| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15595234 |
| Locus Tag | PA0036 |
| Description | tryptophan synthase beta chain |
| Strain | Pseudomonas protegens Pf-5 |
| GI | 70733550 |
| Locus Tag | PFL_0037 |
| Description | tryptophan synthase subunit beta |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83645233 |
| Locus Tag | HCH_02436 |
| Description | tryptophan synthase subunit beta |