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Revisiting intracellular calcium signaling semantics.
Jacques Haiech1, Emilie Audran, Marie Fève
1UMR 7200 UDS/CNRS, Laboratoire d'Innovation Thérapeutique, Université de Strasbourg, Faculté de Pharmacie, 74 route du Rhin, Illkirch, France.
Biochimie
|May 31, 2011
Summary
Cells use calcium signals for communication, with calmodulin (CaM) acting as a key translator. This review explores how CaM decodes calcium signals to control cellular events, enhancing our understanding of cellular signaling pathways.
Area of Science:
- Cellular Biology
- Biochemistry
- Molecular Signaling
Background:
- Cells utilize intracellular free calcium concentration changes for critical signaling processes.
- Signal encoding involves spatial and temporal modulation of calcium levels, detected by calcium-binding proteins (CaBPs).
- Gene expression and regulation play a role in controlling calcium signal pathways within cells.
Purpose of the Study:
- To review the mechanisms of calcium signal encoding, decoding, and translation within cells.
- To emphasize the central role of Calmodulin (CaM) in translating calcium signals.
- To clarify calcium signaling semantics for improved interdisciplinary communication.
Main Methods:
- Review of existing literature on calcium signaling pathways.
- Analysis of the structure and function of calcium-binding proteins, particularly Calmodulin.
- Examination of the process from external stimulus to cellular response.
Main Results:
- Calcium signals are encoded through spatial and temporal modulation of free calcium concentration.
- Calcium-binding proteins (CaBPs) translate these signals into cellular responses.
- Calmodulin (CaM) acts as a central hub, integrating and responding to calcium signals.
Conclusions:
- Calmodulin is a crucial protein in translating calcium signals into coordinated cellular events.
- Understanding CaM's role is key to deciphering cellular responses to calcium signaling.
- This review aims to facilitate communication among researchers studying calcium signals across diverse biological systems.
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