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PTGDR

Function

Receptor for prostaglandin D2 (PGD2). The activity of this receptor is mainly mediated by G(s) proteins that stimulate adenylate cyclase, resulting in an elevation of intracellular cAMP. A mobilization of calcium is also observed, but without formation of inositol 1,4,5-trisphosphate (By similarity). Involved in PLA2G3-dependent maturation of mast cells. PLA2G3 is secreted by immature mast cells and acts on nearby fibroblasts upstream to PTDGS to synthesize PGD2, which in turn promotes mast cell maturation and degranulation via PTGDR (By similarity).

Involvement in disease

Asthma-related traits 1

ASRT1

Asthma-related traits include clinical symptoms of asthma, such as coughing, wheezing, dyspnea, bronchial hyperresponsiveness as assessed by methacholine challenge test, serum IgE levels, atopy and atopic dermatitis.

None

Disease susceptibility is associated with variants affecting the gene represented in this entry.

Sequence similarities

Belongs to the G-protein coupled receptor 1 family.

Tissue specificity

Expressed in retinal choroid, ciliary epithelium, longitudinal and circular ciliary muscles, iris, small intestine and platelet membranes.

Cellular localization

  • Cell membrane
  • Multi-pass membrane protein

Alternative names

  • Prostaglandin D2 receptor
  • PGD receptor
  • PGD2 receptor
  • Prostanoid DP receptor
  • PTGDR

Target type

Proteins

Molecular weight

40271Da