METHOD FOR PRODUCTION OF L-AMINO ACIDS BY FERMENTATION

摘要

The invention relates to a method for production of L-amino acids by fermentation. According to the invention, the activity of the alanine transaminase is ether reduced or inhibited, whereby in particular the amino acids L-vaIine, L-lysine and L-isoleucine are produced with increased yield. Furthermore, the nucleic acids according to seq. No. 1 from position 101 to 1414 are identified as the sequence coding for the alanine transaminase gene. Use of the above permits the production of L-alanine.