Streptomyces clavuligerus
The invention relates to strains of Streptomyces clavuligerus comprising two point mutations in the promoter region of the ccaR gene and an amino acid substitution in the protein product ccaR. The mutations in the promoter are a C to T point mutation at position 48 of SEQ ID NO 1 and G to A at posit...
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Zusammenfassung: | The invention relates to strains of Streptomyces clavuligerus comprising two point mutations in the promoter region of the ccaR gene and an amino acid substitution in the protein product ccaR. The mutations in the promoter are a C to T point mutation at position 48 of SEQ ID NO 1 and G to A at position 143 of SEQ ID NO 1. The mutation in the protein is an arginine to tryptophan substitution at position 32 of SEQ ID NO 2. Also described are methods for producing clavulanic acid using the strain. |
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