| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15595384 |
| Locus Tag | PA0186 |
| Description | probable binding protein component of ABC transporter |
| Strain | Pseudomonas denitrificans ATCC 13867 |
| GI | 472323345 |
| Locus Tag | H681_00845 |
| Description | sulfate ester transport system substrate-binding protein |
| Strain | Pseudomonas protegens Pf-5 |
| GI | 70733714 |
| Locus Tag | PFL_0208 |
| Description | sulfate ester ABC transporter periplasmic sulfate ester-binding protein AtsR |