| Strain | Pseudomonas stutzeri RCH2 |
| GI | 431927500 |
| Locus Tag | Psest_2382 |
| Description | pyrroloquinoline quinone synthesis related protease (pqqF) |
| Strain | Pseudomonas protegens CHA0 |
| GI | 501683030 |
| Locus Tag | PFLCHA0_c56240 |
| Description | coenzyme PQQ synthesis protein F |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83647677 |
| Locus Tag | HCH_05001 |
| Description | secreted/periplasmic Zn-dependent peptidase, insulinase-like |