6HBK:
reference: Enterovirus particles expel capsid pentamers to enable genome release., Buchta D, Fuzik T, Hrebik D, Levdansky Y, Sukenik L, Mukhamedova L, Moravcova J, Vacha R, Plevka P, Nat Commun. 2019 Mar 8;10(1):1138. doi: 10.1038/s41467-019-09132-x. PMID: 30850609

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