| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 28871983 |
| Locus Tag | PSPTO_4868 |
| Description | sensor histidine kinase/response regulator RetS |
| Strain | Pseudomonas fluorescens Pf0-1 |
| GI | 77456839 |
| Locus Tag | Pfl01_0611 |
| Description | periplasmic sensor hybrid histidine kinase |
| Strain | Pseudomonas aeruginosa 2192 |
| GI | 254244246 |
| Locus Tag | PA2G_05096 |
| Description | RetS (Regulator of Exopolysaccharide and Type III Secretion) |