| Strain | Pseudomonas protegens Pf-5 |
| GI | 70732958 |
| Locus Tag | PFL_5672 |
| Description | coenzyme PQQ biosynthesis protein PqqF |
| Strain | Pseudomonas putida DOT-T1E |
| GI | 397694932 |
| Locus Tag | T1E_2173 |
| Description | Coenzyme PQQ synthesis protein F |
| Strain | Pseudomonas stutzeri CCUG 29243 |
| GI | 392421240 |
| Locus Tag | A458_10920 |
| Description | pyrroloquinoline quinone biosynthesis protein F |