PROCESS FOR THE MICROBIAL PRODUCTION OF AMINO ACIDS BY BOOSTED ACTIVITY OF EXPORT CARRIERS

摘要

The invention pertains to a process for the microbial production of amino acids. The process in question involves boosting the export carrier activity and/or export gene expression of a micro-organism which produces the desired amino acid. According to the invention, it was found that a single specific gene is responsible for the export of a given amino acid, and on that basis a process for the microbial production of amino acids, involving the controlled boosting of the export gene expression and/or export carrier activity of a micro-organism which produces the amino acid in question, has been developed for the first time. The boosted expression or activity of the export carrier resulting from this process increases the secretion rate and thus increases transport of the desired amino acid.