摘要:
The present invention is directed to a method utilizing a microorganism with reduced isocitrate dehydrogenase activity for the production of methionine.
摘要:
The present invention relates to methods for the production of microorganisms with increased efficiency for methionine synthesis, microorganisms with increased efficiency for methionine synthesis, and methods for determining the optimal metabolic flux for organisms with respect to methionine synthesis.
摘要:
The present invention features methods of increasing the production of a fine chemical, e.g., lysine from a microorganism, e.g., Corynebacterium by way of deregulating an enzyme encoding gene, i. e., glycerol kinase. In a preferred embodiment, the invention provides methods of increasing the production of lysine in Corynebacterium glutamicum by way of increasing the expression of glycerol kinase activity. The invention also provides a novel process for the production of lysine by way of regulating carbon flux towards oxaloacetate (OAA). In a preferred embodiment, the invention provides methods for the production of lysine by way of utilizing fructose or sucrose as a carbon source.
摘要:
The invention relates to novel nucleic acid molecules, to the use thereof for constructing genetically improved microorganisms and to methods for preparing fine chemicals, in particular amino acids, with the aid of said genetically improved microorganisms.
摘要:
The invention relates to novel nucleic acid molecules, to the use thereof for constructing genetically improved microorganisms and to methods for preparing fine chemicals, in particular amino acids, with the aid of said genetically improved microorganisms.
摘要:
The invention relates to novel nucleic acid molecules, to the use thereof for constructing genetically improved microorganisms and to methods for preparing fine chemicals, in particular amino acids, with the aid of said genetically improved microorganisms.
摘要:
The present invention relates to the use of nucleic acid sequences for regulating the transcription and expression of genes, the novel promoters and expression units themselves, methods for altering or causing the transcription rate and/or expression rate of genes, expression cassettes comprising the expression units, genetically modified microorganisms with altered or caused transcription rate and/or expression rate, and methods for preparing biosynthetic products by cultivating the genetically modified microorganisms.
摘要:
Process for the production of -lysine by constructing a recombinant microorganism which has a deregulated lysine 2,3-aminomutase gene and at least one deregulated gene selected from the group (i) which consists of aspartokinase, aspartatesemialdehyde dehydrogenase, dihydrodipicolinate synthase, dihydrodipicolinate reductase, tetrahydrodipicolinate succinylase, succinyl-amino-ketopimelate transaminase, succinyl-diamino-pimelate desuccinylase, diaminopimelate epimerase, diamino-pimelate dehydrogenase, arginyl-tRNA synthetase, diaminopimelate decarboxylase, pyruvate carboxylase, phosphoenolpyruvate carboxylase, glucose-6-phosphate dehydrogenase, transketolase, transaldolase, 6-phosphogluconolactonase, fructose 1,6-biphosphatase, homoserine dehydrogenase, phophoenolpyruvate carboxykinase, succinyl-CoA synthetase, methylmalonyl-CoA mutase, provided that if aspartokinase is deregulated as gene (i) at least a second gene (i) other than aspartokinase has to be deregulated, and cultivating said microorganism.
摘要:
The present invention relates to the use of nucleic acid sequences for regulating the transcription and expression of genes, the novel promoters and expression units themselves, methods for altering or causing the transcription rate and/or expression rate of genes, expression cassettes comprising the expression units, genetically modified microorganisms with altered or caused transcription rate and/or expression rate, and methods for preparing biosynthetic products by cultivating the genetically modified microorganisms.
摘要:
The invention relates to methods for the production of sulfur-containing fine chemicals, in particular L-methionine, by fermentation using bacteria in which a nucleotide sequence encoding an S-adenosylmethionine synthase (metK) gene is expressed.