6PSZ:
reference: Cryo-EM structures reveal two distinct conformational states in a picornavirus cell entry intermediate., Shah PNM, Filman DJ, Karunatilaka KS, Hesketh EL, Groppelli E, Strauss M, Hogle JM, PLoS Pathog. 2020 Sep 30;16(9):e1008920. doi: 10.1371/journal.ppat.1008920., eCollection 2020 Sep. PMID: 32997730

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