Chansporter complexes in cell signaling.

Chansporter complexes in cell signaling.
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DOI:
10.1002/1873-3468.12755
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发表时间:
2017-09
期刊:
影响因子:
3.5
通讯作者:
Abbott GW
Abbott GW
中科院分区:
生物学3区
文献类型:
--
作者:
Abbott GW

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离子通道促进离子跨细胞膜扩散,用于神经元信号传导、肌肉收缩和液体稳态等多种目的。溶质转运蛋白通常利用离子梯度将水性溶质向上移动其浓度梯度,也可以完成多种任务。最近,发现了越来越多的离子通道转运蛋白(“chansporter”)复合物。 Chansporter复合物的形成可以克服通道和转运蛋白、它们转运的离子和其他底物以及它们必须响应的环境因素之间的快速信号集成和反馈的相当大的空间障碍。在此,总结了该领域的当前知识,涵盖异源表达结构/功能发现以及通道转运蛋白复合物在体内细胞信号传导中发挥对比作用的潜在机制。
Ion channels facilitate diffusion of ions across cell membranes for such diverse purposes as neuronal signalling, muscular contraction, and fluid homeostasis. Solute transporters often utilize ionic gradients to move aqueous solutes up their concentration gradient, also fulfilling a wide variety of tasks. Recently, an increasing number of ion channel-transporter (“chansporter”) complexes has been discovered. Chansporter complex formation may overcome what could otherwise be considerable spatial barriers to rapid signal integration and feedback between channels and transporters, the ions and other substrates they transport, and environmental factors to which they must respond. Here, current knowledge in this field is summarized, covering both heterologous expression structure/function findings and potential mechanisms by which chansporter complexes fulfil contrasting roles in cell signalling in vivo.
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