# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.412096 Bacteria.1049146 Proteobacteria.507260 Betaproteobacteria.175721 Cupriavidus.23217 cgd.287 cgd:CR3_0263 coxA; cytochrome c oxidase subunit I; K02274 cytochrome c oxidase subunit I [EC:1.9.3.1]