2QN0:
reference: Structural and Biochemical Studies of Botulinum Neurotoxin Serotype C1 Light Chain Protease: Implications for Dual Substrate Specificity(,)., Jin R, Sikorra S, Stegmann CM, Pich A, Binz T, Brunger AT, Biochemistry. 2007 Sep 18;46(37):10685-10693. Epub 2007 Aug 24. PMID: 17718519

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