Novel gene and method for producing L-amino acids

摘要

A bacterium which has an ability to produce an amino acid and in which rhtC gene coding for a protein having an activity of making a bacterium having the protein L-threonine-resistant is enhanced, preferably, in which rhtB gene coding for a protein having an activity of making a bacterium having the protein L-homoserine-resistant is further enhanced, is cultivated in a culture medium to produce and accumulate the amino acid in the medium, and the amino acid is recovered from the medium.