| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 28867740 |
| Locus Tag | PSPTO_0511 |
| Description | coenzyme PQQ synthesis protein C |
| Strain | Pseudomonas protegens CHA0 |
| GI | 501683033 |
| Locus Tag | PFLCHA0_c56270 |
| Description | pyrroloquinoline-quinone synthase PqqC |
| Strain | Pseudomonas stutzeri CCUG 29243 |
| GI | 392421131 |
| Locus Tag | A458_10375 |
| Description | pyrroloquinoline quinone biosynthesis protein PqqC |