3QWW:
reference: Crystal structures of histone and p53 methyltransferase SmyD2 reveal a conformational flexibility of the autoinhibitory C-terminal domain., Jiang Y, Sirinupong N, Brunzelle J, Yang Z, PLoS One. 2011;6(6):e21640. Epub 2011 Jun 28. PMID: 21738746

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).