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We used solution NMR to investigate the structure of BeM9 toxin from <jats:italic>Mesobuthus eupeus<\/jats:italic> scorpion, a prototype \u03b1\u2010NaTx classified as an \u201c\u03b1\u2010like\u201d toxin due to its wide spectrum of activity on insect and mammalian channels. We identified a new motif that we named \u201carginine hand,\u201d whereby arginine side chain forms several hydrogen bonds with main chain atoms. 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