| Strain | Pseudomonas syringae pv. phaseolicola 1448A |
| GI | 71737663 |
| Locus Tag | PSPPH_4708 |
| Description | pyrroloquinoline quinone biosynthesis protein PqqE |
| Strain | Pseudomonas putida BIRD-1 |
| GI | 386010035 |
| Locus Tag | PPUBIRD1_0412 |
| Description | coenzyme PQQ synthesis protein E |
| Strain | Azotobacter vinelandii CA6 |
| GI | 482898627 |
| Locus Tag | AvCA6_41640 |
| Description | pyrroloquinoline quinone biosynthesis protein PqqE |