4MRS:
reference: Structural basis for heavy metal detoxification by an Atm1-type ABC exporter., Lee JY, Yang JG, Zhitnitsky D, Lewinson O, Rees DC, Science. 2014 Mar 7;343(6175):1133-6. doi: 10.1126/science.1246489. PMID: 24604198

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