| Role | Gene | Name | propionate (C) | |
|---|
| | | ⨯ | |
| Alternative cytochrome c oxidase polypeptide CoxM (EC 1.9.3.1) | No genes | | | |
| Alternative cytochrome c oxidase polypeptide CoxN (EC 1.9.3.1) | No genes | | | |
| Alternative cytochrome c oxidase polypeptide CoxO (EC 1.9.3.1) | No genes | | | |
| Alternative cytochrome c oxidase polypeptide CoxP (EC 1.9.3.1) | No genes | | | |
| Cytochrome c oxidase (B(O/a)3-type) chain I (EC 1.9.3.1) | No genes | | | |
| Cytochrome c oxidase (B(O/a)3-type) chain II (EC 1.9.3.1) | No genes | | | |
| Cytochrome c oxidase polypeptide I (EC 1.9.3.1) | PFLU_RS00295 | | -0.0 | |
| Cytochrome c oxidase polypeptide II (EC 1.9.3.1) | PFLU_RS00290 | | -0.1 | |
| Cytochrome c oxidase polypeptide IIA (EC 1.9.3.1) | No genes | | | |
| Cytochrome c oxidase polypeptide III (EC 1.9.3.1) | PFLU_RS00305 | | +0.3 | |
| Cytochrome c oxidase polypeptide IV(EC 1.9.3.1) | No genes | | | |
| Cytochrome c oxidase subunit CcoN (EC 1.9.3.1) | PFLU_RS09345 | | +0.1 | |
| | PFLU_RS14685 | | -0.3 | |
| | PFLU_RS22320 | | -1.6 | |
| | PFLU_RS22340 | | -0.3 | |
| Cytochrome c oxidase subunit CcoO (EC 1.9.3.1) | PFLU_RS09340 | | +0.2 | |
| | PFLU_RS22325 | | -1.7 | |
| | PFLU_RS22345 | | -0.6 | |
| Cytochrome c oxidase subunit CcoP (EC 1.9.3.1) | PFLU_RS22335 | | -1.9 | |
| | PFLU_RS22355 | | -0.0 | |
| Cytochrome c oxidase subunit CcoQ (EC 1.9.3.1) | PFLU_RS22330 | | N.D. | |
| | PFLU_RS22350 | | N.D. | |
| Cytochrome c oxidase, subunit IV (EC 1.9.3.1) | No genes | | | |
| Cytochrome c553-like | No genes | | | |
| FixO3 cytochrome-c oxidase subunit | No genes | | | |
| Heme bearing subunit I of the terminal oxidase (DoxB) | No genes | | | |
| Quinol oxidase (SoxABC), cytochrome aa3 subunit (SoxB) | No genes | | | |
| Quinol oxidase-2, subunit II (SoxH) | No genes | | | |
| Terminal oxidase, small hydrophobic subunit (DoxE) | No genes | | | |
| Terminal oxidase, subunit (DoxC) | No genes | | | |
| Type cbb3 cytochrome oxidase biogenesis protein CcoG, involved in Cu oxidation | PFLU_RS22360 | | -1.5 | |
| Type cbb3 cytochrome oxidase biogenesis protein CcoS, involved in heme b insertion | PFLU_RS22375 | | -1.0 | |
| cb-type cytochrome c oxidase subunit IV [EC:1.9.3.1] | No genes | | | |
| hypothetical cytochrome c oxidase polypeptide I | No genes | | | |
| membrane c-type cytochrome cy | No genes | | | |
| probable cytochrome oxidase (cbb3-type) | No genes | | | |
| quinol oxidase polypeptide I QoxB (EC:1.9.3.-) | No genes | | | |
| quinol oxidase polypeptide II QoxA (EC:1.9.3.-) | No genes | | | |
| quinol oxidase polypeptide III QoxC (EC:1.9.3.-) | No genes | | | |
| quinol oxidase polypeptide IV QoxD (EC:1.9.3.-) | No genes | | | |