# OC Root 2nd 3rd 4th PC Gene/Definition OC.459920 Bacteria.374281 Firmicutes.292747 Firmicutes___Clostridia.168050 hmo.62 hmo:HM1_0006 4fe-4S ferredoxin, iron-sulfur binding domain protein OC.459920 Bacteria.374281 Actinobacteria.269324 - ccu.780 ccu:Ccur_08160 4Fe-4S protein