| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 28869536 |
| Locus Tag | PSPTO_2338 |
| Description | protocatechuate 3,4-dioxygenase subunit beta |
| Strain | Pseudomonas sp. UW4 |
| GI | 426408117 |
| Locus Tag | PputUW4_01204 |
| Description | protocatechuate 3,4-dioxygenase subunit beta |
| Strain | Pseudomonas aeruginosa 2192 |
| GI | 254243259 |
| Locus Tag | PA2G_04067 |
| Description | protocatechuate 3,4-dioxygenase, beta subunit |