METHOD FOR THE FERMENTATIVE PRODUCTION OF L-LYSINE USING C. GLUTAMICUM STRAINS EXPRESSING MODIFIED GLUCONATE REPRESSOR PROTEINS GNTR1 AND GNTR2

METHOD FOR THE FERMENTATIVE PRODUCTION OF L-LYSINE USING C. GLUTAMICUM STRAINS EXPRESSING MODIFIED GLUCONATE REPRESSOR PROTEINS GNTR1 AND GNTR2

C. glutamicum strains express modified gluconate repressor proteins GntR1 and GntR2. The C. glutamicum strains have an increased ability to produce L-lysine compared with an ability of a wildtype strain. The gluconate repressor protein GntR1 includes an amino acid sequence of SEQ ID NO: 9, where the...

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Bibliographische Detailangaben
Hauptverfasser: Voß, Kornelia, Jankowitsch, Frank, Bathe, Brigitte, Jerrentrup, Silke
Format: Patent
Sprache:eng
Schlagworte:
BEER
BIOCHEMISTRY
CHEMISTRY
COMPOSITIONS THEREOF
CULTURE MEDIA
ENZYMOLOGY
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE
METALLURGY
MICROBIOLOGY
MICROORGANISMS OR ENZYMES
MUTATION OR GENETIC ENGINEERING
ORGANIC CHEMISTRY
PEPTIDES
PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS
SPIRITS
VINEGAR
WINE
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Zusammenfassung:C. glutamicum strains express modified gluconate repressor proteins GntR1 and GntR2. The C. glutamicum strains have an increased ability to produce L-lysine compared with an ability of a wildtype strain. The gluconate repressor protein GntR1 includes an amino acid sequence of SEQ ID NO: 9, where the amino acid Arg in position 102 is replaced by the amino acid Glu. The gluconate repressor protein GntR2 includes SEQ ID NO: 10, and its activity is attenuated compared to the activity of the GntR2 repressor protein of the wild-type strain. A method is developed for the fermentative production of L-lysine using such C. glutamicum strains.