2A1E:
reference: A potent HIV protease inhibitor identified in an epimeric mixture by high-resolution protein crystallography., Geremia S, Demitri N, Wuerges J, Benedetti F, Berti F, Tell G, Randaccio L, ChemMedChem. 2006 Feb;1(2):186-8. PMID: 16892350

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).