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Record Information
Version3.6
Creation Date2005-11-16 15:48:42 UTC
Update Date2013-05-29 19:23:41 UTC
HMDB IDHMDB00010
Secondary Accession Numbers
  • HMDB04990
  • HMDB04991
Metabolite Identification
Common Name2-Methoxyestrone
Description2-methoxyestrone is a steroid derivative that is a byproduct of estrone and 2-hydroxyestrone metabolism. It is part of the androgen and estrogen metabolic pathway. The acid ionization constant (pKa) of 2-methoxyestrone is 10.81 (PMID: 516114 ). 2-Methoxyestrone can be metabolized to a sulfated derivative (2-Methoxyestrone 3-sulfate) via steroid sulfotransferase (EC 2.8.2.15). It can also be glucuronidated to 2-Methoxyestrone 3-glucuronide by UDP glucuronosyltransferase (EC 2.4.1.17).
Structure
Thumb
Synonyms
  1. 2-(8S,9S,13S,14S)-3-Hydroxy-2-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-one
  2. 2-Hydroxyestrone 2-methyl ether
  3. 2-Methoxy-17-oxoestra-1,3,5(10)-trien-3-ol
  4. 2-Methoxy-3-hydroxyestra-1,3,5(10)-trien-17-one
  5. 3-Hydroxy-2-methoxy-Estra-1,3,5(10)-trien-17-one
  6. 3-Hydroxy-2-methoxyestra-1,3,5(10)-trien-17-one
  7. Methoxy-Estrone
Chemical FormulaC19H24O3
Average Molecular Weight300.3921
Monoisotopic Molecular Weight300.172544634
IUPAC Name(1S,10R,11S,15S)-5-hydroxy-4-methoxy-15-methyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-2,4,6-trien-14-one
Traditional IUPAC Name(1S,10R,11S,15S)-5-hydroxy-4-methoxy-15-methyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-2,4,6-trien-14-one
CAS Registry Number362-08-3
SMILES
[H][C@@]12CCC(=O)[C@@]1(C)CC[C@]1([H])C3=C(CC[C@@]21[H])C=C(O)C(OC)=C3
InChI Identifier
InChI=1S/C19H24O3/c1-19-8-7-12-13(15(19)5-6-18(19)21)4-3-11-9-16(20)17(22-2)10-14(11)12/h9-10,12-13,15,20H,3-8H2,1-2H3/t12-,13+,15-,19-/m0/s1
InChI KeyWHEUWNKSCXYKBU-QPWUGHHJSA-N
Chemical Taxonomy
KingdomOrganic Compounds
Super ClassLipids
ClassSteroids and Steroid Derivatives
Sub ClassEstrogens and Derivatives
Other Descriptors
  • 17-oxo steroid(ChEBI)
  • 3-hydroxy steroid(ChEBI)
  • Aromatic Homomonocyclic Compounds
  • Aromatic Homopolycyclic Compounds
  • C18 steroids (estrogens) and derivatives(KEGG)
  • C18 steroids (estrogens) and derivatives(Lipidmaps)
  • Hydroxysteroids
  • Ketosteroids
  • alicyclic ketone(ChEBI)
  • phenols(ChEBI)
Substituents
  • Alkyl Aryl Ether
  • Anisole
  • Cyclohexane
  • Cyclohexene
  • Ketone
  • Methoxyphenol
  • Phenanthrene
  • Phenol
  • Phenol Derivative
  • Sesquiterpene Backbone
  • Tetralin
Direct ParentEstrogens and Derivatives
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
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point187.0 - 189.5 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility0.0075 g/LALOGPS
logP3.5ALOGPS
logP4.15ChemAxon
logS-4.6ALOGPS
pKa (Strongest Acidic)10.29ChemAxon
pKa (Strongest Basic)-4.9ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area46.53ChemAxon
Rotatable Bond Count1ChemAxon
Refractivity85.55ChemAxon
Polarizability34.34ChemAxon
Spectra
SpectraGC-MSMS/MS1D NMR2D NMR
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane
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 Quantified0.005 (0.004-0.006) umol/mmol creatinineAdult (>18 years old)BothNormal details
Abnormal Concentrations
BiofluidStatusValueAgeSexConditionReferenceDetails
UrineDetected and Quantified0.025 (0.02-0.03) umol/mmol creatinineAdult (>18 years old)BothProlactinoma details
Associated Disorders and Diseases
Disease References
Prolactinoma
  1. Lee SH, Nam SY, Chung BC: Altered profile of endogenous steroids in the urine of patients with prolactinoma. Clin Biochem. 1998 Oct;31(7):529-35. Pubmed: 9812172
Associated OMIM IDs
DrugBank IDNot Available
DrugBank Metabolite IDNot Available
Phenol Explorer Compound IDNot Available
Phenol Explorer Metabolite IDNot Available
FoodDB IDFDB021868
KNApSAcK IDNot Available
Chemspider ID389515
KEGG Compound IDC05299
BioCyc IDESTRONE-SULFATE
BiGG IDNot Available
Wikipedia LinkNot Available
NuGOwiki LinkHMDB00010
Metagene LinkHMDB00010
METLIN ID2578
PubChem Compound440624
PDB IDNot Available
ChEBI ID1189
References
Synthesis ReferenceStoelwinder, Johannes; Moers, Nicolaas Elisabeth Cornelis. Process for the preparation 2-substituted derivatives of estrone and estradiol.PCT Int. Appl. (2006), 40 pp.
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Lee SH, Nam SY, Chung BC: Altered profile of endogenous steroids in the urine of patients with prolactinoma. Clin Biochem. 1998 Oct;31(7):529-35. Pubmed: 9812172
  2. Longcope C, Flood C, Femino A, Williams KI: Metabolism of 2-methoxyestrone in normal men. J Clin Endocrinol Metab. 1983 Aug;57(2):277-82. Pubmed: 6863476
  3. Ball P, Reu G, Schwab J, Knuppen R: Radioimmunoassay of 2-hydroxyesterone and 2-methoxyestrone in human urine. Steroids. 1979 May;33(5):563-76. Pubmed: 462497
  4. Lewis KM, Archer RD: pKa values of estrone, 17 beta-estradiol and 2-methoxyestrone. Steroids. 1979 Nov;34(5):485-99. Pubmed: 516114
  5. S. Kraychy, T. F. Gallagher. 2-Methoxyestrone, A Metabolite of Estradiol-17β in the Human. J. Am. Chem. Soc., 1957, 79 (3), pp 754–754
  6. Miyazaki M, Fishman J. Isomeric aryl monsulfates of estrogen catechols. J Org Chem. 1968 Feb;33(2):662-4
  7. Shimada, K. et al., J. Chromatogr., 1979, 178, 350, (HPLC)
  8. Gelbke, H.P. et al., Steroids, 1973, 21, 205, (synthesis, PMR)
  9. Douglas GH, Walk CR, Smith H. Totally synthetic steroid hormones. V. (+ -)-2,3-Dimethoxyestra-1,3,5(10)-trien-17-beta-ol and some congeners. J Med Chem. 1966 Jan;9(1):27-9.

Enzymes

General function:
Involved in magnesium ion binding
Specific function:
Catalyzes the O-methylation, and thereby the inactivation, of catecholamine neurotransmitters and catechol hormones. Also shortens the biological half-lives of certain neuroactive drugs, like L-DOPA, alpha-methyl DOPA and isoproterenol.
Gene Name:
COMT
Uniprot ID:
P21964
Molecular weight:
30036.77
Reactions
2-Hydroxyestrone + S-Adenosylmethionine → 2-Methoxyestrone + S-Adenosylhomocysteinedetails
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGTs are of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isozyme has glucuronidating capacity with steroid substrates such as 5-beta-androstane 3-alpha,17-beta-diol, estradiol, ADT, eugenol and bile acids. Only isoform 1 seems to be active.
Gene Name:
UGT2B28
Uniprot ID:
Q9BY64
Molecular weight:
38742.9
Reactions
2-Methoxyestrone + Uridine diphosphate glucuronic acid → 2-Methoxyestrone 3-glucuronide + Uridine 5'-diphosphatedetails
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGTs are of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isozyme is active on polyhydroxylated estrogens (such as estriol, 4-hydroxyestrone and 2-hydroxyestriol) and xenobiotics (such as 4-methylumbelliferone, 1-naphthol, 4-nitrophenol, 2-aminophenol, 4-hydroxybiphenyl and menthol). It is capable of 6 alpha-hydroxyglucuronidation of hyodeoxycholic acid.
Gene Name:
UGT2B4
Uniprot ID:
P06133
Molecular weight:
60512.035
Reactions
2-Methoxyestrone + Uridine diphosphate glucuronic acid → 2-Methoxyestrone 3-glucuronide + Uridine 5'-diphosphatedetails
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isoform glucuronidates bilirubin IX-alpha to form both the IX-alpha-C8 and IX-alpha-C12 monoconjugates and diconjugate.
Gene Name:
UGT1A4
Uniprot ID:
P22310
Molecular weight:
60024.535
Reactions
2-Methoxyestrone + Uridine diphosphate glucuronic acid → 2-Methoxyestrone 3-glucuronide + Uridine 5'-diphosphatedetails
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds.
Gene Name:
UGT2B10
Uniprot ID:
P36537
Molecular weight:
60773.485
Reactions
2-Methoxyestrone + Uridine diphosphate glucuronic acid → 2-Methoxyestrone 3-glucuronide + Uridine 5'-diphosphatedetails
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. Its unique specificity for 3,4-catechol estrogens and estriol suggests it may play an important role in regulating the level and activity of these potent and active estrogen metabolites. Is also active with androsterone, hyodeoxycholic acid and tetrachlorocatechol (in vitro).
Gene Name:
UGT2B7
Uniprot ID:
P16662
Molecular weight:
60720.15
Reactions
2-Methoxyestrone + Uridine diphosphate glucuronic acid → 2-Methoxyestrone 3-glucuronide + Uridine 5'-diphosphatedetails
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGTs are of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isozyme displays activity toward several classes of xenobiotic substrates, including simple phenolic compounds, 7-hydroxylated coumarins, flavonoids, anthraquinones, and certain drugs and their hydroxylated metabolites. It also catalyzes the glucuronidation of endogenous estrogens and androgens.
Gene Name:
UGT2B15
Uniprot ID:
P54855
Molecular weight:
61035.815
Reactions
2-Methoxyestrone + Uridine diphosphate glucuronic acid → 2-Methoxyestrone 3-glucuronide + Uridine 5'-diphosphatedetails
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDP-glucuronosyltransferases catalyze phase II biotransformation reactions in which lipophilic substrates are conjugated with glucuronic acid to increase water solubility and enhance excretion. They are of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. Active on odorants and seems to be involved in olfaction; it could help clear lipophilic odorant molecules from the sensory epithelium.
Gene Name:
UGT2A1
Uniprot ID:
Q9Y4X1
Molecular weight:
60771.605
Reactions
2-Methoxyestrone + Uridine diphosphate glucuronic acid → 2-Methoxyestrone 3-glucuronide + Uridine 5'-diphosphatedetails
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isoform glucuronidates bilirubin IX-alpha to form both the IX-alpha-C8 and IX-alpha-C12 monoconjugates and diconjugate. Is also able to catalyze the glucuronidation of 17beta-estradiol, 17alpha-ethinylestradiol, 1-hydroxypyrene, 4-methylumbelliferone, 1-naphthol, paranitrophenol, scopoletin, and umbelliferone.
Gene Name:
UGT1A1
Uniprot ID:
P22309
Molecular weight:
59590.91
Reactions
2-Methoxyestrone + Uridine diphosphate glucuronic acid → 2-Methoxyestrone 3-glucuronide + Uridine 5'-diphosphatedetails
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isoform has specificity for phenols.
Gene Name:
UGT1A9
Uniprot ID:
O60656
Molecular weight:
59940.495
Reactions
2-Methoxyestrone + Uridine diphosphate glucuronic acid → 2-Methoxyestrone 3-glucuronide + Uridine 5'-diphosphatedetails
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds.
Gene Name:
UGT1A8
Uniprot ID:
Q9HAW9
Molecular weight:
59741.035
Reactions
2-Methoxyestrone + Uridine diphosphate glucuronic acid → 2-Methoxyestrone 3-glucuronide + Uridine 5'-diphosphatedetails
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds.
Gene Name:
UGT1A3
Uniprot ID:
P35503
Molecular weight:
60337.835
Reactions
2-Methoxyestrone + Uridine diphosphate glucuronic acid → 2-Methoxyestrone 3-glucuronide + Uridine 5'-diphosphatedetails
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds.
Gene Name:
UGT1A10
Uniprot ID:
Q9HAW8
Molecular weight:
59809.075
Reactions
2-Methoxyestrone + Uridine diphosphate glucuronic acid → 2-Methoxyestrone 3-glucuronide + Uridine 5'-diphosphatedetails
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. The major substrates of this isozyme are eugenol > 4-methylumbelliferone > dihydrotestosterone (DHT) > androstane-3-alpha,17-beta-diol (3-alpha-diol) > testosterone > androsterone (ADT).
Gene Name:
UGT2B17
Uniprot ID:
O75795
Molecular weight:
61094.915
Reactions
2-Methoxyestrone + Uridine diphosphate glucuronic acid → 2-Methoxyestrone 3-glucuronide + Uridine 5'-diphosphatedetails
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isoform has specificity for phenols.
Gene Name:
UGT1A6
Uniprot ID:
P19224
Molecular weight:
60750.215
Reactions
2-Methoxyestrone + Uridine diphosphate glucuronic acid → 2-Methoxyestrone 3-glucuronide + Uridine 5'-diphosphatedetails
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds.
Gene Name:
UGT1A5
Uniprot ID:
P35504
Molecular weight:
60070.565
Reactions
2-Methoxyestrone + Uridine diphosphate glucuronic acid → 2-Methoxyestrone 3-glucuronide + Uridine 5'-diphosphatedetails
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds.
Gene Name:
UGT2B11
Uniprot ID:
O75310
Molecular weight:
61037.8
Reactions
2-Methoxyestrone + Uridine diphosphate glucuronic acid → 2-Methoxyestrone 3-glucuronide + Uridine 5'-diphosphatedetails
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds.
Gene Name:
UGT1A7
Uniprot ID:
Q9HAW7
Molecular weight:
59818.315
Reactions
2-Methoxyestrone + Uridine diphosphate glucuronic acid → 2-Methoxyestrone 3-glucuronide + Uridine 5'-diphosphatedetails
General function:
Involved in androgen binding
Specific function:
Functions as an androgen transport protein, but may also be involved in receptor mediated processes. Each dimer binds one molecule of steroid. Specific for 5-alpha-dihydrotestosterone, testosterone, and 17-beta-estradiol. Regulates the plasma metabolic clearance rate of steroid hormones by controlling their plasma concentration
Gene Name:
SHBG
Uniprot ID:
P04278
Molecular weight:
43778.8
References
  1. Philip A, Murphy BE: Relative binding of certain steroids of low polarity to human sex hormone-binding globulin: strong binding of 2-methoxyestrone, a steroid lacking the 17 beta-OH group. Steroids. 1986 Jun;47(6):373-9. Pubmed: 3617115
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDP-glucuronosyltransferases catalyze phase II biotransformation reactions in which lipophilic substrates are conjugated with glucuronic acid to increase water solubility and enhance excretion. They are of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds (By similarity).
Gene Name:
UGT2A3
Uniprot ID:
Q6UWM9
Molecular weight:
60253.94
Reactions
2-Methoxyestrone + Uridine diphosphate glucuronic acid → 2-Methoxyestrone 3-glucuronide + Uridine 5'-diphosphatedetails
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
Not Available
Gene Name:
UGT1A10
Uniprot ID:
Q5DT02
Molecular weight:
59809.1
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
Not Available
Gene Name:
UGT1A8
Uniprot ID:
Q5DSZ6
Molecular weight:
59741.0
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
Not Available
Gene Name:
UGT1A7
Uniprot ID:
Q5DSZ7
Molecular weight:
59818.3