Patent ID: 8759042

Claim:
A process for producing an amino acid, which method comprises culturing a modified Escherichia coli microorganism in a medium to produce and accumulate the amino acid in the medium, and recovering the amino acid from the medium, wherein the amino acid is selected from the group consisting of L-ornithine, L-citrulline, and L-arginine, and wherein the modified Escherichia coli microorganism has a loss of a function of a CsrC RNA resulting from modifying a parental Escherichia coli microorganism which has an ability to produce and accumulate the amino acid in the medium when the parental Escherichia coli microorganism is cultured in the medium, by a deletion, substitution, or addition in the nucleotide sequence of SEQ ID NO: 79 of the parental Escherichia coli microorganism.