Journal
PHYSIOLOGY
Volume 19, Issue -, Pages 355-361Publisher
AMER PHYSIOLOGICAL SOC
DOI: 10.1152/physiol.00018.2004
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Funding
- NIGMS NIH HHS [GM-40457] Funding Source: Medline
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In many nonexcitable cells, stimulation with low agonist concentrations specifically activates Ca2+ entry via arachidonic acid-regulated, highly Ca2+-selective ARC channels. Only at high agonist concentrations are the more widely studied store-operated channels activated, producing sustained elevated cytosolic Ca2+ concentration signals. These signals activate calcineurin, which in turn inhibits the ARC channels, resulting in a reciprocal regulation of these two distinct Ca2+- entry pathways that may have important functional implications for the cell.
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