3ZNI:
reference: Essentiality of a non-RING element in priming donor ubiquitin for catalysis by a monomeric E3., Dou H, Buetow L, Sibbet GJ, Cameron K, Huang DT, Nat Struct Mol Biol. 2013 Jul 14. doi: 10.1038/nsmb.2621. PMID: 23851457

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