calcium pump
A transport protein responsible for moving calcium out of the cytoplasm. See calcium ATPase.

Dictionary of molecular biology. 2004.

Look at other dictionaries:

  • Calcium pump — There is a very large transmembrane electrochemical gradient of Ca2+ driving the entry of the ion into cells, yet it is very important for cells to maintain low concentrations of Ca2+ for proper cell signalling; thus it is necessary for the cell… …   Wikipedia

  • calcium pump — the mechanism of active transport of calcium (Ca2+) across a membrane, as of the sarcoplasmic reticulum of muscle cells, against a concentration gradient; the mechanism is driven by the hydrolysis of ATP by the membrane bound enzyme Ca2+ ATPase …   Medical dictionary

  • Calcium ATPase — is a form of P ATPase which transfers calcium after a muscle has contracted. The calcium ATPase are [ [http://www.nlm.nih.gov/cgi/mesh/2007/MB cgi?mode= term=Calcium+ATPase nlm.nih.gov] ] : *Plasma membrane Ca2+ ATPase *Sarcoplasmic reticulum… …   Wikipedia

  • Calcium — (pronEng|ˈkælsiəm) is the chemical element with the symbol Ca and atomic number 20. It has an atomic mass of 40.078. Calcium is a soft grey alkaline earth metal, and is the fifth most abundant element by mass in the Earth s crust. Calcium is also …   Wikipedia

  • Calcium in biology — Calcium (Ca2+) plays a vital role in the anatomy, physiology and biochemistry of organisms and of the cell, particularly in signal transduction pathways. The skeleton acts as a major mineral storage site for the element and releases Ca2+ ions… …   Wikipedia

  • Calcium reactor — In marine and reef aquariums, a calcium reactor is a device used to create a balance of alkalinity in the system. An acidic solution is produced by injecting carbon dioxide into a chamber with salt water and calcium rich media. The carbon dioxide …   Wikipedia

  • pump — 1. An apparatus for forcing a gas or liquid from or to any part. 2. Any mechanism for using metabolic energy to accomplish active transport of a substance. breast p. a suction instrument for withdra …   Medical dictionary

  • Calcium channel blocker — A calcium channel blocker (CCB) is a chemical that disrupts the movement of calcium (Ca2+) through calcium channels.[1] CCB drugs devised to target neurons are used as antiepileptics. However, the most widespread clinical usage of calcium channel …   Wikipedia

  • calcium ATPase — Usually used of the calcium pumping ATPase present in high concentration as an integral membrane protein of the sarcoplasmic reticulum of muscle. This pump lowers the cytoplasmic calcium level and causes contraction to stop. Normal function of… …   Dictionary of molecular biology

  • Biological pump — In oceanic biogeochemistry, the biological pump is the sum of a suite of biologically mediated processes that transport carbon from the surface euphotic zone to the ocean s interior. OverviewThe organic carbon that forms the biological pump is… …   Wikipedia

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