2R43:
reference: Structural and Kinetic Analysis of Pyrrolidine-Based Inhibitors of the Drug-Resistant Ile84Val Mutant of HIV-1 Protease., Bottcher J, Blum A, Heine A, Diederich WE, Klebe G, J Mol Biol. 2008 Jul 29. PMID: 18692068

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