This protein mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which sodium ions may pass in accordance with their electrochemical gradient. It is a tetrodotoxin-resistant sodium channel isoform. Its electrophysiological properties vary depending on the type of the associated beta subunits (in vitro). Plays a role in neuropathic pain mechanisms. Belongs to the sodium channel (TC 1.A.1.10) family. Nav1.8/SCN10A subfamily. Note: This description may include information from UniProtKB.
Protein type: Channel, sodium; Membrane protein, integral; Membrane protein, multi-pass