1HOS:
reference: Inhibition of human immunodeficiency virus-1 protease by a C2-symmetric phosphinate. Synthesis and crystallographic analysis., Abdel-Meguid SS, Zhao B, Murthy KH, Winborne E, Choi JK, DesJarlais RL, Minnich MD, Culp JS, Debouck C, Tomaszek TA Jr, et al., Biochemistry 1993 Aug 10;32(31):7972-80. PMID: 8347601

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