Table 4.
Predicted R. sphaeroides ABC transporter operons tested for substrate specificity using Biolog PM
| Operons | Identified substratea |
|---|---|
| RSP_0200-1, RSP_6101 |
Ribitol |
| RSP_0342-5 |
Methyl D-lactate |
| RSP_0346-9 |
Asparagine |
| RSP_1442-5 |
D-serine |
| RSP_2208-11 |
Uridine |
| RSP_0644-6 |
ND |
| RSP_2596-8 |
ND |
| RSP_2809-11 |
ND |
| RSP_3166-8 |
ND |
| RSP_3500-3 |
ND |
| RSP_3557-60 | ND |
aND - Not Determined. Specific substrates for these transporters could not be determined from PM assay and the analysis of mutants lacking single genes in each of these predicted operons (see text).