Patent ID: 7919284

Claim:
A method for producing an L-amino acid comprising: A) culturing a an Escherichia or a Pantoea bacterium in a medium to produce and accumulate an L-amino acid in the medium or the bacterium, and B) collecting the L-amino acid from the medium or bacterium, wherein the bacterium is able to produce the L-amino acid and has been modified so that the kdp system encoded by the kdp operon is enhanced, and wherein the kdp operon comprises the kdpA, kdpB, and kdpC genes, and wherein the kdpA gene encodes a protein comprising the amino acid sequence shown in SEQ ID NO: 8, the kdpB gene encodes a protein comprising the amino acid sequence shown in SEQ ID NO: 9, and the kdpC gene encodes a protein having the amino acid sequence shown in SEQ ID NO: 10, and wherein each of the protein can comprise substitutions, deletions, insertions or additions of one to five amino acids.