| Strain | Pseudomonas putida KT2440 |
| GI | 26988353 |
| Locus Tag | PP_1621 |
| Description | protein-L-isoaspartate O-methyltransferase |
| Strain | Pseudomonas fluorescens SBW25 |
| GI | 229588832 |
| Locus Tag | PFLU1300 |
| Description | protein-L-isoaspartate O-methyltransferase |
| Strain | Pseudomonas stutzeri RCH2 |
| GI | 431927910 |
| Locus Tag | Psest_2809 |
| Description | protein-L-isoaspartate and D-aspartate O-methyltransferase |