Supplementary Material for: Voltage-Gated Sodium Channel β<sub>1</sub> Gene: An Overview
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<b><i>Background:</i></b> Voltage-gated sodium channels are protein complexes composed of 2 subunits, namely, pore-forming α- and regulatory β-subunits. A β-subunit consists of 5 proteins encoded by 4 genes (i.e., <i>SCN1B–SCN4B</i>). <b><i>Summary:</i></b> β<sub>1</sub>-Subunits regulate sodium ion channel functions, including gating properties, subcellular localization, and kinetics. <b><i>Key Message:</i></b> Sodium channel β<sub>1</sub>- and its variant β<sub>1B</sub>-subunits are encoded by <i>SCN1B</i>. These variants are associated with many human diseases, such as epilepsy, Brugada syndrome, Dravet syndrome, and cancers. On the basis of previous research, we aimed to provide an overview of the structure, expression, and involvement of <i>SCN1B</i> in physiological processes and focused on its role in diseases.
