CliffMadHoneyIndex

Molecular Mechanism of Mad Honey: Grayanotoxins and Site 2 Sodium Channel Pharmacology

Microscopic view of interconnected neurons in amber and blue showing sodium channel modulation by grayanotoxin on black background

Voltage-gated sodium channels (VGSCs) are the primary molecular targets of grayanotoxins. Understanding grayanotoxin pharmacology requires a foundational understanding of VGSC structure and gating. VGSCs are large integral membrane proteins — the α subunit, which contains the ion-conducting pore and the voltage-sensing machinery, is approximately 260 kDa and consists of four homologous domains (I–IV), each with […]