The product of this gene belongs to the family of purinoceptors for ATP. This receptor functions as a ligand-gated ion channel with relatively high calcium permeability. Binding to ATP mediates synaptic transmission between neurons and from neurons to smooth muscle, being responsible, for example, for sympathetic vasoconstriction in small arteries, arterioles and vas deferens. Mouse studies suggest that this receptor is essential for normal male reproductive function. It is possible that the development of selective antagonists for this receptor may provide an effective non-hormonal male contraceptive pill.
ATP receptor; P2RX1; P2X purinoceptor 1; P2X receptor, subunit 1; P2X1; P2X1 receptor; programmed cell death 3; Purinergic receptor; purinergic receptor P2X, ligand gated ion channel, 1; purinergic receptor P2X, ligand-gated ion channel, 1; purinergic receptor P2X1; RP-2 protein