 No toxins have shown to act similarly.The primary structure of raventoxin-III is identical to that of Magi 5 (β-hexatoxin-Mg1a), a toxin found in the venom of the spider "Macrothele gigas".Magi 5 binds at site 4 of the alpha subunit of the mammalian voltage-gated sodium channel Nav1.2 (SCN2A).