3UAC:
reference: An O-centered structure of the trinuclear copper center in the Cys500Ser/Glu506Gln mutant of CueO and structural changes in low to high X-ray dose conditions., Komori H, Sugiyama R, Kataoka K, Higuchi Y, Sakurai T, Angew Chem Int Ed Engl. 2012 Feb 20;51(8):1861-4. doi: 10.1002/anie.201107739., Epub 2012 Jan 16. PMID: 22250058

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