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2 711 981

(13)

(51)

IPC

C12N15/70(2006-01-01)

C12N1/20(2006-01-01)

C12P13/22(2006-01-01)

(21) (22)

Application

2017142878, 2016-05-10

(24)

Start date

2016-05-10

(22)

Actual filing date

2016-05-10

(45)

Published

2020-01-23

(72)

Inventor

Park Hye MinLee Baek SeokLee Seok MyungKim KyungrimLee Kwang HoCheong Ki YongLee Keun CheolHong Hyeongpyo

(73)

Holder

Cj Cheiljedang Corporation

ESCHERICHIA GENUS MICROORGANISM HAVING L-TRYPTOPHAN PRODUCTIVITY, AND METHOD FOR PREPARING L-TRYPTOPHAN BY USING SAME Russian patent published in 2020 - IPC C12N15/70 C12N1/20 C12P13/22

Abstract RU 2711981 C2

FIELD: biotechnologies.

SUBSTANCE: invention relates to biotechnology. Described is a microorganism of genus Escherichia, having improved ability to produce L-tryptophan in comparison with unmodified microorganism, where activity of phosphatase containing amino acid sequence SEQ ID NO: 1, modified with inactivation to maintain intracellular concentration of E4P (erythrosis-4-phosphate). Invention also relates to a method of producing L-tryptophan using said microorganism. In addition, the invention also relates to a method of inhibiting destruction of intracellular E4P microorganisms of genus Escherichia, involving inactivation of phosphatase activity containing amino acid sequence SEQ ID NO: 1, in microorganism of genus Escherichia.

EFFECT: invention extends the range of products for producing L-tryptophan.

4 cl, 5 tbl, 4 ex

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RU 2 711 981 C2

Authors

Park Hye Min

Lee Baek Seok

Lee Seok Myung

Kim Kyungrim

Lee Kwang Ho

Cheong Ki Yong

Lee Keun Cheol

Hong Hyeongpyo

Dates

2020-01-23—Published

2016-05-10—Filed