钠通道蛋白9型α亚基(神经内分泌钠通道)(hNE-Na)(外周钠通道1)(PN1)(钠通道蛋白IX型α亚基)(电压门控钠通道α亚基Nav1.7)
钠通道蛋白9型α亚基(神经内分泌钠通道)(hNE-Na)(外周钠通道1)(PN1)(钠通道蛋白IX型α亚基)(电压门控钠通道α亚基Nav1.7)
Q15858功能描述
Nav1.7的成孔亚基,Nav1.7是一种电压门控钠(Nav)通道,直接介导可兴奋膜中动作电位的去极化阶段。Navs,也称为VGSCs(电压门控钠通道)或VDSCs(电压依赖性钠通道),通过根据跨膜电压差在关闭和开放构象之间切换来运作。在开放构象中,它们允许Na(+)离子沿其电化学梯度选择性地通过孔道。Na(+)离子的内流引起膜去极化,启动电信号在细胞和组织中的传播(PubMed:15385606, PubMed:16988069, PubMed:17145499, PubMed:17167479, PubMed:19369487, PubMed:24311784, PubMed:25240195, PubMed:26680203, PubMed:7720699)。Nav1.7在控制伤害性感受器神经元的兴奋性和动作电位传播方面起着至关重要的作用,从而有助于疼痛的感觉感知(PubMed:17145499, PubMed:17167479, PubMed:19369487, PubMed:24311784)。 {ECO:0000269|PubMed:15178348, ECO:0000269|PubMed:15385606, ECO:0000269|PubMed:16988069, ECO:0000269|PubMed:17145499, ECO:0000269|PubMed:17167479, ECO:0000269|PubMed:19369487, ECO:0000269|PubMed:24311784, ECO:0000269|PubMed:25240195, ECO:0000269|PubMed:26680203, ECO:0000269|PubMed:7720699}。
组织特异性
Expressed strongly in dorsal root ganglion, with only minor levels elsewhere in the body, smooth muscle cells, MTC cell line and C-cell carcinoma. Also expressed in vagus nerves within the head and neck region (PubMed:31647222). Isoform 1 is expressed preferentially in the central and peripheral nervous system. Isoform 2 is expressed preferentially in the dorsal root ganglion.
亚细胞定位
Cell membrane
关键词