1X8C:
reference: Crystal structure of the copper homeostasis protein (CutCm) from Shigella flexneri at 1.7 A resolution: The first structure of a new sequence family of TIM barrels., Zhu DY, Zhu YQ, Huang RH, Xiang Y, Yang N, Lu HX, Li GP, Jin Q, Wang DC, Proteins 2005 Feb 15;58(3):764-768. PMID: 15624211

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