| 3BEP: reference: Structure of a sliding clamp on DNA., Georgescu RE, Kim SS, Yurieva O, Kuriyan J, Kong XP, O'Donnell M, Cell. 2008 Jan 11;132(1):43-54. PMID: 18191219 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).