2QPJ:
reference: Structural studies of a bifunctional inhibitor of neprilysin and DPP-IV., Oefner C, Pierau S, Schulz H, Dale GE, Acta Crystallogr D Biol Crystallogr. 2007 Sep;63(Pt 9):975-81. Epub 2007, Aug 17. PMID: 17704566

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