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Title:
NOVEL SHUTTLE VECTOR
Document Type and Number:
WIPO Patent Application WO/2006/057289
Kind Code:
A1
Abstract:
A bifidobacteria microorganism (BM)/E. coli shuttle vector, which has a wide host range in BM, yields a large copy number and allows the overexpression of a desired protein when it is used as an expression vector; an expression vector that allows the expression of a desired gene in BM using the shuttle vector; BM transformed with the expression vector; and an antitumor agent containing the BM as an active ingredient are provided. The BM/E. coli shuttle vector which contains the replication origin (oriV)-repB region of pTB6, a region derived from pTB6 not containing MembB, MobA, OrfI and oriT regions, the replication origin (oriC) region of E. coli, and a plasmid region derived from E. coli in which DNA encoding the N-terminal region of β-lactamase which is an expression product of an ampicillin resistance gene (ampR) has been deleted, and whose average copy number is 6 to 30 is constructed.

Inventors:
KANO YASUO (JP)
HAMAJI YOSHINORI (JP)
FUJIMORI MINORU (JP)
SASAKI TAKAYUKI (JP)
KONO KYOKO (JP)
AMANO JUN (JP)
TANIGUCHI SHUNICHIRO (JP)
Application Number:
PCT/JP2005/021566
Publication Date:
June 01, 2006
Filing Date:
November 24, 2005
Export Citation:
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Assignee:
ANAEROPHARMA SCIENCE INC (JP)
KANO YASUO (JP)
HAMAJI YOSHINORI (JP)
FUJIMORI MINORU (JP)
SASAKI TAKAYUKI (JP)
KONO KYOKO (JP)
AMANO JUN (JP)
TANIGUCHI SHUNICHIRO (JP)
International Classes:
C12N15/00; A61K35/74; A61K35/745; A61K38/51; A61K48/00; A61P35/00; C12N1/21; C12N15/09; C12N15/70; C12N15/74; C12R1/01
Other References:
PARK M S ET AL: "Sequence analysis of plasmid pKJ50 from Bifidobacterium longum.", MICROBIOLOGY., vol. 145, no. 3, 1999, pages 585 - 592, XP002903008
TANAKA K ET AL: "Structural and functional analysis of pTB6 from Bifidobacterium longum.", BIOSCI BIOTECHNOL BIOCHEM., vol. 69, no. 2, February 2005 (2005-02-01), pages 422 - 425, XP002995226
Attorney, Agent or Firm:
Hirota, Masanori (8-5 Akasaka 2-chom, Minato-ku Tokyo 52, JP)
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