1FDN:
reference: Refined crystal structure of the 2[4Fe-4S] ferredoxin from Clostridium acidurici at 1.84 A resolution., Duee ED, Fanchon E, Vicat J, Sieker LC, Meyer J, Moulis JM, J Mol Biol 1994 Nov 4;243(4):683-95. PMID: 7966291

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