| Strain | Pseudomonas syringae pv. syringae B728a |
| GI | 66047247 |
| Locus Tag | Psyr_4020 |
| Description | exonuclease I |
| Strain | Pseudomonas entomophila L48 |
| GI | 104780361 |
| Locus Tag | PSEEN1150 |
| Description | exonuclease I |
| Strain | Azotobacter vinelandii CA6 |
| GI | 482898844 |
| Locus Tag | AvCA6_38320 |
| Description | exonuclease I |