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:
Mar. 14, 2000
Filed:
Dec. 30, 1998
Applicant:
Inventors:
Mikiko Suga, Kawasaki, JP;
Masakazu Sugimoto, Kawasaki, JP;
Tsuyoshi Osumi, Tokyo, JP;
Tsuyoshi Nakamatsu, Kawasaki, JP;
Wataru Hibino, Kawasaki, JP;
Mika Ito, Yokkaichi, JP;
Assignee:
Ajinomoto Co., Inc., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12P / ; C12N / ; C12N / ; C12N / ;
U.S. Cl.
CPC ...
435116 ; 43525232 ; 4352521 ; 435193 ; 435195 ;
Abstract
L-serine is produced by cultivating in a medium a coryneform bacterium having L-serine productivity in which an activity of at least one of phosphoserine phosphatase and phosphoserine transaminase is enhanced, preferably, further having introduced therein a gene coding for D-3-phosophoglycerate dehydrogenase in which feedback inhibition by L-serine is desensitized, allowing L-serine to accumulate in the medium, and collecting the L-serine from the medium.