07256021 is referenced by 25 patents and cites 15 patents.

The invention relates to a process for the preparation of L-amino acids, especially L-lysine, L-valine, L-homoserine and L-threonine, by fermenting a microorganism of the genus Escherichia which has a mutation or deletion in the gene encoding aspartate ammonium lyase (aspA). This mutation results in the loss of aspA enzymatic activity in the microorganism

Title
Enterobacteriaceae strains with an attenuated aspA gene for the fermentative production of amino acids
Application Number
10/416364
Publication Number
7256021 (B2)
Application Date
July 3, 2002
Publication Date
August 14, 2007
Inventor
Thomas Hermann
Bielefeld
DE
Agent
Law Office of Michael A Sanzo
Michael A Sanzo
Assignee
Degussa
DE
IPC
C12Q 1/68
C12N 15/70
C12N 15/00
C12N 1/21
C12P 13/08
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