6A6I:
reference: Structural basis of ubiquitin recognition by the winged-helix domain of Cockayne syndrome group B protein., Takahashi TS, Sato Y, Yamagata A, Goto-Ito S, Saijo M, Fukai S, Nucleic Acids Res. 2019 Feb 11. pii: 5314023. doi: 10.1093/nar/gkz081. PMID: 30753618

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