purinergic receptors

purinergic receptors
membrane receptors widely expressed in the brain, peripheral tissues, and circulating blood cells, that bind purine bases or nucleotides. They are grouped by ligand as P1 (adenosine), P2X (ATP-gated channels, q.v.), and P2Y, (GTP). Most mediate their responses by G proteins.

Medical dictionary. 2011.

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