摘要:
The invention relates to a process for the preparation of L-amino acids. The process involves fermenting an L-amino acid producing coryneform bacteria in a culture medium, concentrating L-amino acid in the culture medium or in the cells of the bacteria, and isolating the L-amino acid produced. The bacteria has an amplified gene encoding the Zwischenferment protein.
摘要:
The invention is directed to DNA sequences from coryneform bacteria which encode a protein having transaldolase enzymatic activity. The invention also encompasses methods for the fermentative production of L-amino acids using bacteria in which the gene encoding transaldolase is amplified.
摘要:
L-lysine-producing strains of corynebacteria with enhanced lysE gene (lysine export carrier gene), in which strains additional genes chosen from the group comprising the dapA gene (dihydrodipicolinate synthase gene), the lysC gene (aspartate kinase gene), the dapB gene (dihydrodipicolinate reductase gene) and the pyc gene, but especially the dapA gene and the lysC gene (aspartate kinase gene), are enhanced and, in particular, over-expressed, and to a process for the preparation of L-lysine.
摘要:
The invention relates to isolated polynucleotides comprising a polynucleotide sequence chosen from the group consisting of a) polynucleotide which is identical to the extent of at least 70% to a polynucleotide which codes for a polypeptide which comprises the amino acid sequence of SEQ ID No. 2, b) polynucleotide which codes for a polypeptide which comprises an amino acid sequence which is identical to the extent of at least 70% to the amino acid sequence of SEQ ID No. 2, c) polynucleotide which is complementary to the polynucleotides of a) or b), and d) polynucleotide comprising at least 15 successive nucleotides of the polynucleotide sequence of a), b) or c), and a process for the fermentative preparation of L-amino acids using coryneform bacteria in which at least the citA gene is present in attenuated form, and the use of polynucleotides which comprise the sequences according to the invention as hybridization probes.
摘要翻译:本发明涉及分离的多核苷酸,其包含多核苷酸序列,所述多核苷酸序列选自a)多核苷酸,其与编码包含SEQ ID No.2的氨基酸序列的多肽的多核苷酸的程度相同至少70% b)编码多肽的多核苷酸,其包含与SEQ ID No.2的氨基酸序列至少70%相同的氨基酸序列,c)与a)的多核苷酸互补的多核苷酸, 或b),和d)包含a),b)或c)的多核苷酸序列的至少15个连续核苷酸的多核苷酸,以及使用棒状细菌发酵制备L-氨基酸的方法,其中至少有citA基因 以减毒形式存在,并且使用包含根据本发明的序列的多核苷酸作为杂交探针。
摘要:
The invention relates to L-lysine-producing strains of corynebacteria with enhanced lysE gene (lysine export carrier gene), in which strains additional genes chosen from the group comprising the dapA gene (dihydrodipicolinate synthase gene), the lysC gene (aspartate kinase gene), the dapB gene (dihydrodipicolinate reductase gene) and the pyc gene, but especially the dapA gene and the lysC gene (aspartate kinase gene), are enhanced and, in particular, over-expressed, and to a process for the preparation of L-lysine.
摘要:
The present invention relates to an isolated polynucleotide from Corynebacterium glutamicum comprising a polynucleotide sequence chosen from the group consisting of (a) a polynucleotide which is identical to the extent of at least 70% to a polynucleotide which codes for a polypeptide which comprises the amino acid sequence of SEQ ID NO: 2; (b) a polynucleotide which codes for a polypeptide which comprises an amino acid sequence which is identical to the extent of at least 70% to the amino acid sequence of SEQ ID NO: 2; (c) a polynucleotide which is complementary to the polynucleotides of (a) or (b); and (d) a polynucleotide comprising at least 15 successive nucleotides of the polynucleotide sequence of (a), (b), or (c), and a process for the fermentative preparation of L-amino acids using coryneform bacteria in which at least the sigE gene is present in enhanced form, and the use of polynucleotides which comprise the sequence according to the invention as hybridization probes.
摘要翻译:本发明涉及来自谷氨酸棒杆菌的分离的多核苷酸,其包含多核苷酸序列,所述多核苷酸序列选自(a)与编码包含氨基酸的多肽的多核苷酸的至少70%的程度相同的多核苷酸 SEQ ID NO:2的序列; (b)编码多肽的多核苷酸,其包含与SEQ ID NO:2的氨基酸序列至少70%的程度相同的氨基酸序列; (c)与(a)或(b)的多核苷酸互补的多核苷酸; 和(d)包含(a),(b)或(c)的多核苷酸序列的至少15个连续核苷酸的多核苷酸,以及使用棒状细菌发酵制备L-氨基酸的方法,其中至少 sigE基因以增强形式存在,并且使用包含根据本发明的序列的多核苷酸作为杂交探针。
摘要:
The invention relates to an isolated polynucleotide containing a polynucleotide sequence selected from the group comprising a) polynucleotide which is at least 70% identical to a polynucleotide which codes for a polypeptide containing the amino acid sequence of SEQ ID no. 2, b) polynucleotide which codes for a polypeptide containing an amino acid sequence which is at least 70% identical to the amino acid sequence of SEQ ID no.2, c) polynucleotide which is complementary to the polynucleotides of a) or b), and d) polynucleotide containing at least 15 successive nucleotides of the polynucleotide sequence of a), b) or c), and a process for the fermentative production of L-amino acids with enhancement of the ptsH gene coding for component H of the phosphotransferase system, and the use of the above polynucleotides as primer or hybridisation probe.
摘要翻译:本发明涉及含有多核苷酸序列的分离的多核苷酸,所述多核苷酸序列选自包含a)多核苷酸的多核苷酸,所述多核苷酸与编码含有SEQ ID NO:1的氨基酸序列的多肽的多核苷酸具有至少70%的同一性。 2,b)编码含有与SEQ ID No.2的氨基酸序列至少70%相同的氨基酸序列的多肽的多核苷酸,c)与a)或b)的多核苷酸互补的多核苷酸, 和d)多核苷酸,其包含a),b)或c)的多核苷酸序列的至少15个连续核苷酸,以及用于增强编码磷酸转移酶系统的组分H的ptsH基因的L-氨基酸的发酵生产的方法, 以及使用上述多核苷酸作为引物或杂交探针。
摘要:
L-lysine-producing strains of corynebacteria with enhanced lysE gene (lysine export carrier gene), in which strains additional genes chosen from the group comprising the dapA gene (dihydrodipicolinate synthase gene), the lysC gene (aspartate kinase gene), the dapB gene (dihydrodipicolinate reductase gene) and the pyc gene, but especially the dapA gene and the lysC gene (aspartate kinase gene), are enhanced and, in particular, over-expressed, and a process for the preparation of L-lysine.
摘要:
The invention relates to an isolated polynucleotide from coryneform bacteria, comprising a polynucleotide sequence chosen from the group consisting of a) polynucleotide which is identical to the extent of at least 70% to a polynucleotide which codes for a polypeptide which comprises the amino acid sequences of SEQ ID NO. 2 or SEQ ID NO. 4, b) polynucleotide which codes for a polypeptide which comprises an amino acid sequence which is identical to the extent of at least 70% to the amino acid sequences of SEQ ID NO. 2 or SEQ ID NO. 4 c) polynucleotide which is complementary to the polynucleotides of a) or b) and d) polynucleotide comprising at least 15 successive nucleotides of the polynucleotide sequences of a), b) or c) and a process for the preparation of L-amino acids, which comprises carrying out the following steps: a) fermentation of the desired L-amino acid-producing bacteria in which at least the tal gene is amplified, b) concentration of the desired product in the medium or in the cells of the bacteria and c) isolation of the L-amino acid.
摘要翻译:本发明涉及来自棒状细菌的分离的多核苷酸,其包含选自以下的多核苷酸序列:a)与编码多肽的多核苷酸的程度相同的多核苷酸,所述多核苷酸包含氨基酸序列 SEQ ID NO: 2或SEQ ID NO。 4,b)编码多肽的多核苷酸,其包含与SEQ ID NO:1的氨基酸序列至少70%的程度相同的氨基酸序列。 2或SEQ ID NO。 4)与a)或b)的多核苷酸互补的多核苷酸和d)包含a),b)或c)的多核苷酸序列的至少15个连续核苷酸的多核苷酸,以及制备L-氨基酸的方法 其包括进行以下步骤:a)发酵所需的L-氨基酸生产细菌,其中至少有tal基因被扩增,b)所需产物在培养基中或细菌中的浓度,以及 c)分离L-氨基酸。
摘要:
The invention relates to coryneform bacteria which, instead of the singular copy of an open reading frame (ORF), gene or allele naturally present at the particular desired site (locus), have at least two copies of the open reading frame (ORF), gene or allele in question, preferably in tandem arrangement, and optionally at least a third copy of the open reading frame (ORF), gene or allele in question at a further gene site, and processes for the preparation of chemical compounds by fermentation of these bacteria.