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Title:
POLYPHOSPHATE KINASE RMPPK, AND CODING GENE AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/031170
Kind Code:
A1
Abstract:
A polyphosphate kinase RmPPK, and a coding gene and an application thereof. The amino acid sequence of the polyphosphate kinase RmPPK is: the amino acid sequence shown in SEQ ID NO. 1; or an amino acid sequence in which the amino acid sequence shown in SEQ ID NO. 1 is modified by substituting, deleting, or adding one or more amino acids and having the same functions; or an amino acid sequence over 60% homologous with the amino acid sequence shown in SEQ ID NO.1 and having the same functions. A polyphosphate kinase gene RmPPK is introduced into E. coli BL21 (DE3) for high-efficiency expression in order to acquire the polyphosphate kinase RmPPK. A tool enzyme for the regeneration of CTP, CMP-sialic acid, UTP, UDP-Glc/UDP-GlcA/UDP-GlcNAc/UDP-Gal/UDP-GalNAc/UDP-Xyl, GTP or GDP-Fuc/GDP-Man is thus provided.

Inventors:
LI JIANJUN (CN)
DU YUGUANG (CN)
XU HUA (CN)
SUN MING (CN)
WANG ZHUO (CN)
JIAO SIMING (CN)
REN LISHI (CN)
Application Number:
PCT/CN2019/101864
Publication Date:
February 25, 2021
Filing Date:
August 21, 2019
Export Citation:
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Assignee:
ZHONGKE RUNXIN SUZHOU BIOLOGICAL TECH CO LTD (CN)
International Classes:
C12N9/12; C12N15/54; C12P19/32
Foreign References:
CN108795958A2018-11-13
CN105463043A2016-04-06
CN109161536A2019-01-08
CN109385390A2019-02-26
Other References:
DATABASE PROTEIN 20-06-2019, ANONYMOUS: "polyphosphate kinase 2 [Ruegeria marina]", XP055783035, retrieved from GENBANK Database accession no. WP_093026974
K. ISHIGE, H. ZHANG, A. KORNBERG: "Polyphosphate kinase (PPK2), a potent, polyphosphate-driven generator of GTP", PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES, NATIONAL ACADEMY OF SCIENCES, US, vol. 99, no. 26, 24 December 2002 (2002-12-24), US, pages 16684 - 16688, XP055377974, ISSN: 0027-8424, DOI: 10.1073/pnas.262655299
ISHIGE K. ET AL.: "Novel method for enzymatic synthesis of CMP-NeuAc", BIOSCIENCE, BIOTECHNOLOGY, AND BIOCHEMISTRY, vol. 65, no. 8, 1 August 2001 (2001-08-01), pages 1736 - 1740, XP002983840
WANG JUNZHI; ZHENG CHENG; ZHANG TIANYI; LIU YINGMIAO; CHENG ZHUOPEI; LIU DONG; YING HANJIE; NIU HUANQING: "Novel one-pot ATP regeneration system based on three-enzyme cascade for industrial CTP production", BIOTECHNOLOGY LETTERS, KLUWER ACADEMIC PUBLISHERS, DORDRECHT, vol. 39, no. 12, 31 August 2017 (2017-08-31), Dordrecht, pages 1875 - 1881, XP036355027, ISSN: 0141-5492, DOI: 10.1007/s10529-017-2427-x
Attorney, Agent or Firm:
SHANGHAI SHUONEE INTELLECTUAL PROPERTY LAW OFFICE (CN)
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