5AJD:
reference: Architecture of the ubiquitylation module of the yeast ccr4-not complex., Bhaskar V, Basquin J, Conti E, Structure. 2015 May 5;23(5):921-8. doi: 10.1016/j.str.2015.03.011. Epub 2015 Apr , 23. PMID: 25914052

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