| Strain | Pseudomonas syringae pv. phaseolicola 1448A |
| GI | 71733230 |
| Locus Tag | PSPPH_4016 |
| Description | dicarboxylic acid transport protein |
| Strain | Pseudomonas putida DOT-T1E |
| GI | 397693005 |
| Locus Tag | T1E_0235 |
| Description | major facilitator superfamily metabolite/H |
| Strain | Azotobacter vinelandii CA6 |
| GI | 482900241 |
| Locus Tag | AvCA6_18040 |
| Description | dicarboxylate or citrate transporter (MFS superfamily) |