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ATP enhances Ca(2+) release from inositol (1,4,5)-trisphosphate receptors (InsP(3)R). However, the three isoforms of InsP(3)R are reported to respond to ATP with differing sensitivities. Ca(2+)(More)
The effects of acetylcholine (ACh), cholecystokinin (CCK), internally applied GTP-gamma-S, inositol trisphosphate [Ins (1,4,5) P3] or Ca2+ on the cytoplasmic free Ca2+ concentration [( Ca2+]i) were(More)