# OC Root 2nd 3rd 4th PC Gene/Definition OC.411997 Bacteria.396515 Proteobacteria.177503 Betaproteobacteria.268349 shd.3242 shd:SUTH_03329 cytochrome c oxidase aa3, subunit III; K02276 cytochrome c oxidase subunit III [EC:1.9.3.1]