摘要:
The present invention relates to polynucleotides that encode proteins having OpcA enzymatic activity. These polynucleotides can be used for increasing lysine biosynthesis in Coryneform glutamicum.
摘要:
The invention provides a process for the fermentative preparation of L-amino acids using coryneform bacteria, in which the subunit carrying the biotin-carboxyl carrier protein domain and the biotin-carboxylase domain of the nucleotide sequence encoding the enzyme acetyl-CoA carboxylase (accBC gene) is amplified, in particular is overexpressed.
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 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.
摘要:
The invention relates to coryneform bacteria which have, in addition to at least one copy, present at the natural site (locus), of an open reading frame (ORF), gene or allele which codes for the synthesis of a protein or an RNA, in each case a second, optionally third or fourth copy of this open reading frame (ORF), gene or allele at in each case a second, optionally third or fourth site in a form integrated into the chromosome and processes for the preparation of chemical compounds by fermentation of these bacteria.
摘要:
The invention relates to coryneform bacteria which have, in addition to at least one copy, present at the natural site (locus), of an open reading frame (ORF), gene or allele which codes for the synthesis of a protein or an RNA, in each case a second, optionally third or fourth copy of this open reading frame (ORF), gene or allele at in each case a second, optionally third or fourth site in a form integrated into the chromosome and processes for the preparation of chemical compounds by fermentation of these bacteria.
摘要:
The invention relates to isolated nucleotide sequences from Coryneform bacteria which code for the pck gene encoding the enzyme phosphoenol pyruvate carboxykinase (PEP carboxykinase). The invention also relates a process for the fermentative preparation of L-amino acids, in particular L-lysine, L-threonine, and L-glutamate by attenuation of the pck gene.
摘要:
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 sequence of SEQ ID No. 2, b) polynucleotide which is identical to the extent of at least 70% to a polynucleotide which codes for the polypeptide which is expressed by the pck gene contained on vector pK19mobsacB&Dgr;pck in the deposited E.coli strain DSM 13047, c) 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, d) polynucleotide which is complementary to the polynucleotides of a), b) or c) and e) polynucleotide comprising at least 15 successive bases of the polynucleotide sequence of a), b), c) or d).
摘要翻译:来自棒状细菌的分离的多核苷酸,包含选自以下的多核苷酸序列:a)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的多核苷酸, b)与编码由沉积的大肠杆菌菌株DSM 13047中载体pK19mobsacBDELTApck上包含的pck基因表达的多肽的多核苷酸的程度至少70%相同的多核苷酸,c)编码 多肽,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,d)与a),b)或c)和ee)的多核苷酸互补的多核苷酸, 包含a),b),c)或d)的多核苷酸序列的至少15个连续碱基的多核苷酸。
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:
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。