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Spatial structure of animal polypeptide toxins. The structures drawn according to the following PDB data: PcTx1 (2KNI), Hi1a (2N8F), Ugr9-1 (2LZO), APETx2 (2MUB), Mamb-2 (2MFA), α-DTx (1DTX), and MitTx-α, MitTx-β (4NTW). The distribution scheme of the secondary structure elements for each toxin is shown next to the 3D structure as an inset.
