# OC Root 2nd 3rd 4th PC Gene/Definition OC.567009 Archaea.22699 Euryarchaeota.24445 Methanoregula.1373 mbn.847 mbn:Mboo_0831 Rubredoxin-type Fe(Cys)4 protein OC.567009 Archaea.22699 Euryarchaeota.24445 Methanoregula.1373 mfo.1952 mfo:Metfor_2107 ferredoxin-thioredoxin reductase, catalytic subunit