has purinergic nucleotide receptor activity; displays strongest agonist potency for ATP, UTP, ITP; may play a role in regulation of hepatic bile secretion [RGD, Feb 2006]
has purinergic nucleotide receptor activity; displays strongest agonist potency for ATP, UTP, ITP; may play a role in regulation of hepatic bile secretion [RGD, Feb 2006]