| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 28867532 |
| Locus Tag | PSPTO_0301 |
| Description | 4-aminobutyrate aminotransferase |
| Strain | Pseudomonas putida HB3267 |
| GI | 431800258 |
| Locus Tag | B479_01500 |
| Description | 4-aminobutyrate aminotransferase |
| Strain | Azotobacter vinelandii CA6 |
| GI | 482898032 |
| Locus Tag | AvCA6_46670 |
| Description | 4-aminobutyrate transaminase |