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.

Date of Patent:
Apr. 24, 2001

Filed:

Dec. 05, 1997
Applicant:
Inventors:

Atsushi Hayakawa, Kawasaki, JP;

Masakazu Sugimoto, Kawasaki, JP;

Yasuhiko Yoshihara, Kawasaki, JP;

Tsuyoshi Nakamatsu, Kawasaki, JP;

Assignee:

Ajinomoto Co., Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P 1/308 ; C12N 1/20 ; C12N 1/500 ; C07H 2/104 ;
U.S. Cl.
CPC ...
C12P 1/308 ; C12N 1/20 ; C12N 1/500 ; C07H 2/104 ;
Abstract

A recombinant DNA autonomously replicable in cells of coryneform bacteria, comprising a DNA sequence coding for an aspartokinase in which feedback inhibition by L-lysine and L-threonine is substantially desensitized, and a DNA sequence coding for a diaminopimelate decarboxylase; a coryneform bacterium harboring an aspartokinase in which feedback inhibition by L-lysine and L-threonine is substantially desensitized, and comprising an enhanced DNA sequence coding for a diaminopimelate decarboxylase; and a method for producing L-lysine comprising the steps of cultivating the coryneform bacterium in an appropriate medium to allow L-lysine to be produced and accumulated in a culture of the bacterium, and collecting L-lysine from the culture.


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