2KN8:
reference: Insight into the structure of the pUL89 C-terminal domain of the human cytomegalovirus terminase complex., Couvreux A, Hantz S, Marquant R, Champier G, Alain S, Morellet N, Bouaziz S, Proteins. 2010 May 1;78(6):1520-30. PMID: 20099308

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