What is the role of ATP in the Ca 2+ imaging protocol?

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Korcan Ayata

ATP is required for the activation of purinergic receptors P2X1-7. These receptors form ligand gated ion channels, that allows ion exchange. High concentration of ATP may lead to formation of bigger pores eventually causing cell death.

Ha Nam Tran

Thank you so much your answer. But, now, i am confusing that, if another stimulate like Thapsigargin, so, which difference between them? They also made ca2+ released in SOCE channel.