3SOH:
reference: Architecture of the flagellar rotor., Paul K, Gonzalez-Bonet G, Bilwes AM, Crane BR, Blair D, EMBO J. 2011 Jun 14;30(14):2962-71. doi: 10.1038/emboj.2011.188. PMID: 21673656

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