Human SCN4A full length protein-synthetic nanodisc

Voltage-gated sodium channels are transmembrane glycoprotein complexes composed of a large alpha subunit with 24 transmembrane domains and one or more regulatory beta subunits. They are responsible for the generation and propagation of action potentials in neurons and muscle. This gene encodes one member of the sodium channel alpha subunit gene family. It is expressed in skeletal muscle, and mutations in this gene have been linked to several myotonia and periodic paralysis disorders. [provided by RefSeq, Jul 2008]. Human SCN4A full length protein-synthetic nanodisc. Protein function: Pore-forming subunit of a voltage-gated sodium channel complex through which Na(+) ions pass in accordance with their electrochemical gradient. Alternates between resting, activated and inactivated states (PubMed:12766226, PubMed:29992740, PubMed:30190309, PubMed:15318338, PubMed:16890191, PubMed:18690054, PubMed:17898326, PubMed:19347921, PubMed:25707578, PubMed:26700687). Required for normal muscle fiber excitability, normal muscle contraction and relaxation cycles, and constant muscle strength in the presence of fluctuating K(+) levels (PubMed:12766226, PubMed:15318338, PubMed:16890191, PubMed:19347921, PubMed:25707578, PubMed:26700687, PubMed:26659129). [The UniProt Consortium]