)9-11(18)3-4-13-14(18)6-8-19(2)15(13)10-16(21)17(19)22/h3,12-16,20-21H,4-10H2,1-2H3/t12-,13+,14-,15-,16+,18-,19-/m0/s1
InChI KeyQQIVKFZWLZJXJT-DNKQKWOHSA-N
Chemical Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as androgens and derivatives. These are 3-hydroxylated C19 steroid hormones. They are known to favor the development of masculine characteristics. They also show profound effects on scalp and body hair in humans.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
Sub ClassAndrostane steroids
Direct ParentAndrogens and derivatives
Alternative Parents
Substituents
  • Androgen-skeleton
  • 3-beta-hydroxysteroid
  • 16-hydroxysteroid
  • 16-alpha-hydroxysteroid
  • 3-beta-hydroxy-delta-5-steroid
  • Oxosteroid
  • 17-oxosteroid
  • Hydroxysteroid
  • 3-hydroxysteroid
  • 3-hydroxy-delta-5-steroid
  • Delta-5-steroid
  • Cyclic alcohol
  • Secondary alcohol
  • Ketone
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Alcohol
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic compounds
External Descriptors
Ontology
StatusDetected and 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)
  • Endoplasmic reticulum
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 Solubility0.12 mg/mLALOGPS
logP2.42ALOGPS
logP2.49ChemAxon
logS-3.4ALOGPS
pKa (Strongest Acidic)13.38ChemAxon
pKa (Strongest Basic)-1.4ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area57.53 Å2ChemAxon
Rotatable Bond Count0ChemAxon
Refractivity86.15 m3·mol-1ChemAxon
Polarizability34.85 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)
  • Endoplasmic reticulum
Biofluid Locations
  • Blood
  • Urine
Tissue LocationNot Available
PathwaysNot Available
Normal Concentrations
BiofluidStatusValueAgeSexConditionReferenceDetails
BloodExpected but not QuantifiedNot ApplicableNot AvailableNot Available
Normal
  • Not Applicable
details
UrineDetected and Quantified0.35 +/- 0.24 umol/mmol creatinineAdult (>18 years old)FemaleNormal details
Abnormal Concentrations
BiofluidStatusValueAgeSexConditionReferenceDetails
UrineDetected and Quantified0.35 +/- 0.21 umol/mmol creatinineAdult (>18 years old)FemaleThyroid cancer details
Associated Disorders and Diseases
Disease References
Thyroid cancer
  1. Kim KM, Jung BH, Lho DS, Chung WY, Paeng KJ, Chung BC: Alteration of urinary profiles of endogenous steroids and polyunsaturated fatty acids in thyroid cancer. Cancer Lett. 2003 Dec 30;202(2):173-9. [14643447 ]
Associated OMIM IDsNone
DrugBank IDNot Available
DrugBank Metabolite IDNot Available
Phenol Explorer Compound IDNot Available
Phenol Explorer Metabolite IDNot Available
FoodDB IDFDB021975
KNApSAcK IDNot Available
Chemspider ID92168
KEGG Compound IDC05139
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
NuGOwiki LinkHMDB00352
Metagene LinkHMDB00352
METLIN ID5341
PubChem Compound102030
PDB IDNot Available
ChEBI ID27771
References
Synthesis ReferenceSiiter, Pentti K.; MacDonald, Paul C. Placental estrogen biosynthesis during human pregnancy. Journal of Clinical Endocrinology and Metabolism (1966), 26(7), 751-61.
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Gothoda Y, Hirato K, Yanaihara T, Nakayama T, Kanbegawa A: [A study of 16 alpha OH-DHA and 16 alpha OH-pregnenolone in feto-placental unit (author's transl)]. Nihon Sanka Fujinka Gakkai Zasshi. 1982 Mar;34(3):325-34. [6461703 ]
  2. Hirato K, Yanaihara T: Serum steroid hormone levels in neonates born from the mother with placental sulfatase deficiency. Endocrinol Jpn. 1990 Oct;37(5):731-9. [2150812 ]

Enzymes

General function:
Involved in 3-beta-hydroxy-delta5-steroid dehydrogenase activity
Specific function:
3-beta-HSD is a bifunctional enzyme, that catalyzes the oxidative conversion of Delta(5)-ene-3-beta-hydroxy steroid, and the oxidative conversion of ketosteroids. The 3-beta-HSD enzymatic system plays a crucial role in the biosynthesis of all classes of hormonal steroids. Efficiently catalyzes the transformation of pregnenolone to progesterone, 17-alpha-hydroxypregnenolone to 17-alpha-hydroxyprogesterone, DHEA to 4-androstenedione, dihydrotestosterone to 5-alpha-androstane-3 beta,17 beta-diol, dehydroepiandrosterone to androstenedione and 5-alpha-androstan-3 beta,17 beta-diol to 5-alpha-dihydrotestosterone.
Gene Name:
HSD3B1
Uniprot ID:
P14060
Molecular weight:
42251.25
Reactions
16a-Hydroxyandrost-4-ene-3,17-dione + Hydrogen Ion + NADH → 16a-Hydroxydehydroisoandrosterone + NADdetails
General function:
Involved in 3-beta-hydroxy-delta5-steroid dehydrogenase activity
Specific function:
3-beta-HSD is a bifunctional enzyme, that catalyzes the oxidative conversion of Delta(5)-ene-3-beta-hydroxy steroid, and the oxidative conversion of ketosteroids. The 3-beta-HSD enzymatic system plays a crucial role in the biosynthesis of all classes of hormonal steroids.
Gene Name:
HSD3B2
Uniprot ID:
P26439
Molecular weight:
42051.845
Reactions
16a-Hydroxyandrost-4-ene-3,17-dione + Hydrogen Ion + NADH → 16a-Hydroxydehydroisoandrosterone + NADdetails