| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15599163 |
| Locus Tag | PA3968 |
| Description | probable pseudouridine synthase |
| Strain | Pseudomonas stutzeri ATCC 17588 = LMG 11199 |
| GI | 339495755 |
| Locus Tag | PSTAB_3678 |
| Description | pseudouridine synthase |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83645148 |
| Locus Tag | HCH_02335 |
| Description | 16S rRNA uridine-516 pseudouridylate synthase-like protein |