| 3JQO: reference: Structure of the outer membrane complex of a type IV secretion system., Chandran V, Fronzes R, Duquerroy S, Cronin N, Navaza J, Waksman G, Nature. 2009 Dec 24;462(7276):1011-5. Epub 2009 Nov 29. PMID: 19946264 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).