How lipids contribute to ion channel function, a fat perspective on direct and indirect interactions.

How lipids contribute to ion channel function, a fat perspective on direct and indirect interactions.
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DOI:
10.1016/j.sbi.2018.03.015
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发表时间:
2018-08
影响因子:
6.8
通讯作者:
Vásquez V
Vásquez V
中科院分区:
生物学2区
文献类型:
--
作者:
Cordero-Morales JF;Vásquez V

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膜脂质组成和重构影响离子通道的功能。多不饱和脂肪酸(PUFA)及其衍生物调节离子通道功能;这种作用是通过与蛋白质结合直接发生还是通过改变膜的机械性质间接发生一直难以区分。有大量的研究解决脂肪酸的影响;最近的结构和功能分析已经确定了结合位点,并为质膜在离子通道功能中的作用提供了进一步的证据。在这里,我们审查阳离子通道,不共享一个共同的拓扑结构或脂质结合签名序列,但最近有令人信服的数据,支持直接和间接调制PUFA或其衍生物。
Membrane lipid composition and remodeling influence the function of ion channels. Polyunsaturated fatty acids (PUFAs) and their derivatives modulate ion channel function; whether this effect occurs directly by binding to the protein or indirectly through alteration of membranes' mechanical properties has been difficult to distinguish. There are a large number of studies addressing the effect of fatty acids; recent structural and functional analyses have identified binding sites and provided further evidence for the role of the plasma membrane in ion channel function. Here, we review cation channels that do not share a common topology or lipid-binding signature sequence, but for which there are recent compelling data that support both direct and indirect modulation by PUFAs or their derivatives.
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