| Strain | Pseudomonas putida F1 |
| GI | 148549104 |
| Locus Tag | Pput_3898 |
| Description | helix-hairpin-helix repeat-containing competence protein ComEA |
| Strain | Pseudomonas denitrificans ATCC 13867 |
| GI | 472326526 |
| Locus Tag | H681_16820 |
| Description | ComE operon protein 1 |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83645183 |
| Locus Tag | HCH_02375 |
| Description | DNA uptake protein and related DNA-binding protein |