| Strain | Pseudomonas aeruginosa UCBPP-PA14 |
| GI | 116053757 |
| Locus Tag | PA14_00450 |
| Description | tryptophan synthase subunit beta |
| Strain | Pseudomonas putida BIRD-1 |
| GI | 386009748 |
| Locus Tag | PPUBIRD1_0111 |
| Description | protein TrpB |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83645233 |
| Locus Tag | HCH_02436 |
| Description | tryptophan synthase subunit beta |