3A1Q:
reference: Structural basis for specific recognition of Lys 63-linked polyubiquitin chains by tandem UIMs of RAP80., Sato Y, Yoshikawa A, Mimura H, Yamashita M, Yamagata A, Fukai S, EMBO J. 2009 Jun 18. PMID: 19536136

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