3T3C:
reference: Mutations in HIV-1 gag and pol compensate for the loss of viral fitness caused by a highly mutated protease., Kozisek M, Henke S, Saskova KG, Jacobs GB, Schuch A, Buchholz B, Muller V, Krausslich HG, Rezacova P, Konvalinka J, Bodem J, Antimicrob Agents Chemother. 2012 May 29. PMID: 22644035

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