# OC Root	2nd	3rd	4th	PC	Gene/Definition
OC.336227	Archaea.16000	Euryarchaeota.14939	-	fpl.1542	fpl:Ferp_1615   nickel-dependent hydrogenase large subunit; K06281 hydrogenase large subunit [EC:1.12.99.6]
OC.336227	Archaea.16000	Euryarchaeota.14939	Geoglobus.532	gac.692	gac:GACE_0715   hydrogenase (NiFe) large subunit; K14068 methanophenazine hydrogenase, large subunit [EC:1.12.98.3]
OC.336227	Archaea.16000	Euryarchaeota.14939	Geoglobus.532	gac.1649	gac:GACE_1725   hydrogenase (NiFe) large subunit
OC.336227	Archaea.16000	Euryarchaeota.14939	Geoglobus.532	gah.869	gah:GAH_00910   Ni,Fe-hydrogenase I large subunit
OC.336227	Archaea.16000	Euryarchaeota.14939	Geoglobus.532	gah.1935	gah:GAH_02042   methanophenazine-reducing hydrogenase, large subunit; K14068 methanophenazine hydrogenase, large subunit [EC:1.12.98.3]
OC.336227	Archaea.16000	Euryarchaeota.14939	Halodesulfurarchaeum.1547	halh.639	halh:HTSR_0657   Ni/Fe-hydrogenase large subunit; K06281 hydrogenase large subunit [EC:1.12.99.6]
OC.336227	Archaea.16000	Euryarchaeota.14939	Halodesulfurarchaeum.1547	hhsr.670	hhsr:HSR6_0683   Ni/Fe-hydrogenase large subunit; K06281 hydrogenase large subunit [EC:1.12.99.6]
OC.336227	Archaea.16000	Euryarchaeota.14939	-	nge.2033	nge:Natgr_2159   Ni,Fe-hydrogenase I large subunit; K06281 hydrogenase large subunit [EC:1.12.99.6]
OC.336227	Archaea.16000	Euryarchaeota.14939	Natronolimnobius.2702	nag.3690	nag:AArcMg_4185   Ni,Fe-hydrogenase I large subunit; K06281 hydrogenase large subunit [EC:1.12.99.6]
OC.336227	Archaea.16000	Euryarchaeota.14939	Natronolimnobius.2702	nan.3655	nan:AArc1_5124   Ni,Fe-hydrogenase I large subunit; K06281 hydrogenase large subunit [EC:1.12.99.6]