| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15599750 |
| Locus Tag | PA4554 |
| Description | type 4 fimbrial biogenesis protein PilY1 |
| Strain | Pseudomonas mendocina NK-01 |
| GI | 330501960 |
| Locus Tag | MDS_1046 |
| Description | putative type IV fimbrial biogenesis protein PilY1 |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83648568 |
| Locus Tag | HCH_05927 |
| Description | Tfp pilus assembly protein, tip-associated adhesin PilY1 |