3NWS:
reference: Cdc13 N-terminal dimerization, DNA binding, and telomere length regulation., Mitchell MT, Smith JS, Mason M, Harper S, Speicher DW, Johnson FB, Skordalakes E, Mol Cell Biol. 2010 Nov;30(22):5325-34. Epub 2010 Sep 13. PMID: 20837709

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