| 3CVZ: reference: Structural insights into the molecular organization of the S-layer from Clostridium difficile., Fagan RP, Albesa-Jove D, Qazi O, Svergun DI, Brown KA, Fairweather NF, Mol Microbiol. 2009 Mar;71(5):1308-22. Epub 2009 Jan 29. PMID: 19183279 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).