# OC Root 2nd 3rd 4th PC Gene/Definition OC.641969 Bacteria.318311 Firmicutes.14051 Firmicutes___Clostridia.9127 toc.1137 toc:Toce_1205 4Fe-4S ferredoxin iron-sulfur binding domain protein; K00176 2-oxoglutarate ferredoxin oxidoreductase subunit delta [EC:1.2.7.3]