PKC regulation of ion channels: The involvement of PIP(2).

PKC regulation of ion channels: The involvement of PIP(2).
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DOI:
10.1016/j.jbc.2022.102035
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发表时间:
2022-06
影响因子:
4.8
通讯作者:
Logothetis, Diomedes E.
Logothetis, Diomedes E.
中科院分区:
生物学2区
文献类型:
--
作者:
Gada, Kirin D.;Logothetis, Diomedes E.

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离子通道是膜蛋白的一部分,其门控越来越多地被证明依赖于低丰度膜磷脂,磷脂酰肌醇(4,5)二磷酸的存在。离子通道的表达和功能通过特定激酶(包括各种PKC亚型)的蛋白质磷酸化来严格调节。几个通道已被进一步证明通过改变表面表达,通道开放的可能性,其激活的电压依赖性的变化,或失活或脱敏的变化,由PKC调节。在这篇综述中,我们调查的各种离子通道的PKC亚型的磷酸化的影响,并检查磷酸化的离子通道的依赖磷脂酰肌醇(4,5)二磷酸作为一个机械终点,以控制通道门控。
Ion channels are integral membrane proteins whose gating has been increasingly shown to depend on the presence of the low-abundance membrane phospholipid, phosphatidylinositol (4,5) bisphosphate. The expression and function of ion channels is tightly regulated via protein phosphorylation by specific kinases, including various PKC isoforms. Several channels have further been shown to be regulated by PKC through altered surface expression, probability of channel opening, shifts in voltage dependence of their activation, or changes in inactivation or desensitization. In this review, we survey the impact of phosphorylation of various ion channels by PKC isoforms and examine the dependence of phosphorylated ion channels on phosphatidylinositol (4,5) bisphosphate as a mechanistic endpoint to control channel gating.
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