# OC Root 2nd 3rd 4th PC Gene/Definition OC.509817 Bacteria.396939 Aquificae.1858 Hydrogenobacter.674 hth.1641 hth:HTH_1663 iron-sulfur cluster assembly accessory protein OC.509817 Bacteria.396939 Aquificae.1858 Hydrogenobacter.674 hte.1619 hte:Hydth_1649 iron-sulfur cluster assembly accessory protein