| Strain | Pseudomonas aeruginosa DK2 |
| GI | 392986359 |
| Locus Tag | PADK2_24905 |
| Description | mce-like protein |
| Strain | Pseudomonas denitrificans ATCC 13867 |
| GI | 472327327 |
| Locus Tag | H681_20830 |
| Description | mce-like protein |
| Strain | Pseudomonas protegens Pf-5 |
| GI | 70732556 |
| Locus Tag | PFL_5242 |
| Description | PqiB family protein |