Abstract: The present invention relates to a method of microbial production of L-lysine from methanol and other substrates, and particularly improving the production of L-lysine from such substrates. The invention concerns a method for producing L-lysine in B. methanolicus, said method comprising overexpressing an aspartate kinase III (AKIII) enzyme in said B. methanolicus. In particular the method may concern introducing a nucleic acid molecule comprising a nucleotide sequence encoding an AKIII enzyme into a B. methanolicus. The invention also relates to a B. methanolicus micro-organism which overexpresses an AKIII enzyme, nucleic acid molecules which encode polypeptides having AK activity, polypeptides which have AK activity and host cells and vector systems comprising the nucleic acid molecules or vector.

Abstract: The present invention relates to a method of microbial production of L-lysine from methanol and other substrates, and particularly improving the production of L-lysine from such substrates. The invention concerns a method for producing lysine in B. methanolicus, said method comprising overexpressing an aspartate kinase III (AKIII) enzyme in said B. methanolicus. In particular the method may concern introducing a nucleic acid molecule comprising a nucleotide sequence encoding an AKIII enzyme into a B. methanolicus. The invention also relates to a B. methanolicus micro-organism which overexpresses an AKIII enzyme, nucleic acid molecules which encode polypeptides having AK activity, polypeptides which have AK activity and host cells and vector systems comprising the nucleic acid molecules or vector.