3N8B:
reference: Of bits and bugs--on the use of bioinformatics and a bacterial crystal structure to solve a eukaryotic repeat-protein structure., Graebsch A, Roche S, Kostrewa D, Soding J, Niessing D, PLoS One. 2010 Oct 14;5(10):e13402. doi: 10.1371/journal.pone.0013402. PMID: 20976240

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