| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15596130 |
| Locus Tag | PA0933 |
| Description | probable RNA methyltransferase |
| Strain | Pseudomonas protegens CHA0 |
| GI | 501681953 |
| Locus Tag | PFLCHA0_c45200 |
| Description | 23S rRNA (uracil-5-)-methyltransferase RumA |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83644637 |
| Locus Tag | HCH_01806 |
| Description | 23S rRNA 5-methyluridine methyltransferase |