Method for the preparation of L-amino acids using strains of the enterobacteriaceae family with increased expression of ytfQ-ORF

摘要

A recombinant microorganism (R1) comprises an enhanced or overexpressed open reading frame designated ytfQ (ytfQ-ORF) relative to non-recombinant microorganisms of the same species, where the ytfQ-ORF is a binding protein of an ATP-dependent sugar transporter. An independent claim is also included for the preparation of an L-amino acid by fermenting recombinant microorganisms of the Enterobacteriaceae family, involving culturing the recombinant microorganism (R1) in a medium.