| 3UNB: reference: Immuno- and constitutive proteasome crystal structures reveal differences in substrate and inhibitor specificity., Huber EM, Basler M, Schwab R, Heinemeyer W, Kirk CJ, Groettrup M, Groll M, Cell. 2012 Feb 17;148(4):727-38. PMID: 22341445 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).