| Strain | Pseudomonas aeruginosa UCBPP-PA14 |
| GI | 116054083 |
| Locus Tag | PA14_04650 |
| Description | protease PfpI |
| Strain | Pseudomonas putida HB3267 |
| GI | 431804950 |
| Locus Tag | B479_25105 |
| Description | PfpI family intracellular peptidase |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83645817 |
| Locus Tag | HCH_03061 |
| Description | putative intracellular protease/amidase |