3ZCO:
reference: Dimerization of Sir3 via its C-terminal winged helix domain is essential for yeast heterochromatin formation., Oppikofer M, Kueng S, Keusch JJ, Hassler M, Ladurner AG, Gut H, Gasser SM, EMBO J. 2013 Feb 6;32(3):437-49. doi: 10.1038/emboj.2012.343. Epub 2013 Jan 8. PMID: 23299941

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