1QXM:
reference: Structural analysis by X-ray crystallography and calorimetry of a haemagglutinin component (HA1) of the progenitor toxin from Clostridium botulinum., Inoue K, Sobhany M, Transue TR, Oguma K, Pedersen LC, Negishi M, Microbiology 2003 Dec;149(Pt 12):3361-70. PMID: 14663070

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