4DMN:
reference: A multimode, cooperative mechanism of action of allosteric HIV-1 integrase inhibitors., Kessl JJ, Jena N, Koh Y, Taskent-Sezgin H, Slaughter A, Feng L, de Silva S, Wu L, Le Grice SF, Engelman A, Fuchs JR, Kvaratskhelia M, J Biol Chem. 2012 Mar 21. PMID: 22437836

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