4TVH:
reference: Distinguishing Binders from False Positives by Free Energy Calculations: Fragment Screening Against the Flap Site of HIV Protease., Deng N, Forli S, He P, Perryman A, Wickstrom L, Vijayan RS, Tiefenbrunn T, Stout D, Gallicchio E, Olson AJ, Levy RM, J Phys Chem B. 2014 Sep 17. PMID: 25189630

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