| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15596535 |
| Locus Tag | PA1338 |
| Description | gamma-glutamyltranspeptidase precursor |
| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15595558 |
| Locus Tag | PA0361 |
| Description | probable gamma-glutamyltranspeptidase precursor |
| Strain | Pseudomonas stutzeri DSM 10701 |
| GI | 397687582 |
| Locus Tag | PSJM300_12395 |
| Description | gamma-glutamyltransferase |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83649412 |
| Locus Tag | HCH_06798 |
| Description | gamma-glutamyltranspeptidase |