| Strain | Pseudomonas protegens CHA0 |
| GI | 501681953 |
| Locus Tag | PFLCHA0_c45200 |
| Description | 23S rRNA (uracil-5-)-methyltransferase RumA |
| Strain | Pseudomonas denitrificans ATCC 13867 |
| GI | 472324751 |
| Locus Tag | H681_07905 |
| Description | 23S rRNA m(5)U1939 methyltransferase |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83644637 |
| Locus Tag | HCH_01806 |
| Description | 23S rRNA 5-methyluridine methyltransferase |