Abstract:
The invention relates to a novel method of modifying the genome of gram-positive bacteria, to said bacteria and to novel vectors. The invention especially relates to a method of modifying Corynebacteria or Brevibacteria using a novel marker gene that has a conditionally negative dominant effect.
Abstract:
Isolated nucleic acid molecules, designated SMP nucleic acid molecules, which encode novel SMP proteins from Corynebacterium glutamicum are described. The invention also provides antisense nucleic acid molecules, recombinant expression vectors containing SMP nucleic acid molecules, and host cells into which the expression vectors have been introduced. The invention still further provides isolated SMP proteins, mutated SMP proteins, fusion proteins, antigenic peptides and methods for the improvement of production of a desired compound from C. glutamicum based on genetic engineering of SMP genes in this organism.
Abstract:
The present invention pertains to improved microorganisms and methods for the production of methionine and other sulfur containing fine chemicals using the metl gene from Bacillus subtilis or a gene related to metI. In some embodiments of the present invention, the metI gene or another gene is integrated in a fashion that allows for co-production of a water soluble compound such as methionine or other amino acid and a caortenoid compound.
Abstract:
The invention relates to methods for the production by fermentation of sulphur-containing fine chemicals, in particular L-methionine, using bacteria in which a nucleic acid sequence coding for a methionine synthase gene (metF) is expressed.
Abstract:
The invention relates to novel nucleic acid molecules, the use thereof in the construction of bio-engineering improved microorganisms and methods for the production of fine chemicals, especially amino acids with the aid of said bio-engineered improved microorganisms.
Abstract:
The invention relates to a method for producing corynebacteria that contain one or more modified genomic sequences, characterized by using a vector that does not replicate in corynebacteria and whose nucleic acid is not recognized as foreign by the corynebacteria.
Abstract:
Isolated nucleic acid molecules, designated PTS nucleic acid molecules, which encode novel PTS proteins from Corynebacterium glutamicum are described. The invention also provides antisense nucleic acid molecules, recombinant expression vectors containing PTS nucleic acid molecules, and host cells into which the expression vectors have been introduced. The invention still further provides isolated PTS proteins, mutated PTS proteins, fusion proteins, antigenic peptides and methods for the improvement of production of a desired compound from C. glutamicum based on genetic engineering of PTS genes in this organism.
Abstract:
The present invention relates to microorganisms and processes for the efficient preparation of L-amino acids such as L-methionine. In particular, the present invention relates to microorganisms and processes in which the formation and/or accumulation of homolanthionine in the methionine pathway is reduced and/or prevented.
Abstract:
The invention relates to the use of nucleic acid sequences for regulating gene transcription and expression, said novel promoters and expression units, methods for modifying or inducing the transcription rate and/or expression rate of genes, expression cassettes containing said expression units, genetically modified microorganisms with a modified or induced transcription rate and/or expression rate, and methods for producing biosynthetic products by cultivating the genetically modified microorganisms.
Abstract:
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., lactate dehydrogenase. In a preferred embodiment, the invention provides methods of increasing the production of lysine in Corynebacterium glutamicum by way of the expression of lactate dehydrogenase 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.