Patent ID: 7282357

Claim:
A method for the fermentative production of L-methionine, which comprises the following steps: a) fermenting in a medium cells of a coryneform bacterium for producing L-methionine, the coryneform bacteria expressing at least one heterologous nucleotide sequence which codes for a protein with methylenetetrahydrofolate reductase (metF) activity, wherein said heterologous nucleotide sequence comprises a nucleotide sequence encoding a metF protein having an amino acid sequence as set forth in SEQ ID NO: 2 or comprises a nucleotide sequence encoding a metF protein having an amino acid sequence with 95% homology or more to the sequence as set forth in SEQ ID NO: 2; b) concentrating L-methionine in the medium or in the bacterial cells, and c) isolating L-methionine.