Hmdb loader
Show more...Show more...Show more...Show more...Show more...Show more...
Record Information
Version5.0
StatusDetected and Quantified
Creation Date2005-11-16 15:48:42 UTC
Update Date2022-03-07 02:49:10 UTC
HMDB IDHMDB0001452
Secondary Accession Numbers
  • HMDB01452
Metabolite Identification
Common NameThromboxane A2
DescriptionThromboxane A2 is an unstable intermediate between the prostaglandin endoperoxides and thromboxane B2. The compound has a bicyclic oxaneoxetane structure. It is a potent inducer of platelet aggregation and causes vasoconstriction. It is the principal component of rabbit aorta contracting substance (RCS).Thromboxanes are eicosanoids. The eicosanoids consist of the prostaglandins (PGs), thromboxanes (TXs), leukotrienes (LTs), and lipoxins (LXs). The PGs and TXs are collectively identified as prostanoids. Prostaglandins were originally shown to be synthesized in the prostate gland, thromboxanes from platelets (thrombocytes), and leukotrienes from leukocytes, hence the derivation of their names. All mammalian cells except erythrocytes synthesize eicosanoids. These molecules are extremely potent, able to cause profound physiological effects at very dilute concentrations. All eicosanoids function locally at the site of synthesis, through receptor-mediated G-protein linked signalling pathways.
Structure
Thumb
Synonyms
Chemical FormulaC20H32O5
Average Molecular Weight352.4651
Monoisotopic Molecular Weight352.224974134
IUPAC Name(5Z)-7-[(1S,3R,4S,5S)-3-[(1E,3S)-3-hydroxyoct-1-en-1-yl]-2,6-dioxabicyclo[3.1.1]heptan-4-yl]hept-5-enoic acid
Traditional Namethromboxane
CAS Registry Number57576-52-0
SMILES
CCCCC[C@H](O)\C=C\[C@H]1O[C@H]2C[C@H](O2)[C@@H]1C\C=C/CCCC(O)=O
InChI Identifier
InChI=1S/C20H32O5/c1-2-3-6-9-15(21)12-13-17-16(18-14-20(24-17)25-18)10-7-4-5-8-11-19(22)23/h4,7,12-13,15-18,20-21H,2-3,5-6,8-11,14H2,1H3,(H,22,23)/b7-4-,13-12+/t15-,16+,17+,18-,20+/m0/s1
InChI KeyDSNBHJFQCNUKMA-SCKDECHMSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as thromboxanes. These are eicosanoids structurally characterized by the presence of a 6-member ether containing ring.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassFatty Acyls
Sub ClassEicosanoids
Direct ParentThromboxanes
Alternative Parents
Substituents
  • Thromboxane
  • Long-chain fatty acid
  • Heterocyclic fatty acid
  • Hydroxy fatty acid
  • Meta-dioxane
  • Fatty acid
  • Oxane
  • Unsaturated fatty acid
  • Secondary alcohol
  • Oxetane
  • Acetal
  • Carboxylic acid derivative
  • Carboxylic acid
  • Oxacycle
  • Monocarboxylic acid or derivatives
  • Organoheterocyclic compound
  • Alcohol
  • Organic oxide
  • Hydrocarbon derivative
  • Carbonyl group
  • Organooxygen compound
  • Organic oxygen compound
  • Aliphatic heteropolycyclic compound
Molecular FrameworkAliphatic heteropolycyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
Biological locationSource
Process
Naturally occurring process
RoleNot Available
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot 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)
  • Endoplasmic reticulum
Biospecimen Locations
  • Blood
  • Cerebrospinal Fluid (CSF)
  • Urine
Tissue Locations
  • Platelet
  • Smooth Muscle
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected and Quantified0.00024 +/- 0.000036 uMAdult (>18 years old)BothNormal details
Abnormal Concentrations
Associated Disorders and Diseases
Disease References
Coronary heart disease
  1. Akimova EV: Prostacyclin and thromboxane A2 levels in children and adolescents with an inherited predisposition to coronary heart disease: a family study. Coron Artery Dis. 1994 Sep;5(9):761-5. [PubMed:7858766 ]
Acute Lymphoblastic Leukemia
  1. Bogusiewicz A, Stratton SL, Ellison DA, Mock DM: Biotin accounts for less than half of all biotin and biotin metabolites in the cerebrospinal fluid of children. Am J Clin Nutr. 2008 Nov;88(5):1291-6. [PubMed:18996865 ]
Head injury
  1. Bogusiewicz A, Stratton SL, Ellison DA, Mock DM: Biotin accounts for less than half of all biotin and biotin metabolites in the cerebrospinal fluid of children. Am J Clin Nutr. 2008 Nov;88(5):1291-6. [PubMed:18996865 ]
Hepatocellular carcinoma
  1. Matsumata T, Yamamoto K, Shirabe K, Shimada M, Sugimachi K, Takesue F, Muto Y, Ikeda T: Urinary excretion of prostaglandins and renal function after hepatic resection. Hepatogastroenterology. 1997 May-Jun;44(15):774-8. [PubMed:9222688 ]
Associated OMIM IDs
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID4444137
KEGG Compound IDC02198
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkThromboxane A2
METLIN IDNot Available
PubChem Compound5280497
PDB IDNot Available
ChEBI ID15627
Food Biomarker OntologyNot Available
VMH IDTXA2
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References

Enzymes

General function:
Involved in monooxygenase activity
Specific function:
Not Available
Gene Name:
TBXAS1
Uniprot ID:
P24557
Molecular weight:
60648.885
Reactions
Prostaglandin H2 → Thromboxane A2details
General function:
Involved in G-protein coupled receptor protein signaling pathway
Specific function:
Receptor for thromboxane A2 (TXA2), a potent stimulator of platelet aggregation. The activity of this receptor is mediated by a G-protein that activates a phosphatidylinositol-calcium second messenger system. In the kidney, the binding of TXA2 to glomerular TP receptors causes intense vasoconstriction. Activates phospholipase C. Isoform 1 activates adenylyl cyclase. Isoform 2 inhibits adenylyl cyclase
Gene Name:
TBXA2R
Uniprot ID:
P21731
Molecular weight:
37430.7
General function:
Involved in monooxygenase activity
Specific function:
Not Available
Gene Name:
Not Available
Uniprot ID:
Q53F23
Molecular weight:
60648.9