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TBXAS1

Chr 7q34

thromboxane A synthase 1

Aliases:
CYP5, CYP5A1, THAS, TXS, TXAS
MANE:
ENST00000448866.7

Annotations refreshed 1 month ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Bleeding and platelet disorders

    BIALLELIC, autosomal or pseudoautosomal
  • DDG2P

    BIALLELIC, autosomal or pseudoautosomal
  • Inherited bleeding disorders

    BIALLELIC, autosomal or pseudoautosomal
  • Skeletal dysplasia

    BIALLELIC, autosomal or pseudoautosomal
  • Fetal anomalies

    BIALLELIC, autosomal or pseudoautosomal
  • Intellectual disability

    BIALLELIC, autosomal or pseudoautosomal

Disease associations (Open Targets)

  • ghosal hematodiaphyseal dysplasia

    0.78
  • platelet-type bleeding disorder 14

    0.55
  • anemia (phenotype)

    0.37
  • bone disorder

    0.37
  • Recurrent thrombophlebitis

    0.37
  • dry eye syndrome

    0.36
  • Keratoconjunctivitis sicca

    0.35
  • Precordial pain

    0.33
  • tricuspid valve disorder

    0.33
  • stroke disorder

    0.32

Score is the Open Targets composite evidence score (0-1). Higher = stronger gene-disease association.

Protein function (UniProt)

Thromboxane-A synthase

Catalyzes the conversion of prostaglandin H2 (PGH2) to thromboxane A2 (TXA2), a potent inducer of blood vessel constriction and platelet aggregation (PubMed:11097184, PubMed:11297515, PubMed:22735388, PubMed:24009185, PubMed:8436233, PubMed:9873013). Also cleaves PGH2 to 12-hydroxy-heptadecatrienoicacid (12-HHT) and malondialdehyde, which is known to act as a mediator of DNA damage. 12-HHT and malondialdehyde are formed stoichiometrically in the same amounts as TXA2 (PubMed:11297515, PubMed:22735388, PubMed:9873013). Additionally, displays dehydratase activity, toward (15S)-hydroperoxy-(5Z,8Z,11Z,13E)-eicosatetraenoate (15(S)-HPETE) producing 15-KETE and 15-HETE (PubMed:17459323)

Data sources: HGNC (CC BY 4.0), AlphaFold (CC BY 4.0, Jumper et al. Nature 2021), Genomics England PanelApp (CC BY 4.0), ClinGen, Open Targets (CC0), UniProt.

Not for sole clinical decision-making. Always verify against primary sources.