Abstract: Darunavir, a potent antiviral drug, showed an unusual second binding site on the HIV-1
protease dimer surface of the
V32I drug resistant mutant and normal binding in the active site cavity.
Introduction: An unusual second binding site for DRV was observed in the two high-resolution crystal structures of complexes with HIV-1
PR mutants with the single substitutions of
V32I (0.84 A) and
M46L (1.22 A).
Introduction: Here, we report on solution measurements of enzyme inhibition kinetics for an optimized wild-type HIV-1
PR denoted PRWT and the
V32I mutant
PR (
PRV32I) with three
PIs: DRV, amprenavir (APV), and saquinavir (SQV) (Figur