# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.1315476 Bacteria.243749 Proteobacteria.635781 Epsilonproteobacteria.22668 Sulfurospirillum.3058 smul.916 smul:SMUL_0921 ctaF; cytochrome c oxidase subunit IV; K02277 cytochrome c oxidase subunit IV [EC:1.9.3.1] OC.1315476 Bacteria.243749 Proteobacteria.635781 Epsilonproteobacteria.22668 Sulfurospirillum.3058 shal.924 shal:SHALO_0942 cytochrome c oxidase subunit IV