Sodium-calcium Exchanger

From The School of Biomedical Sciences Wiki
(Difference between revisions)
Jump to: navigation, search
(Created page with "The sodium-calcium exchanger is an antiporter in theplasma membrane of a cell that transports sodium ions into the cell and calcium ions out of...")
 
m
 
Line 1: Line 1:
The sodium-calcium exchanger is an [[Antiporter|antiporter]] in the[[Plasma_membrane|plasma membrane]] of a cell that transports sodium ions into the cell and calcium ions out of the cell by [[secondary active transport|secondary active transpor]]t. It uses the downward Na<sup>+</sup> gradient into the cell created by [[Sodium_potassium_pump|sodium pumps]]&nbsp;using ATP to power the uphill transport of Ca<sup>2+</sup>&nbsp;out of the cell. It is effective at high Ca<sup>2+</sup><sup></sup><sup></sup> concentrations.
+
The sodium-calcium exchanger is an [[Antiporter|antiporter]] in the&nbsp;[[Plasma membrane|plasma membrane]] of a cell that transports sodium ions into the cell and calcium ions out of the cell by [[Secondary active transport|secondary active transport]]. It uses the downward Na<sup>+</sup> gradient into the cell created by [[Sodium potassium pump|sodium pumps]]&nbsp;using ATP to power the uphill transport of Ca<sup>2+</sup>&nbsp;out of the cell. It is effective at high Ca<sup>2+</sup><sup></sup><sup></sup> concentrations.  
  
The sodium-calcium exchanger is important in the regulation of calcium ions in a cell. Cytosolic calcium concentration is kept low because calcium ions can act as a trigger for many processes, such as [[muscle contraction|muscle contraction]] and [[Cell_signalling_pathways|cell signalling pathway]].<sub></sub>
+
The sodium-calcium exchanger is important in the regulation of calcium ions in a cell. Cytosolic calcium concentration is kept low because calcium ions can act as a trigger for many processes, such as [[Muscle contraction|muscle contraction]] and [[Cell signalling pathways|cell signalling pathways]].

Latest revision as of 15:41, 3 December 2015

The sodium-calcium exchanger is an antiporter in the plasma membrane of a cell that transports sodium ions into the cell and calcium ions out of the cell by secondary active transport. It uses the downward Na+ gradient into the cell created by sodium pumps using ATP to power the uphill transport of Ca2+ out of the cell. It is effective at high Ca2+ concentrations.

The sodium-calcium exchanger is important in the regulation of calcium ions in a cell. Cytosolic calcium concentration is kept low because calcium ions can act as a trigger for many processes, such as muscle contraction and cell signalling pathways.

Personal tools
Namespaces
Variants
Actions
Navigation
Toolbox