| Strain | Pseudomonas putida GB-1 |
| GI | 167032404 |
| Locus Tag | PputGB1_1392 |
| Description | helix-hairpin-helix repeat-containing competence protein ComEA |
| Strain | Pseudomonas aeruginosa M18 |
| GI | 386057889 |
| Locus Tag | PAM18_1823 |
| Description | putative competence protein |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83645183 |
| Locus Tag | HCH_02375 |
| Description | DNA uptake protein and related DNA-binding protein |