Patent ID: 6858406

Claim:
A process for the microbacterial production of amino acids, comprising the steps of: 1) providing a microbial organism having amino acid export carrier activity and having export gene-expression, 2) increasing one of the export carrier activities of said microbial organism, wherein said export carrier has the amino acid sequence SEO ID NO: 2, and the export carrier activity is endogenous to said microbial organism, and 3) increasing the export gene expression of said export carrier, wherein said gene comprising nucleotides 1016 to 1726 of SEQ ID NO: 1 by means of one of the steps selected from the group of: i) increasing the number of gene copies of the export carrier gene, ii) modifying regulatory signals assigned to the export carrier gene, and iii) amplifying regulatory signals assigned to the export carrier gene, whereby amino acids are produced by said microbial organism with increased efficiency, and 4) recovering the amino acids from the culture.