| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15595961 |
| Locus Tag | PA0764 |
| Description | negative regulator for alginate biosynthesis MucB |
| Strain | Pseudomonas protegens Pf-5 |
| GI | 70728829 |
| Locus Tag | PFL_1450 |
| Description | sigma factor AlgU regulatory protein MucB |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83644626 |
| Locus Tag | HCH_01792 |
| Description | sigma factor algU negative regulatory protein MucB |