3DNE:
reference: Crystallography-independent determination of ligand binding modes., Orts J, Tuma J, Reese M, Grimm SK, Monecke P, Bartoschek S, Schiffer A, Wendt KU, Griesinger C, Carlomagno T, Angew Chem Int Ed Engl. 2008;47(40):7736-40. PMID: 18767090

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