摘要:
The invention is directed to a process for producing an L-amino acid by fermenting a microorganism, wherein the expression of a lysC gene encoding a feed back resistant aspartokinase is enhanced by cloning a strong promoter/ribosome binding sequence.
摘要:
The invention relates to an isolated polynucleotide having a polynucleotide sequence which codes for the sigC gene from Corynebacterium glutamicum, and a host-vector system having a coryneform host bacterium, such as Corynebacterium glutamicum, and a vector which carries at least the sigC gene according to SEQ ID No 1, and the use of polynucleotides which comprise the sequences according to the invention as hybridization probes.
摘要翻译:本发明涉及具有编码来自谷氨酸棒杆菌的sigC基因的多核苷酸序列的分离的多核苷酸,以及具有棒状杆菌宿主细菌如谷氨酸棒杆菌的宿主 - 载体系统,以及至少携带至少sigC基因的载体 SEQ ID No 1,以及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:
An isolated polynucleotide which contains a polynucleotide sequence selected from the group comprising: (a) a polynucleotide which is at least 70% identical to a polynucleotide coding for a polypeptide containing the amino acid sequence of SEQ ID No. 2, (b) a polynucleotide coding 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) a polynucleotide which is complementary to the polynucleotides of (a) or (b), and (d) a polynucleotide containing at least 15 consecutive nucleotides of the polynucleotide sequence of (a), (b) or (c), and a fermentation process for the preparation of L-amino acids using corynebacteria in which at least the pknB gene is amplified, and to the use, as hybridization probes, of polynucleotides containing the sequences according to the invention.
摘要翻译:一种分离的多核苷酸,其含有选自以下的多核苷酸序列:(a)与编码含有SEQ ID No.2的氨基酸序列的多肽的多核苷酸至少70%的多核苷酸,(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,(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,以及使用其中至少pknB基因被扩增的棒状杆菌制备L-氨基酸的发酵方法 以及使用含有本发明序列的多核苷酸作为杂交探针。
摘要:
The invention relates to alleles of the sigA gene from coryneform bacteria which code for sigma factors A and a process for the fermentative preparation of L-lysine using bacteria which contain these alleles.
摘要:
The invention relates to an isolated polynucleotide having promoter activity, a variant of the promoter of the gap gene coding for glyceraldehyde-3-phosphate dehydrogenase; and to a microorganism which produces and/or secretes a fine chemical, the microorganism including the isolated polynucleotide having promoter activity, which enables various genes to be overexpressed in comparison with the particular starting strain; and to a process for preparing fine chemicals using the microorganism.
摘要:
The invention relates to mutants and alleles of the coryneform bacterium mqo gene which encodes malate quinone oxidoreductases which contain any amino acid apart from L-serine at position 111, or a comparable position, in the amino acid sequence, and to processes for fermentatively preparing amino acids, preferably L-lysine, L-tryptophan and L-proline, using bacteria which comprise these alleles.
摘要:
The invention relates to mutated variants of the proB gene from coryneform bacteria, which encode γ-glutamyl kinase, and to processes for fermentative production of L-proline using bacteria which contain this mutation.
摘要:
The invention relates to mutants and alleles of the coryneform bacterium mqo gene which encodes malate quinone oxidoreductases which contain any amino acid apart from L-serine at position 111, or a comparable position, in the amino acid sequence, and to processes for fermentatively preparing amino acids, preferably L-lysine, L-tryptophan and L-proline, using bacteria which comprise these alleles.
摘要:
The invention relates to alleles of the glk gene from coryneform bacteria coding for glucokinases, and to processes for the production of L-lysine by fermentation using bacteria containing such alleles.
摘要:
The invention relates to an isolated polynucleotide having promoter activity, a variant of the promoter of the gap gene coding for glyceraldehyde-3-phosphate dehydrogenase; and to a microorganism which produces and/or secretes a fine chemical, the microorganism including the isolated polynucleotide having promoter activity, which enables various genes to be overexpressed in comparison with the particular starting strain; and to a process for preparing fine chemicals using the microorganism.