1ZLF:
reference: HIV-1 protease mutations and inhibitor modifications monitored on a series of complexes. Structural basis for the effect of the A71V mutation on the active site., Skalova T, Dohnalek J, Duskova J, Petrokova H, Hradilek M, Soucek M, Konvalinka J, Hasek J, J Med Chem. 2006 Sep 21;49(19):5777-84. PMID: 16970402

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