# OC Root	2nd	3rd	4th	PC	Gene/Definition
OC.335186	Archaea.25577	Euryarchaeota.28330	Methanocella.1576	mpd.2539	mpd:MCP_2644   4Fe-4S ferredoxin, iron-sulfur binding protein
OC.335186	Archaea.25577	Euryarchaeota.28330	Methanocella.1576	mez.504	mez:Mtc_0479   4Fe-4S ferredoxin, iron-sulfur binding protein
OC.335186	Archaea.25577	Euryarchaeota.28330	Methanocella.1576	rci.2156	rci:RCIX476   fdx4-1; 4(4Fe-4S) polyferredoxin