Fig. (1).
Mammalian P2Y receptors. The eight molecularly and functionally identified mammalian P2Y receptors are listed with their cognate agonists and the heterotrimeric G protein Gα-subunits and effector enzymes most clearly associated with their signaling function. PLC, phospholipase C; AC, adenylyl cyclase. (+), increase in activity; (−) decrease in activity.