| Strain | Pseudomonas syringae pv. phaseolicola 1448A |
| GI | 71733716 |
| Locus Tag | PSPPH_0035 |
| Description | tryptophan synthase subunit alpha |
| Strain | Pseudomonas putida HB3267 |
| GI | 431800106 |
| Locus Tag | B479_00740 |
| Description | tryptophan synthase subunit alpha |
| Strain | Azotobacter vinelandii CA6 |
| GI | 482898970 |
| Locus Tag | AvCA6_02130 |
| Description | tryptophan synthase subunit alpha |