# OC Root 2nd 3rd PC Gene/Definition OC.456075 Archaea.83561 Euryarchaeota.69483 mer.152 mer:MMINT_01050 Ni,Fe-hydrogenase III small subunit; K14088 ech hydrogenase subunit C OC.456079 Archaea.28150 Euryarchaeota.31691 mer.1492 mer:MMINT_17030 Ni,Fe-hydrogenase III small subunit; K14088 ech hydrogenase subunit C