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Title:
TRANSGENIC BIRD EXPRESSING FOREIGN GENE USING ENDOPLASMIC RETICULUM CHAPERONE PROMOTER
Document Type and Number:
WIPO Patent Application WO/2013/031734
Kind Code:
A1
Abstract:
The present invention addresses the problem of, in the production of a useful foreign protein in a transgenic bird, achieving such a production amount in the egg albumen as being the same or more than the expression amount of the useful foreign protein in the case of using an ovalbumin promoter or an actin promoter, and achieving such an expression amount as being predictable prior to sexual maturation, while regulating the expression amount in organs other than the oviduct so as to avoid excessive load on the bird. Provided is a transgenic bird having, on the chromosomes in cells constituting the oviduct thereof, a nucleic acid base sequence in which an avian endoplasmic reticulum chaperone promoter is functionally attached to a nucleic acid base sequence encoding a useful foreign protein. Also provided is a method for producing a useful foreign protein, said method comprising a step for harvesting the useful foreign protein from a transgenic bird. Also provided is a method for producing a transgenic bird, said method comprising a step for introducing a nucleic acid base sequence, in which an avian endoplasmic reticulum chaperone promoter is functionally attached to a nucleic acid base sequence encoding a useful foreign protein, on the chromosomes in cells constituting the oviduct.

Inventors:
KYOGOKU KENJI (JP)
WATANABE HIROYUKI (JP)
Application Number:
PCT/JP2012/071609
Publication Date:
March 07, 2013
Filing Date:
August 27, 2012
Export Citation:
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Assignee:
KANEKA CORP (JP)
KYOGOKU KENJI (JP)
WATANABE HIROYUKI (JP)
International Classes:
A01K67/027; C12N15/09; C12P21/02
Foreign References:
JP2001054391A2001-02-27
JPH11243959A1999-09-14
Other References:
LILLICO S.G. ET AL.: "Oviduct-specific expression of two therapeutic proteins in transgenic hens", PROC NATL ACAD SCI USA., vol. 104, no. 6, 2007, pages 1771 - 1776, XP055143258
WANG A.P. ET AL.: "Recombinant avian adeno-associated virus-mediated oviduct-specific expression of recombinant human tissue kallikrein", POULT SCI., vol. 87, no. 4, 2008, pages 777 - 782, XP055143264
BYUN S.J. ET AL.: "Oviduct-specific enhanced green fluorescent protein expression in transgenic chickens", BIOSCI.BIOTECHNOL. BIOCHEM., vol. 75, no. 4, April 2011 (2011-04-01), pages 646 - 649, XP055154959
KALERI H.A. ET AL.: "Oviduct-specific expression of tissue plasminogen activator in laying hens", GENET.MOL.BIOL., vol. 34, no. 2, April 2011 (2011-04-01), pages 231 - 236, XP055143266
See also references of EP 2752112A4
Attorney, Agent or Firm:
YASUTOMI & Associates (JP)
Patent business corporation Yasutomi international patent firm (JP)
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Claims: