3DUZ:
reference: The postfusion structure of baculovirus gp64 supports a unified view of viral fusion machines., Kadlec J, Loureiro S, Abrescia NG, Stuart DI, Jones IM, Nat Struct Mol Biol. 2008 Oct;15(10):1024-30. Epub 2008 Sep 7. PMID: 18776902

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