1NDD:
reference: Crystal structure of the human ubiquitin-like protein NEDD8 and interactions with ubiquitin pathway enzymes., Whitby FG, Xia G, Pickart CM, Hill CP, J Biol Chem 1998 Dec 25;273(52):34983-91. PMID: 9857030

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