3WHN:
reference: HO-dependent substrate oxidation by an engineered diiron site in a bacterial hemerythrin., Okamoto Y, Onoda A, Sugimoto H, Takano Y, Hirota S, Kurtz DM, Shiro Y, Hayashi T, Chem Commun (Camb). 2014 Jan 8. PMID: 24400317

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