TABLE 3.
Specific activities of the quinone-dependent l-lactate dehydrogenase in C. glutamicum strains WT(pVWEx1), WTΔlldR(pVWEx1), and WTΔlldR(pVWEx1-lldR)
| Carbon source(s) | Sp act of quinone-dependent l-lactate dehydrogenase LldD (μmol min−1 mg−1)a
|
||
|---|---|---|---|
| WT(pVWEx1) | WTΔlldR(pVWEx1) | WTΔlldR(pVWEx1-lldR) | |
| l-Lactate | 0.14 | 0.08 | <0.01 |
| Glucose + l-lactate | 0.15 | 0.12 | 0.01 |
| Glucose | 0.01 | 0.13 | 0.01 |
| Pyruvate | 0.01 | 0.10 | 0.01 |
| Acetate | 0.01 | 0.16 | <0.01 |
| Ribose | 0.02 | 0.14 | <0.01 |
a
All data are mean values of at least two determinations for at least two independent cultures with errors of <14%. The cultures contained 1 mM IPTG.