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Stimulation of cell-surface receptors that couple to phospholipase C to generate the second messenger inositol trisphosphate often evokes repetitive oscillations in cytosolic Ca2+ . Signalling information is encoded in both the amplitude and frequency of the Ca2+ spikes. Recent studies have revealed that the spatial profile of the oscillation also imparts signalling power; Ca2+ microdomains near store-operated CRAC channels in the plasma membrane and inositol trisphosphate-gated channels in the endoplasmic reticulum both signal to distinct downstream targets. Spatial profiling therefore increases the transduction power of the universal oscillatory cytosolic Ca2+ signal.

Original publication

DOI

10.1113/JP272860

Type

Journal article

Journal

J Physiol

Publication Date

15/05/2017

Volume

595

Pages

3053 - 3062

Keywords

calcium channel, cytosolic calcium, mitochondria, Animals, Calcium, Calcium Release Activated Calcium Channels, Calcium Signaling, Cytosol, Endoplasmic Reticulum, Humans, Mitochondria