3KT2:
reference: Resistance mechanism revealed by crystal structures of unliganded nelfinavir-resistant HIV-1 protease non-active site mutants N88D and N88S., Bihani SC, Das A, Prashar V, Ferrer JL, Hosur MV, Biochem Biophys Res Commun. 2009 Nov 13;389(2):295-300. Epub 2009 Aug 29. PMID: 19720046

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