US 10,081,822 B2Granted

Microorganism of the genus Escherichia producing L-tryptophan and method for producing L-tryptophan using the same

AssigneeCj Cheiljedang Corporation

InventorsSeok Myung Lee, Baek Seok Lee, Kyungrim Kim, Kwang Ho Lee, Keun Cheol Lee, Hyeongpyo Hong

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Abstract

The present invention relates to a microorganism of the genus Escherichia in which L-tryptophan productivity is improved by inactivating phosphatase activity. Further, the present invention relates to a method for producing L-tryptophan using the microorganism of the genus Escherichia.

Claims4

Dependent claims

A modified microorganism of the genus Escherichia producing L-tryptophan, wherein the activity of phosphatase comprising the amino acid sequence of SEQ ID NO:

1 is inactivated.

Dependencies are inferred from the claim text.

Facts

Application: 15/573,236Filed 10 May 2016
Priority: KR 10-2015-006766014 May 2015
Published: US 2018/0087077 A129 Mar 2018
Granted: 25 Sep 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

C12P 13/227
Tryptophan; Tyrosine; Phenylalanine; 3,4-Dihydroxyphenylalanine: tryptophan
C12N 1/20
Microorganisms; Compositions thereof ; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of…:…
C12N 9/16
Hydrolases: acting on ester bonds
C12N 15/70
Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression: vectors or expression systems…

Family

US 2018/0087077 A1Pre-grant publication · published 29 Mar 2018
US 10,081,822 B2This patent

From the US filing history. Foreign family members aren’t listed.

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