Patent ID: 6861246

Claim:
An L-Lysine-producing bacterium of the species Corynebacterium glutamicum comprising: a) an overexpressed wild type pyc gene of Corynebacterium glutamicum encoding pyruvate carboxylase, wherein overexpression of said pyc gene is achieved by increasing the copy number of said pyc gene, and b) an overexpressed wild type dapA gene of Corynebacterium glutamicum encoding dihydrodipicolinate synthase, wherein overexpression of said dapA gene is achieved by using a dapA promoter selected from the group consisting of: the dapA promoter comprising the MC20 mutation as set forth in SEQ ID NO: 5 and the dapA promoter comprising the MA16 mutation as set forth in SEQ ID NO: 6, and whereby said overexpression of said wild type pyc gene of Corynebacterium glutamicum or said wild type dapA gene of Corynebacterium glutamicum results in pyruvate carboxylase activity or dihydrodipicolinate synthase activity above the level of that found in a wild type Corynebacterium glutamicum.