Cj Cheiljedang Corporation

Cj Corporation

Jin Suck Sung

Jun Ok Moon

Sang Jo Lim

Young Hoon Park

Hyo Jin Kim

Hyung Joon Kim

Jae Woo Jang

Do Hyun Kwon

Kyung Han Lee

Hee Jong Lee

Hyun Joon Kim

Jong Chul Kim

Tae Han Kim

Sang Hee Park

Hyun Won Bae

Hyun Ae Bae

Dae Cheol Kim

So Yeon Rah

Seong Jun Kim

Seok Won Song

The present invention relates to a method for producing highly-concentrated L-amino acid and riboflavin simultaneously, and a microorganism for simultaneously producing L-amino acid and riboflavin. Specifically, the present invention relates to a modified microorganism for producing L-lysine or L-threonine, and riboflavin simultaneously, wherein the microorganism belonging tosp. capable of producing L-lysine or L-threonine is modified by enhancing the activity of an enzyme family expressed by a rib operon which contains riboflavin biosynthesis gene family. Also, the present invention relates to a method for the simultaneous production of L-lysine or L-threonine, and riboflavin using the modified microorganism, and relates to a formulation or granular formulation, feed, and feed additive, containing L-lysine or L-threonine, and riboflavin produced from a culture medium of the modified microorganism.

Microorganism for simultaneously producing L-amino acid and riboflavin, and method for producing L-amino acid and riboflavin using same

The present invention relates tosp. that is transformed with ansp.-derived fructokinase gene to express fructokinase showing a sufficient activity of converting fructose into fructose-6-phosphate, thereby preventing unnecessary energy consumption, and a method for producing L-amino acids using the strain. The transformedsp. of the present invention is able to express fructokinase from the-derived fructokinase gene to prevent unnecessary energy consumption during fructose metabolism, leading to more cost-effective production of L-amino acids. Therefore, it can be widely used for the effective production of L-amino acids.

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A variant ofshows activity greater than the endogenous activity of aspartate aminotransferase, aspartate kinase, aspartate semialdehyde dehydrogenase, dihydrodipicolinate synthase, dihydropicolinate reductase and diaminopimelate dicarboxylase and additionally pyruvate carboxylase. The variant is used in a method of producing L-lysine.

Corynebacteria having enhanced L-lysine productivity and a method of producing L-lysine using the same

Provided are a microorganism ofgenus capable of producing L-lysine and resistant to kanamycin, and a method of producing L-lysine using the same.

Microorganism of corynebacterium genus having resistance to kanamycin and enhanced L-lysine productivity and method of producing L-lysine using the same

A nucleotide sequence of the threonine operon ofwith a deletion of all or part of a nucleotide fragment of &#x2212;56 to &#x2212;18, a recombinant vector containing the above nucleotide sequence, and a transformed host cell containing the recombinant vector are provided. A method for producing L-threonine comprising culturing the transformed host cell is also provided.

Nucleotide sequence of threonine operon irrepressible by isoleucine and method for producing L-threonine using transformed host cell containing the same

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Yongin, South Korea

Jin Suck Sung