SCN1B

Sodium channel subunit beta-1 is a protein that in humans is encoded by the SCN1B gene.

Voltage-gated sodium channels are essential for the generation and propagation of action potentials in striated muscle and neuronal tissues. Biochemically, they consist of a large alpha subunit and 1 or 2 smaller beta subunits, such as SCN1B. The alpha subunit alone can exhibit all the functional attributes of a voltage-gated Na+ channel, but requires a beta-1 subunit for normal inactivation kinetics.[supplied by OMIM]

Mutation in the SCN1B gene are associated with disorders such as Brugada syndrome, Dravet Syndrome, and GEFS.

This article incorporates text from the United States National Library of Medicine, which is in the public domain.