| Strain | Pseudomonas aeruginosa UCBPP-PA14 |
| GI | 116052560 |
| Locus Tag | PA14_58770 |
| Description | type 4 prepilin peptidase PilD |
| Strain | Pseudomonas brassicacearum subsp. brassicacearum NFM421 |
| GI | 330811789 |
| Locus Tag | PSEBR_a4828 |
| Description | type 4 prepilin-like protein |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83647944 |
| Locus Tag | HCH_05280 |
| Description | type II secretory pathway prepilin signal peptidase PulO and related peptidase |