Regulation of ion channels by phosphatidylinositol 4,5-bisphosphate

被引:365
作者
Suh, BC [1 ]
Hille, B [1 ]
机构
[1] Univ Washington, Sch Med, Dept Physiol & Biophys, Seattle, WA 98195 USA
关键词
D O I
10.1016/j.conb.2005.05.005
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Phosphaticlylinositol 4,5-bisphosphate is a signaling phospholipid of the plasma membrane that has a dynamically changing concentration. In addition to being the precursor of inositol trisphosphate and diacylglycerol, it complexes with and regulates many cytoplasmic and membrane proteins. Recent work has characterized the regulation of a wide range of ion channels by phosphatidylinositol 4,5-bisphosphate, helping to redefine the role of this lipid in cells and in neurobiology. In most cases, phosphaticlylinositol 4,5bisphosphate increases channel activity, and its hydrolysis by phospholipase C reduces channel activity.
引用
收藏
页码:370 / 378
页数:9
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