| Strain | Pseudomonas putida KT2440 |
| GI | 26991339 |
| Locus Tag | PP_4655 |
| Description | protocatechuate 3,4-dioxygenase subunit alpha |
| Strain | Pseudomonas entomophila L48 |
| GI | 104783726 |
| Locus Tag | PSEEN4783 |
| Description | protocatechuate 3,4-dioxygenase subunit alpha (3,4-PCD) |
| Strain | Pseudomonas protegens Pf-5 |
| GI | 70732700 |
| Locus Tag | PFL_5395 |
| Description | protocatechuate 3,4-dioxygenase subunit alpha |