4E5X:
reference: Crystal structure of adenovirus E3-19K bound to HLA-A2 reveals mechanism for immunomodulation., Li L, Muzahim Y, Bouvier M, Nat Struct Mol Biol. 2012 Nov;19(11):1176-81. doi: 10.1038/nsmb.2396. Epub 2012, Oct 7. PMID: 23042604

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