3J6R:
reference: Maturation of the human papillomavirus 16 capsid., Cardone G, Moyer AL, Cheng N, Thompson CD, Dvoretzky I, Lowy DR, Schiller JT, Steven AC, Buck CB, Trus BL, MBio. 2014 Aug 5;5(4):e01104-14. doi: 10.1128/mBio.01104-14. PMID: 25096873

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