3MIW:
reference: A new pentameric structure of rotavirus NSP4 revealed by molecular replacement., Chacko AR, Jeyakanthan J, Ueno G, Sekar K, Rao CD, Dodson EJ, Suguna K, Read RJ, Acta Crystallogr D Biol Crystallogr. 2012 Jan;68(Pt 1):57-61. Epub 2011 Dec 9. PMID: 22194333

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