4IV3:
reference: Rational engineering of recombinant picornavirus capsids to produce safe, protective vaccine antigen., Porta C, Kotecha A, Burman A, Jackson T, Ren J, Loureiro S, Jones IM, Fry EE, Stuart DI, Charleston B, PLoS Pathog. 2013 Mar;9(3):e1003255. doi: 10.1371/journal.ppat.1003255. Epub 2013, Mar 27. PMID: 23544011

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