| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15595303 |
| Locus Tag | PA0105 |
| Description | cytochrome c oxidase, subunit II |
| Strain | Pseudomonas putida HB3267 |
| GI | 431800126 |
| Locus Tag | B479_00840 |
| Description | cytochrome c oxidase subunit II |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83642959 |
| Locus Tag | HCH_00047 |
| Description | cytochrome-c oxidase subunit II |