| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15596638 |
| Locus Tag | PA1441 |
| Description | putative flagellar hook-length control protein FliK |
| Strain | Pseudomonas stutzeri ATCC 17588 = LMG 11199 |
| GI | 339494642 |
| Locus Tag | PSTAB_2565 |
| Description | flagellar hook-length control protein FliK |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83647851 |
| Locus Tag | HCH_05183 |
| Description | flagellar hook-length control protein |