5ivt
Crystal structure of hiv protease complexed with [(1s)-1-[(s)-(4-chlorophenyl)-(3,5-difluorophenyl)methyl]-2-[[5-fluoro-4-[2-[(2r,5s)-5-(2,2,2-trifluoroethylcarbamoyloxymethyl)morpholin-4-ium-2-yl]ethyl]pyridin-1-ium-3-yl]amino]-2-oxo-ethyl]ammonium