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Title:
SUPPORT FOR ANTIBODY PURIFICATION, MANUFACTURING METHOD FOR SAME, AND APPLICATION FOR SAME
Document Type and Number:
WIPO Patent Application WO/2013/187398
Kind Code:
A1
Abstract:
 The purpose of the present invention is to provide: a support onto which Protein A has been immobilized, the Protein A having a specific amino acid sequence that enables the dissociation of antibodies under mild pH conditions (specifically, pH4.0-5.5) in which many antibodies do not undergo acid modification; and a manufacturing method for the support. An immobilization support (excluding an immobilization support having a monolith structure) onto which a protein is adsorbed by electrostatic interaction, said protein comprising an amino acid sequence represented by general formula R1-R2-R3-R4-R5-R6, and the section of said protein represented by R1-R2-R3 being used for immobilization on the immobilization support (in the formula: the sequence represents a sequence from the amino-terminal side towards the carboxyl-terminal side; the sequence of the R2 part is either a protein A mutant sequence, which is the protein to be immobilized, or a sequence in which 1-3 of said sequences are linked; and the protein A mutant exhibits the characteristics of strongly binding to the antibodies in neutral conditions, and dissociating with the antibodies which were bonded with in the neutral conditions when in mildly acidic conditions in the range of pH4.0-5.5].

Inventors:
IWAKURA MASAHIRO (JP)
HIROTA KIYONORI (JP)
OTAKA SEIJI (JP)
Application Number:
PCT/JP2013/066058
Publication Date:
December 19, 2013
Filing Date:
June 11, 2013
Export Citation:
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Assignee:
DAISO CO LTD (JP)
International Classes:
C07K17/00; C07K1/22; C07K14/31; G01N30/88; G01N33/53; G01N37/00
Domestic Patent References:
WO2001000797A12001-01-04
Foreign References:
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Other References:
KIYONORI HIROTA ET AL.: "Kotai Iyakuhin no Tameno Tailor-Made Seisei Gijutsu Kaihatsu", CHEMICAL ENGINEERING, vol. 56, no. 4, 2011, pages 293 - 299, XP008169237
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See also references of EP 2862879A4
Attorney, Agent or Firm:
HIRAKI Yusuke et al. (JP)
Yusuke Hiraki (JP)
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