2H6J:
reference: Proteasome assembly triggers a switch required for active-site maturation., Witt S, Kwon YD, Sharon M, Felderer K, Beuttler M, Robinson CV, Baumeister W, Jap BK, Structure. 2006 Jul;14(7):1179-88. PMID: 16843899

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