4M1U:
reference: The crystal structure of Shiga toxin type 2 with bound disaccharide guides the design of a heterobifunctional toxin inhibitor., Jacobson JM, Yin J, Kitov PI, Mulvey G, Griener TP, James MN, Armstrong G, Bundle DR, J Biol Chem. 2013 Nov 13. PMID: 24225957

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