| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15595961 |
| Locus Tag | PA0764 |
| Description | negative regulator for alginate biosynthesis MucB |
| Strain | Pseudomonas brassicacearum subsp. brassicacearum NFM421 |
| GI | 330808071 |
| Locus Tag | PSEBR_a1340 |
| Description | negative regulator for alginate biosynthesis |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83644626 |
| Locus Tag | HCH_01792 |
| Description | sigma factor algU negative regulatory protein MucB |