| Strain | Pseudomonas protegens Pf-5 |
| GI | 70732944 |
| Locus Tag | PFL_5656 |
| Description | multifunctional tRNA nucleotidyl transferase/2'3'-cyclic phosphodiesterase/2'nucleotidase/phosphatase |
| Strain | Pseudomonas putida NBRC 14164 |
| GI | 512683484 |
| Locus Tag | PP4_04270 |
| Description | CCA-adding enzyme |
| Strain | Pseudomonas aeruginosa 2192 |
| GI | 254243678 |
| Locus Tag | PA2G_04504 |
| Description | tRNA nucleotidyl transferase |