| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 28867740 |
| Locus Tag | PSPTO_0511 |
| Description | coenzyme PQQ synthesis protein C |
| Strain | Pseudomonas putida ND6 |
| GI | 395446756 |
| Locus Tag | YSA_05761 |
| Description | pyrroloquinoline quinone biosynthesis protein PqqC |
| Strain | Azotobacter vinelandii CA6 |
| GI | 482898625 |
| Locus Tag | AvCA6_41660 |
| Description | pyrroloquinoline quinone biosynthesis protein PqqC |