Zusammenfassung
Pyruvate dehydrogenase complex-deficient strains of Corynebacterium glutamicum produce L-valine from glucose only after depletion of the acetate required for growth. Here we show that inactivation of the DeoR-type transcriptional regulator SugR or replacement of acetate by ethanol already in course of the growth phase results in efficient L-valine production.
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