# OC Root 2nd 3rd 4th PC Gene/Definition OC.641984 Bacteria.318329 Firmicutes.304573 Firmicutes___Clostridia.186497 toc.788 toc:Toce_0833 4Fe-4S ferredoxin iron-sulfur binding domain protein; K00176 2-oxoglutarate ferredoxin oxidoreductase subunit delta [EC:1.2.7.3]