Abstract:BCEC express P2 receptors belonging to the P2Y subfamily. The emptying of the IP3-sensitive stores, leading to the initial peak in [Ca2+]i response, subsequently caused capacitative Ca2+ influx leading to the onset of the plateau phase. A significant homologous desensitization to UTP and msATP, selective heterologous desensitization between UTP and msATP, and selective inhibition by RB2 indicate the coexistence of multiple P2Y receptors.
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