| Strain | Pseudomonas aeruginosa M18 |
| GI | 386060021 |
| Locus Tag | PAM18_3960 |
| Description | flagellar basal body P-ring protein |
| Strain | Pseudomonas stutzeri ATCC 17588 = LMG 11199 |
| GI | 339493415 |
| Locus Tag | PSTAB_1338 |
| Description | flagellar basal body P-ring protein |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83647169 |
| Locus Tag | HCH_04475 |
| Description | flagellar basal body P-ring protein |