Patent ID: 7989191

Claim:
A process for producing an L-amino acid selected from the group consisting of L-lysine, L-threonine, L-isoleucine, L-arginine, L-phenylalanine, L-tyrosine and L-tryptophan, which comprises culturing a transformant or microorganism in a medium, allowing the L-amino acid to form and accumulate in the culture, and recovering the L-amino acid from the culture, wherein the transformant or microorganism has a DNA encoding a polypeptide as follows: a polypeptide having 95% or more homology to the amino acid sequence of SEQ ID NO:1 and substitution of the amino acid residue at the position corresponding to the 158 th amino acid of the amino acid sequence of SEQ ID NO:1 by an amino acid residue selected from the group consisting of Gly, Val, Ala, Thr, Trp, Cys, Asn, Gln and Tyr, and substitution of the amino acid residue at the position corresponding to the 361 st amino acid of the amino acid sequence of SEQ ID NO:1 by an amino acid residue selected from the group consisting of Val, Leu, Ile, Met, Gly, Ala, Pro and Trp, and having GND activity.