| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15598307 |
| Locus Tag | PA3111 |
| Description | folylpolyglutamate synthetase |
| Strain | Pseudomonas putida W619 |
| GI | 170720744 |
| Locus Tag | PputW619_1558 |
| Description | bifunctional folylpolyglutamate synthase/ dihydrofolate synthase |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83645236 |
| Locus Tag | HCH_02439 |
| Description | folylpolyglutamate synthase |