# OC Root 2nd 3rd 4th PC Gene/Definition OC.335209 Archaea.7873 Euryarchaeota.61240 Pyrococcus.5241 pab.1438 pab:PAB2084 Electron transport protein, containing 4Fe-4S binding domain OC.335209 Archaea.7873 Crenarchaeota.13463 Acidilobus.315 asc.1286 asc:ASAC_1296 Electron transport protein, containing 4Fe-4S binding domain protein OC.335209 Archaea.7873 Crenarchaeota.13463 Acidilobus.315 acia.1290 acia:SE86_07655 electron transporter OC.335209 Archaea.7873 - - kcr.286 kcr:Kcr_0276 4Fe-4S ferredoxin iron-sulfur binding domain protein