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Aliases for TBXA2R Gene

Aliases for TBXA2R Gene

  • Thromboxane A2 Receptor 2 3
  • Prostanoid TP Receptor 3 4
  • BDPLT13 3 6
  • TXA2-R 3 4

External Ids for TBXA2R Gene

Previous GeneCards Identifiers for TBXA2R Gene

  • GC19M003687
  • GC19M003664
  • GC19M003534
  • GC19M003545
  • GC19M003359

Summaries for TBXA2R Gene

Entrez Gene Summary for TBXA2R Gene

  • This gene encodes a member of the G protein-coupled receptor family. The protein interacts with thromboxane A2 to induce platelet aggregation and regulate hemostasis. A mutation in this gene results in a bleeding disorder. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2009]

GeneCards Summary for TBXA2R Gene

TBXA2R (Thromboxane A2 Receptor) is a Protein Coding gene. Diseases associated with TBXA2R include bleeding disorder, platelet-type, 13 and bleeding diathesis due to thromboxane synthesis deficiency. Among its related pathways are Signaling by GPCR and p75 NTR receptor-mediated signalling. GO annotations related to this gene include guanyl-nucleotide exchange factor activity and thromboxane A2 receptor activity. An important paralog of this gene is PTGER2.

UniProtKB/Swiss-Prot for TBXA2R Gene

  • 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.

Tocris Summary for TBXA2R Gene

  • Prostanoid receptors are activated by the endogenous ligands prostaglandin (PG) D2, PGE2, PGF2alpha, PGH2, prostacyclin (PGI2) and thromboxane A2. Cyclooxygenase (COX) converts arachidonic acid to PGH2, from which the other prostaglandins are synthesized. Prostanoid receptors are a family of nine G-protein-coupled receptors that have distinct tissue distributions and actions. TP receptors can be coupled to both Galphaq and Galphai. They are expressed abundantly in highly vascular tissues such as the kidney and heart, and immune-related organs such as the thymus and spleen. They mediate smooth muscle contraction and platelet aggregation.

Gene Wiki entry for TBXA2R Gene

No data available for PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for TBXA2R Gene

Genomics for TBXA2R Gene

Regulatory Elements for TBXA2R Gene

Genomic Location for TBXA2R Gene

3,594,506 bp from pter
3,606,840 bp from pter
12,335 bases
Minus strand

Genomic View for TBXA2R Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for TBXA2R Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for TBXA2R Gene

Proteins for TBXA2R Gene

  • Protein details for TBXA2R Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Thromboxane A2 receptor
    Protein Accession:
    Secondary Accessions:
    • O75228
    • Q6DK52
    • Q9UCY1
    • Q9UCY2

    Protein attributes for TBXA2R Gene

    343 amino acids
    Molecular mass:
    37431 Da
    Quaternary structure:
    • Interacts with RPGRIP1L. Interacts with PSMA3. Interacts with GNB2L1/RACK1; the interaction regulates TBXA2R cell surface expression.
    • Sequence=AAA58957.1; Type=Frameshift; Positions=329; Evidence={ECO:0000305};

    Three dimensional structures from OCA and Proteopedia for TBXA2R Gene

    Alternative splice isoforms for TBXA2R Gene


neXtProt entry for TBXA2R Gene

Proteomics data for TBXA2R Gene at MOPED

Post-translational modifications for TBXA2R Gene

  • Glycosylation at Asn4 and Asn16
  • Modification sites at PhosphoSitePlus

Other Protein References for TBXA2R Gene

ENSEMBL proteins:
Reactome Protein details:
REFSEQ proteins:

No data available for DME Specific Peptides for TBXA2R Gene

Domains for TBXA2R Gene

Gene Families for TBXA2R Gene

  • PTGR :GPCR / Class A : Prostanoid receptors

Protein Domains for TBXA2R Gene

Suggested Antigen Peptide Sequences for TBXA2R Gene

Graphical View of Domain Structure for InterPro Entry



  • P21731
  • Belongs to the G-protein coupled receptor 1 family.
genes like me logo Genes that share domains with TBXA2R: view

Function for TBXA2R Gene

Molecular function for TBXA2R Gene

GENATLAS Biochemistry: thromboxane A2 receptor (platelet,placenta,lung,megakaryocyte), G protein coupled receptor superfamily
UniProtKB/Swiss-Prot 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 Ontology (GO) - Molecular Function for TBXA2R Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0004930 G-protein coupled receptor activity --
GO:0004960 thromboxane receptor activity --
GO:0004961 thromboxane A2 receptor activity TAS 8119956
GO:0005085 guanyl-nucleotide exchange factor activity TAS --
GO:0005515 protein binding IPI 17644091
genes like me logo Genes that share ontologies with TBXA2R: view
genes like me logo Genes that share phenotypes with TBXA2R: view

Animal Models for TBXA2R Gene

MGI Knock Outs for TBXA2R:

miRNA for TBXA2R Gene

miRTarBase miRNAs that target TBXA2R

No data available for Enzyme Numbers (IUBMB) , Transcription Factor Targeting and HOMER Transcription for TBXA2R Gene

Localization for TBXA2R Gene

Subcellular locations from UniProtKB/Swiss-Prot for TBXA2R Gene

Cell membrane; Multi-pass membrane protein.

Subcellular locations from

Jensen Localization Image for TBXA2R Gene COMPARTMENTS Subcellular localization image for TBXA2R gene
Compartment Confidence
plasma membrane 5
extracellular 2

Gene Ontology (GO) - Cellular Components for TBXA2R Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0001669 acrosomal vesicle IEA --
GO:0005886 plasma membrane TAS --
GO:0005887 integral component of plasma membrane TAS 1825698
GO:0016021 integral component of membrane --
genes like me logo Genes that share ontologies with TBXA2R: view

Pathways for TBXA2R Gene

genes like me logo Genes that share pathways with TBXA2R: view

Pathways by source for TBXA2R Gene

Gene Ontology (GO) - Biological Process for TBXA2R Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0006954 inflammatory response IEA --
GO:0007186 G-protein coupled receptor signaling pathway TAS 1825698
GO:0007204 positive regulation of cytosolic calcium ion concentration IEA --
GO:0007584 response to nutrient IEA --
GO:0007596 blood coagulation TAS --
genes like me logo Genes that share ontologies with TBXA2R: view

Compounds for TBXA2R Gene

(5) Tocris Compounds for TBXA2R Gene

Compound Action Cas Number
L-161,982 Selective EP4 receptor antagonist [147776-06-5]
L-798,106 Potent and highly selective EP3 antagonist [244101-02-8]
Prostaglandin E2 Major endogenous prostanoid [363-24-6]
TCS 2510 Selective EP4 agonist [346673-06-1]
U 46619 Potent, stable thromboxane A2 (TP) receptor agonist [56985-40-1]

(3) HMDB Compounds for TBXA2R Gene

Compound Synonyms Cas Number PubMed IDs
  • Ca
  • Thromboxane A2
Thromboxane A2
  • (1S-(1alpha,3alpha,3R*),4beta(Z),5alpha)-7-(3-(3-hydroxy-1-octenyl)-2,6-dioxabicyclo(3.1.1)hept-4-yl)-5-Heptenoate

(1) Drugbank Compounds for TBXA2R Gene

Compound Synonyms Cas Number Type Actions PubMed IDs
110140-89-1 target antagonist

(38) IUPHAR Ligand for TBXA2R Gene

Ligand Type Action Affinity Pubmed IDs
ifetroban Antagonist Antagonist 10
S-145 Antagonist Antagonist 9.6
GR 32191 Antagonist Antagonist 9.4
I-SAP Antagonist Antagonist 9.33
I-BOP Agonist Agonist 9.32
[125I]SAP Antagonist Antagonist 9.3
SQ-29548 Antagonist Antagonist 9.1
KW-3635 Antagonist Antagonist 8.9
[3H]S-145 Antagonist Antagonist 8.9
ONO 3708 Antagonist Antagonist 8.9
[125I]BOP Agonist Full agonist 8.7
EP 171 Agonist Full agonist 8.5
U46609 Agonist Full agonist 8.4
[125I]SQ-29548 Antagonist Antagonist 8.3
[3H]SQ-29548 Antagonist Antagonist 8.2
ramatroban Antagonist Antagonist 8
AGN 191976 Agonist Full agonist 7.8
[3H]U46619 Agonist Full agonist 7.8
daltroban Antagonist Antagonist 7.7
[125I]PTA-OH Antagonist Antagonist 7.7
S-5751 Antagonist Antagonist 7.6
U46619 Agonist Full agonist 7.5
ICI 192605 Antagonist Antagonist 7.19
ONO-8711 Antagonist Antagonist 7.1
STA2 Agonist Agonist 7.06
10,10-difluoro TXA2 Agonist Full agonist 7
CTA2 Agonist Full agonist 6.5
M&B 28767 Agonist Full agonist 6.5
S 18886 Antagonist Antagonist 6.49
AH23848 Antagonist Antagonist 6.2
iloprost Agonist Full agonist 5.2
cloprostenol Agonist Full agonist 5.2
PGF2alpha Agonist Full agonist 5.1
carbacyclin Agonist Full agonist 4.7
butaprost (free acid form) Agonist Full agonist 4.7
PGE2 Agonist Full agonist 4.5
fluprostenol Agonist Full agonist 4.3
AGN192093 Agonist Agonist

(65) Novoseek inferred chemical compound relationships for TBXA2R Gene

Compound -log(P) Hits PubMed IDs
thromboxane a2 96.8 158
i-bop 90.7 2
sq 29548 90 6
thromboxane 86.9 32
gr 32191 86.6 6

(1) PharmGKB related drug/compound annotations for TBXA2R Gene

Drug/compound Annotation
aspirin CA
genes like me logo Genes that share compounds with TBXA2R: view

Transcripts for TBXA2R Gene

Unigene Clusters for TBXA2R Gene

Thromboxane A2 receptor:
Representative Sequences:

Alternative Splicing Database (ASD) splice patterns (SP) for TBXA2R Gene

No ASD Table

Relevant External Links for TBXA2R Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for TBXA2R Gene

mRNA expression in normal human tissues for TBXA2R Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

mRNA differential expression in normal tissues according to GTEx for TBXA2R Gene

This gene is overexpressed in Artery - Aorta (8.3), Artery - Tibial (7.9), and Artery - Coronary (6.7).

Integrated Proteomics: protein expression from ProteomicsDB, PaxDb, and MOPED for TBXA2R Gene

SOURCE GeneReport for Unigene cluster for TBXA2R Gene Hs.442530

genes like me logo Genes that share expressions with TBXA2R: view

No data available for mRNA Expression by UniProt/SwissProt for TBXA2R Gene

Orthologs for TBXA2R Gene

This gene was present in the common ancestor of chordates.

Orthologs for TBXA2R Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia TBXA2R 35
  • 97.92 (n)
  • 98.81 (a)
  • 99 (a)
(Bos Taurus)
Mammalia TBXA2R 35
  • 82.65 (n)
  • 83.33 (a)
  • 82 (a)
(Canis familiaris)
Mammalia TBXA2R 35
  • 86.51 (n)
  • 86.61 (a)
  • 84 (a)
(Mus musculus)
Mammalia Tbxa2r 35
  • 77.61 (n)
  • 78.64 (a)
Tbxa2r 16
Tbxa2r 36
  • 76 (a)
(Monodelphis domestica)
Mammalia TBXA2R 36
  • 69 (a)
(Ornithorhynchus anatinus)
Mammalia TBXA2R 36
  • 65 (a)
(Rattus norvegicus)
Mammalia Tbxa2r 35
  • 78.12 (n)
  • 77.71 (a)
(Gallus gallus)
Aves TBXA2R 35
  • 66.58 (n)
  • 56.52 (a)
  • 55 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia Str.17668 35
tbxa2r 35
  • 55.65 (n)
  • 57.44 (a)
(Danio rerio)
Actinopterygii ptger1c 36
  • 34 (a)
Species with no ortholog for TBXA2R:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • fruit fly (Drosophila melanogaster)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • lizard (Anolis carolinensis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rainbow trout (Oncorhynchus mykiss)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea squirt (Ciona intestinalis)
  • sea squirt (Ciona savignyi)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)
  • worm (Caenorhabditis elegans)

Evolution for TBXA2R Gene

Gene Tree for TBXA2R (if available)
Gene Tree for TBXA2R (if available)

Paralogs for TBXA2R Gene

Paralogs for TBXA2R Gene

Selected SIMAP similar genes for TBXA2R Gene using alignment to 5 proteins:

genes like me logo Genes that share paralogs with TBXA2R: view

Variants for TBXA2R Gene

Sequence variations from dbSNP and Humsavar for TBXA2R Gene

SNP ID Clin Chr 19 pos Sequence Context AA Info Type MAF
rs4523 -- 3,595,796(-) GTGTA(C/T)ATCCT synonymous-codon, reference
rs5742 -- 3,602,629(-) ccgag(C/T)agctg intron-variant
rs5743 - 3,600,433(+) TCCTC(A/T)GCGGC missense, reference
rs5744 - 3,600,396(-) GCTGG(A/T)GACCG missense, reference
rs5745 -- 3,600,392(-) GTGAC(C/T)GGTAC reference, synonymous-codon

Structural Variations from Database of Genomic Variants (DGV) for TBXA2R Gene

Variant ID Type Subtype PubMed ID
nsv910722 CNV Loss 21882294
nsv910723 CNV Loss 21882294
dgv3651n71 CNV Loss 21882294
nsv470114 CNV Loss 18288195
dgv3652n71 CNV Loss 21882294
dgv3655n71 CNV Loss 21882294
dgv3656n71 CNV Loss 21882294
dgv3657n71 CNV Loss 21882294
nsv833713 CNV Loss 17160897
dgv3658n71 CNV Loss 21882294
nsv910752 CNV Loss 21882294
dgv3659n71 CNV Loss 21882294
dgv3660n71 CNV Loss 21882294
dgv3661n71 CNV Loss 21882294
nsv910762 CNV Loss 21882294
nsv910763 CNV Loss 21882294
nsv910764 CNV Loss 21882294
esv2717950 CNV Deletion 23290073
esv2717952 CNV Deletion 23290073
esv2717953 CNV Deletion 23290073

Relevant External Links for TBXA2R Gene

HapMap Linkage Disequilibrium report
Human Gene Mutation Database (HGMD)

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for TBXA2R Gene

Disorders for TBXA2R Gene

(1) OMIM Diseases for TBXA2R Gene (188070)


  • Bleeding disorder, platelet-type 13 (BDPLT13) [MIM:614009]: A disorder characterized by reduced platelet aggregation and a tendency to mild mucocutaneous bleeding. {ECO:0000269 PubMed:7929844}. Note=Disease susceptibility is associated with variations affecting the gene represented in this entry.

(1) University of Copenhagen DISEASES for TBXA2R Gene

(21) Novoseek inferred disease relationships for TBXA2R Gene

Disease -log(P) Hits PubMed IDs
erythroleukemia 48.7 1
asthma 36.6 12
rhinitis allergic perennial 30.1 2
astrocytoma 24.8 5
restenosis 23.9 2

Genatlas disease for TBXA2R Gene

bleeding diathesis with platelet unresponsiveness to thromboxane A2

Relevant External Links for TBXA2R

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
genes like me logo Genes that share disorders with TBXA2R: view

Publications for TBXA2R Gene

  1. Cloning and expression of cDNA for a human thromboxane A2 receptor. (PMID: 1825698) Hirata M. … Narumiya S. (Nature 1991) 2 3 4 23
  2. Cloning and pharmacologic characterization of a thromboxane A2 receptor from K562 (human chronic myelogenous leukemia) cells. (PMID: 7965765) D'Angelo D.D. … Dorn G.W. II (J. Pharmacol. Exp. Ther. 1994) 3 4 23
  3. Two thromboxane A2 receptor isoforms in human platelets. Opposite coupling to adenylyl cyclase with different sensitivity to Arg60 to Leu mutation. (PMID: 8613548) Hirata T. … Narumiya S. (J. Clin. Invest. 1996) 3 4 23
  4. Arg60 to Leu mutation of the human thromboxane A2 receptor in a dominantly inherited bleeding disorder. (PMID: 7929844) Hirata T. … Narumiya S. (J. Clin. Invest. 1994) 3 4 23
  5. Association of thromboxane A2 receptor gene polymorphism with the phenotype of acetyl salicylic acid-intolerant asthma. (PMID: 15898979) Kim S.H. … Shin H.D. (Clin. Exp. Allergy 2005) 3 23 48

Products for TBXA2R Gene

  • antibodies-online peptides for TBXA2R
  • antibodies-online antibodies for TBXA2R
  • antibodies-online kits for TBXA2R

Sources for TBXA2R Gene

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