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The most ubiquitous Ca2+-sensing protein, found in all eukaryotic organisms including yeasts, is calmodulin.
Intracellular storage and release of Ca2+ from the sarcoplasmic reticulum is associated with the high-capacity, low-affinity calcium-binding protein, calsequestrin.
With their role in signal transduction, calcium-binding proteins contribute to all aspects of the cell's functioning, from homeostasis to learning and memory.
For example, the neuron-specific calexcitin has been found to have an excitatory effect on neurons, and interacts with proteins that control the firing state of neurons, such as the the voltage-dependent potassium channel.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Calcium-binding_protein". A list of authors is available in Wikipedia.|