| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15598055 |
| Locus Tag | PA2859 |
| Description | transcription elongation factor GreB |
| Strain | Pseudomonas mendocina NK-01 |
| GI | 330503584 |
| Locus Tag | MDS_2670 |
| Description | transcription elongation factor GreB |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83643478 |
| Locus Tag | HCH_00585 |
| Description | transcription elongation factor GreB |