1COJ:
reference: The crystal structure of an Fe-superoxide dismutase from the hyperthermophile Aquifex pyrophilus at 1.9 A resolution: structural basis for thermostability., Lim JH, Yu YG, Han YS, Cho S, Ahn BY, Kim SH, Cho Y, J Mol Biol 1997 Jul 11;270(2):259-74. PMID: 9236127

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