1OAL:
reference: Active-site copper and zinc ions modulate the quaternary structure of prokaryotic Cu,Zn superoxide dismutase., Cioni P, Pesce A, Morozzo della Rocca B, Castelli S, Falconi M, Parrilli L, Bolognesi M, Strambini G, Desideri A, J Mol Biol 2003 Mar 7;326(5):1351-60. PMID: 12595249

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