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Title:
RECOMBINANT STRAIN FOR PRODUCING 2'-FUCOSYLLACTOSE, CONSTRUCTION METHOD, AND USE
Document Type and Number:
WIPO Patent Application WO/2024/045620
Kind Code:
A1
Abstract:
The present invention relates to a recombinant strain for producing 2'-fucosyllactose, a construction method, and use, and pertains to the technical field of genetic engineering. The recombinant strain and the construction method therefor provided by the present invention are characterized in that the setA gene is subjected to in-situ overexpression by means of gene editing. The recombinant strain provided by the present invention can further comprise beneficial gene editing of a coding gene for a de novo synthesis pathway related enzyme of 2'-fucosyllactose, a coding gene for a remedial pathway related enzyme of 2'-fucosyllactose, a lactose lac operon sequence, and a coding gene for a synthesis precursor degradation related enzyme of 2'-fucosyllactose. With the recombinant strain provided by the present invention, a higher 2'-fucosyllactose yield is obtained by means of in-situ overexpression of the setA gene than by means of overexpression of a setA gene plasmid.

Inventors:
ZONG JIANFEI (CN)
LI QINGGANG (CN)
LI YU (CN)
XIAO WEIHUA (CN)
LU FUPING (CN)
Application Number:
PCT/CN2023/087184
Publication Date:
March 07, 2024
Filing Date:
April 08, 2023
Export Citation:
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Assignee:
SHANDONG SYNBIO VISION TECH CO LTD (CN)
International Classes:
C12N1/21; C12N15/31; C12N15/54; C12N15/55; C12N15/60; C12N15/61; C12P19/00; C12R1/19
Foreign References:
CN115786220A2023-03-14
CN112501106A2021-03-16
CN114774343A2022-07-22
Other References:
SUN XUE, PENG ZETAO, LI CHANG, ZHENG YANLING, CHENG YA'NAN, ZONG JIANFEI, LU FUPING, LI YU, LI QINGGANG: "Combinatorial metabolic engineering and tolerance evolving of Escherichia coli for high production of 2′-fucosyllactose", BIORESOURCE TECHNOLOGY, ELSEVIER, AMSTERDAM, NL, vol. 372, 1 March 2023 (2023-03-01), AMSTERDAM, NL , pages 128667, XP093143931, ISSN: 0960-8524, DOI: 10.1016/j.biortech.2023.128667
CHAO SHUANGYING, HU XUEJUN: "Application of gene editing technology in Escherichia coli", CHINESE JOURNAL OF BIOTECHNOLOGY, ZHONGGUO KEXUEYUAN WEISHENGWU YANJIUSUO, CHINESE ACADEMY OF SCIENCES, INSTITUTE OF MICROBIOLOGY, CN, vol. 38, no. 4, 25 April 2022 (2022-04-25), CN , pages 1446 - 1461, XP093143940, ISSN: 1000-3061, DOI: 10.13345/j.cjb.210680
Attorney, Agent or Firm:
BEIJING ZHIWENTONGDA INTELLECTUAL PROPERTY AGENCY (CN)
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