@article{articleb7891793,
title   = {Structural characterization of B and non-B subtypes of HIV-protease: insigths into the natural susceptibility to drug resistance development},
author = {Sanches, Mario and Krauchenco, Sandra and Martins, Nádia Helena and Gustchina, Alla and Wlodawer, Alexander and Polikarpov, Igor},
year = {2007},
doi = {10.1016/j.jmb.2007.03.049},
journal   = {Journal of Molecular Biology}
}