| Strain | Pseudomonas fluorescens Pf0-1 | 
| GI | 77456332 | 
| Locus Tag | Pfl01_0104 | 
| Description | tryptophan synthase subunit alpha | 
| Strain | Pseudomonas putida HB3267 | 
| GI | 431800106 | 
| Locus Tag | B479_00740 | 
| Description | tryptophan synthase subunit alpha | 
| Strain | Pseudomonas aeruginosa UCBPP-PA14 | 
| GI | 116053756 | 
| Locus Tag | PA14_00440 | 
| Description | tryptophan synthase subunit alpha |