3TTP:
reference: Thermodynamic and structural analysis of HIV protease resistance to darunavir - analysis of heavily mutated patient-derived HIV-1 proteases., Kozisek M, Lepsik M, Grantz Saskova K, Brynda J, Konvalinka J, Rezacova P, FEBS J. 2014 Apr;281(7):1834-47. doi: 10.1111/febs.12743. PMID: 24785545

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