| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 28867968 |
| Locus Tag | PSPTO_0740 |
| Description | smtA protein |
| Strain | Pseudomonas stutzeri ATCC 17588 = LMG 11199 |
| GI | 339492963 |
| Locus Tag | PSTAB_0886 |
| Description | methyltransferase |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83645046 |
| Locus Tag | HCH_02229 |
| Description | SAM-dependent methyltransferase |