# OC Root 2nd 3rd 4th PC Gene/Definition OC.509065 Bacteria.260582 Firmicutes.305171 Firmicutes___Clostridia.187354 tpz.2478 tpz:Tph_c26900 hydrogenase maturation protease; K03605 hydrogenase maturation protease [EC:3.4.23.-]