1FCA:
reference: Structure of the ferredoxin from Clostridium acidurici: model at 1.8 A resolution., TranQui D, Jesior JC, Acta Crystallogr D Biol Crystallogr. 1995 Mar 1;51(Pt 2):155-9. PMID: 15299316

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