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calcium pump

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calcium pump [¦cal·se·əm ‚pəmp]
(cell and molecular biology)
An enzyme that uses the energy generated by the hydrolysis of adenosine triphosphate (ATP) to move calcium ions out of the cytoplasm or, in the case of muscle cells, from the cytoplasm to the sarcoplasmic reticulum. Also known as Ca2+ATPase.


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The heart muscle is operated by means of the calcium pump that depends upon both calcium and ATP for its operation.
CALCIUM PUMP PROTEINS--Proteins on the sarcoplasmic reticulum that remove calcium from the cell cytosol after a contraction.
ABSTRACT This review mainly focuses on the structure, function of the sarco(endo)plasmic reticulum calcium pump (SERCA) and its role in genesis of arrhythmias.
 
 
 
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