Thromboxane A2 receptor

Definition:

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.

References:

[1]. T Hirata, et al. Two thromboxane A2 receptor isoforms in human platelets. Opposite coupling to adenylyl cyclase with different sensitivity to Arg60 to Leu mutation. J Clin Invest. 1996 Feb 15;97(4):949-56. [Content Brief]

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