| 2QCY: reference: Mechanism for Controlling Dimer-monomer Switch and Coupling Dimerization to Catalysis of the SARS-CoV 3C-Like Protease., Shi J, Sivaraman J, Song J, J Virol. 2008 Feb 27;. PMID: 18305031 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).