| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15595552 |
| Locus Tag | PA0355 |
| Description | protease PfpI |
| Strain | Pseudomonas stutzeri DSM 4166 |
| GI | 386022732 |
| Locus Tag | PSTAA_4160 |
| Description | protease PfpI |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83645817 |
| Locus Tag | HCH_03061 |
| Description | putative intracellular protease/amidase |