4BIP:
reference: Combined approaches to flexible fitting and assessment in virus capsids undergoing conformational change., Pandurangan AP, Shakeel S, Butcher SJ, Topf M, J Struct Biol. 2014 Mar;185(3):427-39. doi: 10.1016/j.jsb.2013.12.003. Epub 2013 , Dec 12. PMID: 24333899

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