| Strain | Pseudomonas putida F1 |
| GI | 148545720 |
| Locus Tag | Pput_0468 |
| Description | peptidase M23B |
| Strain | Pseudomonas stutzeri ATCC 17588 = LMG 11199 |
| GI | 339492730 |
| Locus Tag | PSTAB_0653 |
| Description | M24/M37 family peptidase |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83648876 |
| Locus Tag | HCH_06239 |
| Description | metalloendopeptidase-like membrane protein |