| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15598307 |
| Locus Tag | PA3111 |
| Description | folylpolyglutamate synthetase |
| Strain | Pseudomonas brassicacearum subsp. brassicacearum NFM421 |
| GI | 330810790 |
| Locus Tag | PSEBR_a3858 |
| Description | bifunctional dihydrofolate synthase/tetrahydrofolate synthase |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83645236 |
| Locus Tag | HCH_02439 |
| Description | folylpolyglutamate synthase |