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Record Information
Version5.0
StatusDetected and Quantified
Creation Date2006-05-22 15:12:30 UTC
Update Date2022-03-07 02:49:17 UTC
HMDB IDHMDB0003069
Secondary Accession Numbers
  • HMDB03069
Metabolite Identification
Common Name20alpha-Dihydroprogesterone
Description20alpha-Dihydroprogesterone is a biologically active 20-alpha-reduced metabolite of progesterone. It is converted from progesterone to 20-alpha-hydroxypregn-4-en-3-one by the 20-alpha-hydroxysteroid dehydrogenase in the corpus luteum and the placenta. Progesterone is a C-21 steroid hormone involved in the female menstrual cycle, pregnancy (supports gestation), and embryogenesis of humans and other species. Progesterone belongs to a class of hormones called progestagens, and is the major naturally occurring human progestagen (Wikipedia ). During implantation and gestation, progesterone appears to decrease the maternal immune response to allow for the acceptance of the pregnancy. Progesterone decreases contractility of the uterine smooth muscle. The fetus metabolizes placental progesterone in the production of adrenal mineralo- and glucosteroids. A drop in progesterone levels is possibly one step that facilitates the onset of labour. In addition, progesterone inhibits lactation during pregnancy. The fall in progesterone levels following delivery is one of the triggers for milk production (Wikipedia ).
Structure
Data?1588958753
Synonyms
Chemical FormulaC21H32O2
Average Molecular Weight316.4776
Monoisotopic Molecular Weight316.240230268
IUPAC Name(1S,2R,10S,11S,14S,15S)-14-[(1S)-1-hydroxyethyl]-2,15-dimethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-6-en-5-one
Traditional Name(1S,2R,10S,11S,14S,15S)-14-[(1S)-1-hydroxyethyl]-2,15-dimethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-6-en-5-one
CAS Registry Number145-14-2
SMILES
[H][C@@]1(CC[C@@]2([H])[C@]3([H])CCC4=CC(=O)CC[C@]4(C)[C@@]3([H])CC[C@]12C)[C@H](C)O
InChI Identifier
InChI=1S/C21H32O2/c1-13(22)17-6-7-18-16-5-4-14-12-15(23)8-10-20(14,2)19(16)9-11-21(17,18)3/h12-13,16-19,22H,4-11H2,1-3H3/t13-,16-,17+,18-,19-,20-,21+/m0/s1
InChI KeyRWBRUCCWZPSBFC-RXRZZTMXSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as gluco/mineralocorticoids, progestogins and derivatives. These are steroids with a structure based on a hydroxylated prostane moiety.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
Sub ClassPregnane steroids
Direct ParentGluco/mineralocorticoids, progestogins and derivatives
Alternative Parents
Substituents
  • Progestogin-skeleton
  • 20-hydroxysteroid
  • 3-oxo-delta-4-steroid
  • 3-oxosteroid
  • Oxosteroid
  • Hydroxysteroid
  • Delta-4-steroid
  • Cyclohexenone
  • 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
  • 20-hydroxypregn-4-en-3-one (CHEBI:28453 )
  • C21 steroids (gluco/mineralocorticoids, progestogins) and derivatives (LMST02030169 )
Ontology
Physiological effect
Disposition
Biological locationRoute of exposureSource
Process
Role
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting Point126 - 131 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
Predicted Chromatographic Properties
Spectra
Biological Properties
Cellular Locations
  • Cytoplasm
  • Extracellular
  • Membrane (predicted from logP)
Biospecimen Locations
  • Blood
Tissue Locations
  • Placenta
  • Testis
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Female
Normal
details
BloodDetected and Quantified0.0199 (0.0190-0.0208) uMAdult (>18 years old)Female
Normal
details
BloodDetected and Quantified0.0164 (0.0126 - 0.0199) uMAdult (>18 years old)Female
Normal
details
BloodDetected and Quantified0.0731 (0.0199 -0.1263) uMAdult (>18 years old)Female
Normal
details
BloodDetected and Quantified0.0070 (0.0008 - 0.0117) uMAdult (>18 years old)FemaleNormal details
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Female
Schizophrenia
details
Associated Disorders and Diseases
Disease References
Schizophrenia
  1. Bicikova M, Hill M, Ripova D, Mohr P, Hampl R: Determination of steroid metabolome as a possible tool for laboratory diagnosis of schizophrenia. J Steroid Biochem Mol Biol. 2013 Jan;133:77-83. doi: 10.1016/j.jsbmb.2012.08.009. Epub 2012 Aug 24. [PubMed:22944140 ]
Associated OMIM IDs
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB023103
KNApSAcK IDNot Available
Chemspider ID8612
KEGG Compound IDC04042
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia Link20α-Dihydroprogesterone
METLIN IDNot Available
PubChem Compound8956
PDB IDNot Available
ChEBI ID28453
Food Biomarker OntologyNot Available
VMH IDAPRGSTRN
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceSanai Y; Suzuki T; Yanaihara T; Nakayama T 20 alpha-Dihydropregnenolone-sulfate and 20 alpha-dihydroprogesterone biosynthesis and metabolism in feto-placental unit. Nippon Sanka Fujinka Gakkai zasshi (1984), 36(2), 195-201.
Material Safety Data Sheet (MSDS)Not Available
General References

Enzymes

General function:
Involved in oxidoreductase activity
Specific function:
Converts progesterone to its inactive form, 20-alpha-dihydroxyprogesterone (20-alpha-OHP). In the liver and intestine, may have a role in the transport of bile. May have a role in monitoring the intrahepatic bile acid concentration. Has a low bile-binding ability. May play a role in myelin formation.
Gene Name:
AKR1C1
Uniprot ID:
Q04828
Molecular weight:
36788.02