1YJ1:
reference: Total Chemical Synthesis and X-ray Crystal Structure of a Protein Diastereomer: [D-Gln 35]Ubiquitin., Bang D, Makhatadze GI, Tereshko V, Kossiakoff AA, Kent SB, Angew Chem Int Ed Engl 2005 Jun 20;44(25):3852-3856. PMID: 15834850

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