A method for producing an aromatic L-amino acid using a bacterium of the genus Eshcerichia with attenuated expression of any of the cynT, cynS, cynX or cynR genes or a combination thereof

摘要

The present invention provides a method for producing an L-amino acid using a bacterium of the Enterobacteriaceae family, particularly a bacterium belonging to genus Escherichia or Pantoea, which has been modified to attenuate expression of one or more genes selected from the group consisting of cynT, cynS, cynX and cynR.