# OC Root 2nd 3rd 4th PC Gene/Definition OC.226762 Bacteria.396865 Aquificae.1671 Hydrogenobaculum.1584 hya.346 hya:HY04AAS1_0341 Radical SAM domain protein OC.226762 Bacteria.396865 Aquificae.1671 Hydrogenobacter.533 hth.149 hth:HTH_0147 nirJ; predicted Fe-S oxidoreductases OC.226762 Bacteria.396865 Aquificae.1671 Hydrogenobacter.533 hte.149 hte:Hydth_0148 Radical SAM domain protein OC.226762 Bacteria.396865 Aquificae.5184 Sulfurihydrogenibium.1755 sul.447 sul:SYO3AOP1_0459 Radical SAM domain protein OC.226762 Bacteria.396865 Aquificae.1671 - pmx.330 pmx:PERMA_0308 heme d1 biosynthesis protein NirJ