5DMR:
reference: Structural basis of suppression of host translation termination by Moloney Murine Leukemia Virus., Tang X, Zhu Y, Baker SL, Bowler MW, Chen BJ, Chen C, Hogg JR, Goff SP, Song H, Nat Commun. 2016 Jun 22;7:12070. doi: 10.1038/ncomms12070. PMID: 27329342

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