Relevance of Na,K-ATPase to local extracellular potassium homeostasis and modulation of synaptic transmission

被引:56
|
作者
Gloor, SM
机构
[1] Biochemistry II, Swiss Fed. Institute of Technology, ETH Center
来源
FEBS LETTERS | 1997年 / 412卷 / 01期
关键词
Na; K-ATPase; regulation; ionic homeostasis; nervous system;
D O I
10.1016/S0014-5793(97)00774-6
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The ion gradients generated by the Na,K-ATPase are essential for Na+-coupled transport systems, osmoregulation and restoration of ion concentrations in excitable tissues. Indirectly, the sodium pump controls intracellular Ca2+ concentration through the Na/Ca exchanger. In the nervous system various neurotransmitters can modulate Na,K-ATPase activity. The great diversity of Na,K-ATPase subunit isoforms, their complex spatial and temporal regulation of expression and their cellular localisation imply a functional role of the sodium pump in different regulatory pathways. Among these, potassium homeostasis and modulation of synaptic transmission are discussed here. (C) 1997 Federation of European Biochemical Societies.
引用
收藏
页码:1 / 4
页数:4
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