| Strain | Pseudomonas aeruginosa UCBPP-PA14 |
| GI | 116050451 |
| Locus Tag | PA14_32240 |
| Description | catechol 1,2-dioxygenase |
| Strain | Pseudomonas stutzeri RCH2 |
| GI | 431927797 |
| Locus Tag | Psest_2692 |
| Description | catechol 1,2-dioxygenase, proteobacterial |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83643083 |
| Locus Tag | HCH_00174 |
| Description | protocatechuate 3,4-dioxygenase subunit beta |