Regulation of store-operated calcium entry during cell division |
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Authors: | Smyth Jeremy T Putney James W |
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Affiliation: | Cell Biology and Physiology Center, National Heart, Lung, and Blood Institute-NIH, Bethesda, MD 20892, USA. |
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Abstract: | Store-operate Ca2+ channels gate Ca2+ entry into the cytoplasm in response to the depletion of Ca2+ from endoplasmic reticulum Ca2+ stores. The major molecular components of store-operated Ca2+ entry are STIM (stromal-interacting molecule) 1 (and in some instances STIM2) that serves as the endoplasmic reticulum Ca2+ sensor, and Orai (Orai1, Orai2 and Orai3) which function as pore-forming subunits of the store-operated channel. It has been known for some time that store-operated Ca2+ entry is shut down during cell division. Recent work has revealed complex mechanisms regulating the functions and locations of both STIM1 and Orai1 in dividing cells. |
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