3M63:
reference: The yeast E4 ubiquitin ligase Ufd2 interacts with the ubiquitin-like domains of Rad23 and Dsk2 via a novel and distinct ubiquitin-like binding domain., Hanzelmann P, Stingele J, Hofmann K, Schindelin H, Raasi S, J Biol Chem. 2010 Jun 25;285(26):20390-8. Epub 2010 Apr 28. PMID: 20427284

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