6BVD:
reference: Structural and biochemical characterization of the protease domain of the mosaic botulinum neurotoxin type HA., Lam KH, Sikorra S, Weisemann J, Maatsch H, Perry K, Rummel A, Binz T, Jin R, Pathog Dis. 2018 Apr 23. pii: 4982781. doi: 10.1093/femspd/fty044. PMID: 29688327

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