US2014147909A1PendingUtilityA1

Method for Producing an L-Amino Acid Using a Bacterium of the Enterobacteriaceae Family

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Assignee: AJINOMOTO KKPriority: Dec 21, 2007Filed: Feb 6, 2014Published: May 29, 2014
Est. expiryDec 21, 2027(~1.4 yrs left)· nominal 20-yr term from priority
Inventors:Tatyana Abramovna YampolskayaNatalia Viktorovna StoynovaNatalia Sergeevna EreminaIrina Borisovna AltmanLeonid Romanovich Ptitsyn
C12N 9/0008C12N 15/74C12P 13/08
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Claims

Abstract

The present invention provides a method for producing an L-amino acid from ethanol using a bacterium of the Enterobacteriaceae family, wherein the bacterium has been modified to enhance the expression of the ydbK gene.

Claims

exact text as granted — not AI-modified
We claim: 
     
         1 . A bacterium of the  Enterobacteriaceae  family which produces L-threonine or L-valine, wherein said bacterium has been modified to enhance the expression of the ydbK gene. 
     
     
         2 . The bacterium according to  claim 1 , wherein said expression is enhanced by modifying an expression control sequence of the ydbK gene or by increasing the copy number of the ydbK gene. 
     
     
         3 . The bacterium according to  claim 1 , wherein said bacterium belongs to the genus  Escherichia.    
     
     
         4 . The bacterium according to  claim 1 , wherein said bacterium belongs to the genus  Pantoea.

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