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(19)

(11)

2 247 778

(13)

(51)

IPC

(21) (22)

Application

2000103965/13, 2000-02-18

(24)

Start date

2000-02-18

(22)

Actual filing date

2000-02-18

(45)

Published

2005-03-10

(72)

Inventor

Marks AkhimMekkel' BettinaPfefferle Val'TerZam GermannDe-Graf AlbertEhggeling Lotar

(73)

Holder

Degussa AgForshungstsentrum Jjulikh Gmbkh

METHOD FOR ENZYMATIC PREPARING L-AMINO ACIDS USING CORYNEBACTERIA Russian patent published in 2005 - IPC

Abstract RU 2247778 C2

FIELD: biotechnology, L-amino acids.

SUBSTANCE: invention relates to a method for preparing such L-amino acids as L-threonine, L-isoleucine, L-valine, L-tryptophan and L-homoserine that involves fermentation with using corynebacteria wherein a nucleotide sequence encoding glutamic acid dehydrogenase is subjected for superexpression. Invention provides elevating yield of indicated amino acids.

EFFECT: improved preparing method.

9 cl, 5 tbl, 5 ex

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RU 2 247 778 C2

Authors

Marks Akhim

Mekkel' Bettina

Pfefferle Val'Ter

Zam Germann

De-Graf Albert

Ehggeling Lotar

Dates

2005-03-10—Published

2000-02-18—Filed