Daesang Corporation L-Glutamic Acid Producing Corynebacterium Mutant Patent
Summary
The USPTO granted Patent US12600939B2 to Daesang Corporation on April 14, 2026, covering a mutant Corynebacterium glutamicum strain with enhanced L-glutamic acid productivity. The mutant strain incorporates a mechanosensitive ion channel gene derived from Corynebacterium sp., improving glutamic acid release and yield. The patent includes 3 claims and names Young Ju Lee, Bong Ki Kim, Min Jin Choi, Seok Hyun Park, and Jae Chun Han as inventors.
What changed
The USPTO issued Patent US12600939B2 to Daesang Corporation for a genetically modified Corynebacterium glutamicum strain engineered with increased L-glutamic acid productivity. The strain achieves improved yield through introduction of a mechanosensitive ion channel gene derived from Corynebacterium sp., which enhances glutamic acid release. This is a standard patent grant confirming IP protection for the inventor-assignee.
Affected parties include Daesang Corporation as the patent holder and potential competitors in amino acid or fermentation-based chemical manufacturing. Third parties seeking to use the patented mutant strain or production method will need to obtain licensing from Daesang Corporation to avoid infringement risk.
Archived snapshot
Apr 21, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Mutant of Corynebacterium glutamicum with enhanced l-glutamic acid productivity and method for preparing l-glutamic acid using the same
Grant US12600939B2 Kind: B2 Apr 14, 2026
Assignee
DAESANG CORPORATION
Inventors
Young Ju Lee, Bong Ki Kim, Min Jin Choi, Seok Hyun Park, Jae Chun Han
Abstract
The present invention relates to a Corynebacterium glutamicum mutant strain having increased L-glutamic acid productivity, a method for constructing the same, and a method of producing L-glutamic acid using the same. The Corynebacterium glutamicum mutant strain is a strain into which a mechanosensitive ion channel gene derived from a Corynebacterium sp. strain has been introduced, and thus it can produce L-glutamic acid in an improved yield due to enhancement of glutamic acid release. Therefore, when the mutant strain is used, it is possible to more effectively produce L-glutamic acid.
CPC Classifications
C12N 1/20 C12N 15/67 C12N 15/77 C07K 14/34 C12P 13/14 C12R 2001/15
Filing Date
2020-08-26
Application No.
17798792
Claims
3
Mentioned entities
Parties
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