1BKT:
reference: Solution structure of BmKTX, a K+ blocker toxin from the Chinese scorpion Buthus Martensi., Renisio JG, Romi-Lebrun R, Blanc E, Bornet O, Nakajima T, Darbon H, Proteins 2000 Jan 1;38(1):70-8. PMID: 10651040

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