The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 30, 2006
Filed:
Apr. 03, 2002
Applicants:
Mechthild Rieping, Bielefeld, DE;
Thomas Hermann, Bielefeld, DE;
Inventors:
Mechthild Rieping, Bielefeld, DE;
Thomas Hermann, Bielefeld, DE;
Assignee:
Degussa AG, Duesseldorf, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12P 13/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a process for producing an L-amino acid, in particular, L-threonine, which comprises: cultivating a microorganism of the family Enterobacteriaceae producing the desired L-amino acid under conditions suitable for production of the amino acid, in which the fruR (cra) (fructose repressor) gene or nucleotide secluences coding therefor in the microorganism is attenuated, in particular are switched off or eliminated, and recovering the L-amino acid from the medium or in the cells of the microorganism.