| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15595234 |
| Locus Tag | PA0036 |
| Description | tryptophan synthase beta chain |
| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 28867398 |
| Locus Tag | PSPTO_0158 |
| Description | tryptophan synthase subunit beta |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83645233 |
| Locus Tag | HCH_02436 |
| Description | tryptophan synthase subunit beta |