1LLR:
reference: Characterization and crystal structure of a high-affinity pentavalent receptor-binding inhibitor for cholera toxin and E. coli heat-labile enterotoxin., Merritt EA, Zhang Z, Pickens JC, Ahn M, Hol WG, Fan E, J Am Chem Soc 2002 Jul 31;124(30):8818-24. PMID: 12137534

This OCA Structure page
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