3WZ6:
reference: Tracing binding modes in hit-to-lead optimization: chameleon-like poses of aspartic protease inhibitors., Kuhnert M, Koster H, Bartholomaus R, Park AY, Shahim A, Heine A, Steuber H, Klebe G, Diederich WE, Angew Chem Int Ed Engl. 2015 Feb 23;54(9):2849-53. doi: 10.1002/anie.201411206., Epub 2015 Jan 28. PMID: 25630461

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