calcium pump


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Related to calcium pump: plasma membrane calcium pump

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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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However, when they blocked glycolysis, they saw a reduced supply of ATP which inhibited the calcium pump, resulting in a toxic calcium overload and ultimately cell death.
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Another prediction is that if spawn time is regulated by reaching a low threshold value of calcium and achieved by endoplasmic reticulum calcium pumps acting in darkness, a shift in spawn time would result from either changing the rate at which calcium is sequestered or changing the sensitivity of a cytoplasmic process to calcium levels.
Photoreception and signal transduction in corals: proteomic and behavioral evidence for cytoplasmic calcium as a mediator of light responsivity
'It turns out that the calcium pump can accurately measure the cell's calcium content and adjust its speed in accordance with this information.
-UNIVERSITY OF COPENHAGEN - Danish researchers release ground-breaking knowledge about calcium pumps in cells
Electron microscopy reveals loss of desmosomes (epithelial intercellular junctions formed by membrane and submembrane protein complexes), breakdown of desmosome-keratin intermediate filament attachment, and perinuclear aggregates of keratin intermediate filaments.7,8 The mechanism by which decreased activity of the SERCA2 calcium pump leads to these changes is still under investigation.
A clinical and histopathological study of Darier's disease
In young hearts, these calcium pumps work quite well, but in older hearts these pumps are much less efficient.
Cellular clues: the sustained dependability of a tireless heart relies ...on the performance of the trillions of chemical reactions occurring in its aggregate of cells every instant of its function
In the presence of calbindin D, there is an increase in transmembrane calcium pump activity within the membranes of the intestine and the distal tubule of the nephron.
Renal homeostasis of calcium
Abnormal red-cell calcium pump in patients with idiopathic hypercalciuria.
Study of calcium metabolism in idiopathic hypercalciuria by strontium oral load test
Leading researchers from Aarhus University and the University of Copenhagen have now provided new information of how the calcium pump regulates the amount of calcium in the cells.
Calcium pumps 'critical for health and survival of cells'
CALCIUM PUMP PROTEINS--Proteins on the sarcoplasmic reticulum that remove calcium from the cell cytosol after a contraction.
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This review mainly focuses on the structure, function of the sarco(endo)plasmic reticulum calcium pump (SERCA) and its role in genesis of arrhythmias.
SERCA in genesis of arrhythmias: what we already know and what is new?

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