6B6V:
reference: Redox-dependent rearrangements of the NiFeS cluster of carbon monoxide dehydrogenase., Wittenborn EC, Merrouch M, Ueda C, Fradale L, Leger C, Fourmond V, Pandelia ME, Dementin S, Drennan CL, Elife. 2018 Oct 2;7. pii: 39451. doi: 10.7554/eLife.39451. PMID: 30277213

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