4JSD:
reference: Molecular details of ligand selectivity determinants in a promiscuous beta-glucan periplasmic binding protein., Munshi P, Stanley CB, Ghimire-Rijal S, Lu X, Myles DA, Cuneo MJ, BMC Struct Biol. 2013 Oct 4;13:18. doi: 10.1186/1472-6807-13-18. PMID: 24090243

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