| 2NXM: reference: Computational design and experimental study of tighter binding peptides to an inactivated mutant of HIV-1 protease., Altman MD, Nalivaika EA, Prabu-Jeyabalan M, Schiffer CA, Tidor B, Proteins. 2007 Aug 29;. PMID: 17729291 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).