5WMF:
reference: Structure and functional basis for an EBNA1 hexameric ring in Epstein-Barr Virus episome maintenance., Deakyne JS, Malecka K, Messick TE, Lieberman PM, J Virol. 2017 Jul 12. pii: JVI.01046-17. doi: 10.1128/JVI.01046-17. PMID: 28701406

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