Patent ID: 7241600

Claim:
A process for the preparation of at least one L-amino acid selected from the group consisting of L-lysine, L-valine, L-homoserine and L-threonine comprising: culturing a recombinant Escherichia coli transformed with a polynucleotide encoding phosphohistidine protein hexose phosphotransferase (ptsH), a polynucleotide encoding phosphoenol pyruvate protein phosphotransferase (ptsl), a polynucleotide encoding glucose-specific II A protein (crr), or a combination thereof under conditions suitable for production of the L-amino acid, and concentrating the L-amino acid, wherein the polynucleotides can be obtained by amplifying chromosomal DNA of Escherichia coli using primers SEQ ID NO:1 and SEQ ID NO:2.