FIELD: biotechnology.
SUBSTANCE: invention is a polypeptide involved in the production of L-lysine consisting of the amino acid sequence represented by SEQ ID NO 1 in which alanine being the amino acid corresponding to position 272 of SEQ ID NO 3 is replaced by isoleucine. EFFECT: the invention also relates to a method for the production of L-lysine, which includes cultivating Corynebacterium glutamicum containing a polypeptide in a medium according to the invention or a polynucleotide encoding this polypeptide.
EFFECT: obtaining L-lysine with a high degree of efficiency.
5 cl, 1 dwg, 3 tbl, 3 ex
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