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Record Information
Version3.6
Creation Date2012-09-06 15:16:51 UTC
Update Date2016-02-11 01:31:20 UTC
HMDB IDHMDB15064
Secondary Accession NumbersNone
Metabolite Identification
Common NameMisoprostol
DescriptionMisoprostol is only found in individuals that have used or taken this drug. It is a synthetic analog of natural prostaglandin E1. It produces a dose-related inhibition of gastric acid and pepsin secretion, and enhances mucosal resistance to injury. It is an effective anti-ulcer agent and also has oxytocic properties. [PubChem]Misoprostol seems to inhibit gastric acid secretion by a direct action on the parietal cells through binding to the prostaglandin receptor. The activity of this receptor is mediated by G proteins which normally activate adenylate cyclase. The indirect inhibition of adenylate cyclase by Misoprostol may be dependent on guanosine-5’-triphosphate (GTP). The significant cytoprotective actions of misoprostol are related to several mechanisms. These include: 1. Increased secretion of bicarbonate, 2. Considerable decrease in the volume and pepsin content of the gastric secretions, 3. It prevents harmful agents from disrupting the tight junctions between the epithelial cells which stops the subsequent back diffusion of H+ ions into the gastric mucosa, 4. Increased thickness of mucus layer, 5. Enhanced mucosal blood flow as a result of direct vasodilatation, 6. Stabilization of tissue lysozymes/vascular endothelium, 7. Improvement of mucosal regeneration capacity, and 8. Replacement of prostaglandins that have been depleted as a result of various insults to the area. Misoprostol has also been shown to increase the amplitude and frequency of uterine contractions during pregnancy via selective binding to the EP-2/EP-3 prostanoid receptors.
Structure
Thumb
Synonyms
ValueSource
CytotecKegg
Chemical FormulaC22H38O5
Average Molecular Weight382.5341
Monoisotopic Molecular Weight382.271924326
IUPAC Namemethyl 7-[(1R,2R,3R)-3-hydroxy-2-[(1E)-4-hydroxy-4-methyloct-1-en-1-yl]-5-oxocyclopentyl]heptanoate
Traditional Namemisoprostol
CAS Registry Number59122-46-2
SMILES
CCCCC(C)(O)C\C=C\[C@H]1[C@H](O)CC(=O)[C@@H]1CCCCCCC(=O)OC
InChI Identifier
InChI=1S/C22H38O5/c1-4-5-14-22(2,26)15-10-12-18-17(19(23)16-20(18)24)11-8-6-7-9-13-21(25)27-3/h10,12,17-18,20,24,26H,4-9,11,13-16H2,1-3H3/b12-10+/t17-,18-,20-,22?/m1/s1
InChI KeyInChIKey=OJLOPKGSLYJEMD-URPKTTJQSA-N
Chemical Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as prostaglandins and related compounds. These are unsaturated carboxylic acids consisting of a 20 carbon skeleton that also contains a five member ring, and are based upon the fatty acid arachidonic acid.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassFatty Acyls
Sub ClassEicosanoids
Direct ParentProstaglandins and related compounds
Alternative Parents
Substituents
  • Prostaglandin skeleton
  • Fatty acid methyl ester
  • Fatty acid ester
  • Cyclopentanol
  • Methyl ester
  • Tertiary alcohol
  • Cyclic alcohol
  • Cyclic ketone
  • Secondary alcohol
  • Ketone
  • Carboxylic acid ester
  • Monocarboxylic acid or derivatives
  • Carboxylic acid derivative
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Alcohol
  • Aliphatic homomonocyclic compound
Molecular FrameworkAliphatic homomonocyclic compounds
External DescriptorsNot Available
Ontology
StatusExpected but not Quantified
Origin
  • Drug
Biofunction
  • Abortifacient Agents
  • Abortifacient Agents, Nonsteroidal
  • Anti-Ulcer Agents
  • Cell signaling
  • Fuel and energy storage
  • Fuel or energy source
  • Membrane integrity/stability
  • Oxytocics
  • Prostaglandins
Application
  • Nutrients
  • Pharmaceutical
  • Stabilizers
  • Surfactants and Emulsifiers
Cellular locations
  • Extracellular
  • Membrane
Physical Properties
StateLiquid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water Solubility1.64e-02 g/LNot Available
LogP3.6Not Available
Predicted Properties
PropertyValueSource
Water Solubility0.016 mg/mLALOGPS
logP3.88ALOGPS
logP3.86ChemAxon
logS-4.4ALOGPS
pKa (Strongest Acidic)14.68ChemAxon
pKa (Strongest Basic)-0.95ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area83.83 Å2ChemAxon
Rotatable Bond Count14ChemAxon
Refractivity107.88 m3·mol-1ChemAxon
Polarizability45.38 Å3ChemAxon
Number of Rings1ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, NegativeNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, NegativeNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, NegativeNot Available
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane
Biofluid Locations
  • Blood
  • Urine
Tissue LocationNot Available
PathwaysNot Available
Normal Concentrations
BiofluidStatusValueAgeSexConditionReferenceDetails
BloodExpected but not QuantifiedNot ApplicableNot AvailableNot AvailableTaking drug identified by DrugBank entry DB00929
  • Not Applicable
details
UrineExpected but not QuantifiedNot ApplicableNot AvailableNot AvailableTaking drug identified by DrugBank entry DB00929
  • Not Applicable
details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDDB00929
DrugBank Metabolite IDNot Available
Phenol Explorer Compound IDNot Available
Phenol Explorer Metabolite IDNot Available
FoodDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID4445541
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkMisoprostol
NuGOwiki LinkHMDB15064
Metagene LinkHMDB15064
METLIN IDNot Available
PubChem Compound5282381
PDB IDNot Available
ChEBI ID122391
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Rocha J: Brazil investigates drug's possible link with birth defects. BMJ. 1994 Sep 24;309(6957):757-8. [7950553 ]
  2. Costa SH, Vessey MP: Misoprostol and illegal abortion in Rio de Janeiro, Brazil. Lancet. 1993 May 15;341(8855):1258-61. [8098402 ]
  3. Coelho HL, Teixeira AC, Cruz Mde F, Gonzaga SL, Arrais PS, Luchini L, La Vecchia C, Tognoni G: Misoprostol: the experience of women in Fortaleza, Brazil. Contraception. 1994 Feb;49(2):101-10. [8143449 ]
  4. Barbosa RM, Arilha M: The Brazilian experience with Cytotec. Stud Fam Plann. 1993 Jul-Aug;24(4):236-40. [8212093 ]
  5. Gonzalez CH, Vargas FR, Perez AB, Kim CA, Brunoni D, Marques-Dias MJ, Leone CR, Correa Neto J, Llerena Junior JC, de Almeida JC: Limb deficiency with or without Mobius sequence in seven Brazilian children associated with misoprostol use in the first trimester of pregnancy. Am J Med Genet. 1993 Aug 1;47(1):59-64. [8368254 ]

Enzymes

General function:
Involved in G-protein coupled receptor protein signaling pathway
Specific function:
Receptor for prostaglandin E2 (PGE2). The activity of this receptor is mediated by G(s) proteins that stimulate adenylate cyclase. Has a relaxing effect on smooth muscle. May play an important role in regulating renal hemodynamics, intestinal epithelial transport, adrenal aldosterone secretion, and uterine function
Gene Name:
PTGER4
Uniprot ID:
P35408
Molecular weight:
53118.8
References
  1. Nakae K, Hayashi F, Hayashi M, Yamamoto N, Iino T, Yoshikawa S, Gupta J: Functional role of prostacyclin receptor in rat dorsal root ganglion neurons. Neurosci Lett. 2005 Nov 18;388(3):132-7. [16039053 ]
  2. Li J, Liang X, Wang Q, Breyer RM, McCullough L, Andreasson K: Misoprostol, an anti-ulcer agent and PGE2 receptor agonist, protects against cerebral ischemia. Neurosci Lett. 2008 Jun 20;438(2):210-5. Epub 2008 Apr 20. [18472336 ]
  3. Guan Y, Stillman BA, Zhang Y, Schneider A, Saito O, Davis LS, Redha R, Breyer RM, Breyer MD: Cloning and expression of the rabbit prostaglandin EP2 receptor. BMC Pharmacol. 2002 Jun 27;2:14. [12097143 ]
  4. Kiriyama M, Ushikubi F, Kobayashi T, Hirata M, Sugimoto Y, Narumiya S: Ligand binding specificities of the eight types and subtypes of the mouse prostanoid receptors expressed in Chinese hamster ovary cells. Br J Pharmacol. 1997 Sep;122(2):217-24. [9313928 ]
  5. Nataraj C, Thomas DW, Tilley SL, Nguyen MT, Mannon R, Koller BH, Coffman TM: Receptors for prostaglandin E(2) that regulate cellular immune responses in the mouse. J Clin Invest. 2001 Oct;108(8):1229-35. [11602631 ]
  6. Crider JY, Xu SX, Sharif NA: Pharmacology of functional endogenous IP prostanoid receptors in NCB-20 cells: comparison with binding data from human platelets. Prostaglandins Leukot Essent Fatty Acids. 2001 Nov-Dec;65(5-6):253-8. [11993717 ]
General function:
Involved in G-protein coupled receptor protein signaling pathway
Specific function:
Receptor for prostaglandin E2 (PGE2); the EP3 receptor may be involved in inhibition of gastric acid secretion, modulation of neurotransmitter release in central and peripheral neurons, inhibition of sodium and water reabsorption in kidney tubulus and contraction in uterine smooth muscle. The activity of this receptor can couple to both the inhibition of adenylate cyclase mediated by G-I proteins, and to an elevation of intracellular calcium. The various isoforms have identical ligand binding properties but can interact with different second messenger systems
Gene Name:
PTGER3
Uniprot ID:
P43115
Molecular weight:
43309.3
References
  1. Nakae K, Hayashi F, Hayashi M, Yamamoto N, Iino T, Yoshikawa S, Gupta J: Functional role of prostacyclin receptor in rat dorsal root ganglion neurons. Neurosci Lett. 2005 Nov 18;388(3):132-7. [16039053 ]
  2. Li J, Liang X, Wang Q, Breyer RM, McCullough L, Andreasson K: Misoprostol, an anti-ulcer agent and PGE2 receptor agonist, protects against cerebral ischemia. Neurosci Lett. 2008 Jun 20;438(2):210-5. Epub 2008 Apr 20. [18472336 ]
  3. Guan Y, Stillman BA, Zhang Y, Schneider A, Saito O, Davis LS, Redha R, Breyer RM, Breyer MD: Cloning and expression of the rabbit prostaglandin EP2 receptor. BMC Pharmacol. 2002 Jun 27;2:14. [12097143 ]
  4. Kiriyama M, Ushikubi F, Kobayashi T, Hirata M, Sugimoto Y, Narumiya S: Ligand binding specificities of the eight types and subtypes of the mouse prostanoid receptors expressed in Chinese hamster ovary cells. Br J Pharmacol. 1997 Sep;122(2):217-24. [9313928 ]
  5. Nataraj C, Thomas DW, Tilley SL, Nguyen MT, Mannon R, Koller BH, Coffman TM: Receptors for prostaglandin E(2) that regulate cellular immune responses in the mouse. J Clin Invest. 2001 Oct;108(8):1229-35. [11602631 ]
General function:
Involved in G-protein coupled receptor protein signaling pathway
Specific function:
Receptor for prostaglandin E2 (PGE2). The activity of this receptor is mediated by G(s) proteins that stimulate adenylate cyclase. The subsequent raise in intracellular cAMP is responsible for the relaxing effect of this receptor on smooth muscle
Gene Name:
PTGER2
Uniprot ID:
P43116
Molecular weight:
39759.9
References
  1. Nakae K, Hayashi F, Hayashi M, Yamamoto N, Iino T, Yoshikawa S, Gupta J: Functional role of prostacyclin receptor in rat dorsal root ganglion neurons. Neurosci Lett. 2005 Nov 18;388(3):132-7. [16039053 ]
  2. Li J, Liang X, Wang Q, Breyer RM, McCullough L, Andreasson K: Misoprostol, an anti-ulcer agent and PGE2 receptor agonist, protects against cerebral ischemia. Neurosci Lett. 2008 Jun 20;438(2):210-5. Epub 2008 Apr 20. [18472336 ]
  3. Guan Y, Stillman BA, Zhang Y, Schneider A, Saito O, Davis LS, Redha R, Breyer RM, Breyer MD: Cloning and expression of the rabbit prostaglandin EP2 receptor. BMC Pharmacol. 2002 Jun 27;2:14. [12097143 ]
  4. Kiriyama M, Ushikubi F, Kobayashi T, Hirata M, Sugimoto Y, Narumiya S: Ligand binding specificities of the eight types and subtypes of the mouse prostanoid receptors expressed in Chinese hamster ovary cells. Br J Pharmacol. 1997 Sep;122(2):217-24. [9313928 ]
  5. Nataraj C, Thomas DW, Tilley SL, Nguyen MT, Mannon R, Koller BH, Coffman TM: Receptors for prostaglandin E(2) that regulate cellular immune responses in the mouse. J Clin Invest. 2001 Oct;108(8):1229-35. [11602631 ]