4AEH:
reference: Structural Insights into Antibody Sequestering and Neutralizing of Na+ Channel alpha-Type Modulator from Old World Scorpion Venom., Fabrichny IP, Mondielli G, Conrod S, Martin-Eauclaire MF, Bourne Y, Marchot P, J Biol Chem. 2012 Apr 20;287(17):14136-48. Epub 2012 Feb 27. PMID: 22371498

This OCA Structure page
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