5YRC:
reference: Supramolecular protein cages constructed from a crystalline protein matrix., Negishi H, Abe S, Yamashita K, Hirata K, Niwase K, Boudes M, Coulibaly F, Mori H, Ueno T, Chem Commun (Camb). 2018 Feb 20;54(16):1988-1991. doi: 10.1039/c7cc08689j. PMID: 29405208

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