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Title:
IGA-BINDING PEPTIDE AND IGA PURIFICATION USING SAME
Document Type and Number:
WIPO Patent Application WO/2011/148952
Kind Code:
A1
Abstract:
Disclosed is a peptide which is characterized by comprising an amino acid sequence that is represented by (X1-3)-C-(X8-10)-C-(X1-3) (wherein each X independently represents an arbitrary amino acid residue other than cysteine and C represents a cysteine residue) and consists of 12-18 amino acid residues. The peptide is also characterized by being capable of binding to human IgA. Also disclosed is a method for assaying or purifying human IgA using the peptide.

Inventors:
ITO YUJI (JP)
Application Number:
PCT/JP2011/061906
Publication Date:
December 01, 2011
Filing Date:
May 24, 2011
Export Citation:
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Assignee:
UNIV KAGOSHIMA (JP)
OTSUKA CHEMICAL CO LTD (JP)
ITO YUJI (JP)
International Classes:
C12N15/09; C07K7/08; C07K16/00; C07K17/00; G01N30/88; G01N33/53; G01N33/68
Domestic Patent References:
WO2000063383A12000-10-26
WO2008054030A12008-05-08
WO1992017588A21992-10-15
WO2000063383A12000-10-26
WO2008054030A12008-05-08
Foreign References:
JP2010118508A2010-05-27
Other References:
YUJI ITO: "Ikusei Kenkyu: JST Innovation Satellite Miyazaki Heisei 18 Nendo Saitaku Kadai 'Seigyogata Hito Kotai Ketsugo Peptide ni yoru Kotai no Kenshutsu, Seisei Gijutsu no Kaihatsu'", PEPTIDE NI YORU SHINKI HITO KOTAI NO KENSHUTSU - SEISEIHO NO KAIHATSU, 2009, Retrieved from the Internet [retrieved on 20110615]
SANDIN, C. ET AL.: "Isolation and Detection of Human IgA Using a Streptococcal IgA-Binding Peptide.", J. IMMUNOL., vol. 169, 2002, pages 1357 - 1364
SAKAMOTO, K. ET AL.: "Discovery and Characterization of a Peptide Motif That Specifically Recognizes a Non-native Conformation of Human IgG Induced by Acidic pH Conditions.", J. BIOL. CHEM., vol. 284, no. 15, 2009, pages 9986 - 9993, XP002547442
HATANAKA, T. ET AL.: "Affinity purification of IgG by specific peptide-conjugated column.", DAI 46 KAI PEPTIDE TORONKAI KOEN YOSHISHU, vol. 46TH, 2009, pages 103
See also references of EP 2578681A4
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Attorney, Agent or Firm:
HIRAKI Yusuke et al. (JP)
Yusuke Hiraki (JP)
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