Cloning and characterization of the lactate-specific inducible gene KlCYB2, encoding the cytochrome b(2) of Kluyveromyces lactis.

Abstract excerpt

In yeast the utilization of lactate requires two enzymes, the D and L-lactate ferricytochrome c oxidoreductase (D and L-LCR), which stereospecifically oxidize D- and L-lactate to pyruvate. These enzymes are nuclearly encoded and localized in mitochondria. In the yeast Kluyveromyces lactis, a mutant devoid of D- and L-LCR activities and unable to grow on racemic lactate was isolated. Transformation of the mutant...

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