| Strain | Pseudomonas putida BIRD-1 |
| GI | 386010292 |
| Locus Tag | PPUBIRD1_0674 |
| Description | RluA family pseudouridine synthase |
| Strain | Pseudomonas denitrificans ATCC 13867 |
| GI | 472324126 |
| Locus Tag | H681_04760 |
| Description | pseudouridine synthase |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83648561 |
| Locus Tag | HCH_05920 |
| Description | 23S RNA-specific pseudouridylate synthases-like protein |