Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic.
Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic.
Biochim Biophys Acta Biomembr. 2017 May;1859(5):662-668. doi: 10.1016/j.bbamem.2017.01.018. Epub 2017 Jan 19.
Voltage-gated calcium channels (VGCCs) are transmembrane proteins that translate electrical activities into intracellular calcium elevations and downstream signaling pathways. They serve essential physiological functions including communication between nerve cells, muscle contraction, cardiac activity, and release of hormones and neurotransmitters. Asparagine-linked glycosylation has emerged as an essential post-translational modification to control the number of channels embedded in the plasma membrane but also their functional gating properties. This review provides a comprehensive overview about the current state of knowledge on the role of glycosylation in the expression and functioning of VGCCs, and discusses how variations in the glycosylation of the channel proteins can contribute to pathological conditions.
电压门控钙通道(VGCCs)是一种跨膜蛋白,可将电活动转化为细胞内钙升高和下游信号通路。它们具有重要的生理功能,包括神经元之间的通讯、肌肉收缩、心脏活动以及激素和神经递质的释放。天冬酰胺连接的糖基化已成为一种重要的翻译后修饰,可控制嵌入质膜中的通道数量,还可控制其功能门控特性。本文综述了糖基化在 VGCC 表达和功能中的作用的最新研究进展,并讨论了通道蛋白糖基化的变化如何导致病理状况。