4GSX:
reference: Structure of a dengue virus envelope protein late-stage fusion intermediate., Klein DE, Choi JL, Harrison SC, J Virol. 2013 Feb;87(4):2287-93. doi: 10.1128/JVI.02957-12. Epub 2012 Dec 12. PMID: 23236058

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