摘要:
An L-amino acid is produced by culturing a bacterium of the Enterobacteriaceae family which has an L-amino acid-producing ability in a medium containing fatty acids as the carbon source, particularly fatty acids which have been subjected to emulsification or homogenization, to thereby produce and accumulate the L-amino acid in a culture medium; and collecting the L-amino acid from the culture medium.
摘要:
An L-amino acid is produced by culturing a bacterium of the Enterobacteriaceae family which has an L-amino acid-producing ability in a medium containing fatty acids as the carbon source, particularly fatty acids which have been subjected to emulsification or homogenization, to thereby produce and accumulate the L-amino acid in a culture medium; and collecting the L-amino acid from the culture medium.
摘要:
A microorganism is cultured in a medium, and is able to produce one or two or more kinds of L-amino acids including L-glutamic acid, L-glutamine, L-proline, L-ornithine, L-citrulline and L-arginine, and is modified to increase α-ketoglutarate synthase activity. The L-amino acids are collected from the medium or the cells.
摘要:
A microorganism is cultured in a medium, and is able to produce one or two or more kinds of L-amino acids including L-glutamic acid, L-glutamine, L-proline, L-ornithine, L-citrulline and L-arginine, and is modified to increase α-ketoglutarate synthase activity. The L-amino acids are collected from the medium or the cells.
摘要:
A microorganism is provided which has an ability to produce an L-amino acid such as L-lysine, L-tryptophan, L-phenylalanine, L-valine, L-leucine, L-isoleucine and L-serine, and has been modified to increase the activity of pyruvate synthase or pyruvate:NADP+ oxidoreductase. This microorganism is cultured in a medium containing ethanol or an aliphatic acid as the carbon source to produce and accumulate the L-amino acid in the medium or cells, and the L-amino acid is collected from the medium or the cells.
摘要:
An organic acid is produced by allowing a bacterium which has an ability to produce an organic acid and has been modified so that expression of yidE gene is enhanced, or a product obtained by processing the bacterium, to act on an organic raw material in a reaction mixture containing carbonate ions, bicarbonate ions, or carbon dioxide gas to produce the organic acid, and collecting the organic acid.
摘要:
An L-amino acid is produced by culturing a microorganism of the family Enterobacteriaceae which has the ability to produce an L-amino acid and which has been modified so as to increase the expression of the evgA gene, the gadE gene, and/or the ydeO gene. These genes encode a transcription factor involved in the EvgAS two-component system regulon. The culture takes place in a medium, and the L-amino acid is collected from the medium or cells.
摘要:
The present invention provides novel polypeptides and polynucleotides useful as biotechnological tools, specifically identified in a coryneform bacterium Corynebacterium glutamicum ssp. lactofermentum and methods of producing substances in organisms having enhanced or attenuated expression of these polypeptides and/or polynucleotides.
摘要:
An acidic substance having a carboxyl group is produced by culturing in a medium a microorganism which has been modified to enhance expression of the ybjL gene, and collecting the acidic substance having a carboxyl group from the medium.
摘要:
The present invention provides novel polypeptides and polynucleotides useful as biotechnological tools, specifically identified in a coryneform bacterium Corynebacterium glutamicum ssp. lactofermentum and methods of producing substances in organisms having enhanced or attenuated expression of these polypeptides and/or polynucleotides.