4 component system: The Proton-translocating Cytochrome Oxidase (COX) Superfamily
| P33517 | Cytochrome c oxidase subunit 1 |
|---|---|
| Q03736 | Cytochrome c oxidase subunit 2 |
| Q3J5F6 | Cytochrome c oxidase, aa3-type, subunit III |
| Q3IZW6 | Aa3-type cytochrome c oxidase subunit IV |