4I6X:
reference: Structure of the Non-Catalytic Domain of the Protein Disulfide Isomerase-Related Protein (PDIR) Reveals Function in Protein Binding., Vinaik R, Kozlov G, Gehring K, PLoS One. 2013 Apr 16;8(4):e62021. doi: 10.1371/journal.pone.0062021. Print 2013. PMID: 23614004

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