Tags: Protein.
Sodium channel voltage-gated type III alpha subunit (SCN3A) is a protein that in humans is encoded by the Nav1.3 gene.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.