1C4Z:
reference: Structure of an E6AP-UbcH7 complex: insights into ubiquitination by the E2-E3 enzyme cascade., Huang L, Kinnucan E, Wang G, Beaudenon S, Howley PM, Huibregtse JM, Pavletich NP, Science 1999 Nov 12;286(5443):1321-6. PMID: 10558980

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