4RJT:
reference: Hysteresis in Human UDP-Glucose Dehydrogenase Is Due to a Restrained Hexameric Structure That Favors Feedback Inhibition., Kadirvelraj R, Custer GS, Keul ND, Sennett NC, Sidlo AM, Walsh RM Jr, Wood ZA, Biochemistry. 2014 Dec 30;53(51):8043-51. doi: 10.1021/bi500594x. Epub 2014 Dec, 18. PMID: 25478983

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