| Strain | Pseudomonas denitrificans ATCC 13867 |
| GI | 472325379 |
| Locus Tag | H681_11075 |
| Description | 4-hydroxybenzoate 3-monooxygenase |
| Strain | Pseudomonas aeruginosa 2192 |
| GI | 254243346 |
| Locus Tag | PA2G_04158 |
| Description | p-hydroxybenzoate hydroxylase |
| Strain | Pseudomonas fluorescens Pf0-1 |
| GI | 77460699 |
| Locus Tag | Pfl01_4478 |
| Description | 4-hydroxybenzoate 3-monooxygenase |