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タイトル
  • en Development of a mouse monoclonal antibody against the chondroitin sulfate-protein linkage region derived from shark cartilage
作成者
    • en Akatsu, Chizuru
    • en Fongmoon, Duriya
    • en Jacquinet, Jean-Claude
    • en Kongtawelert, Prachya
アクセス権 open access
権利情報
  • en The final publication is available at www.springerlink.com
主題
  • Other en Proteoglycans
  • Other en Glycosaminoglycans
  • Other en Chondroitin sulfate
  • Other en Heparan sulfate
  • Other en Dermatan sulfate
  • Other en Monoclonal antibody
  • NDC 464
内容注記
  • Abstract en Glycosaminoglycans (GAGs) like chondroitin sulfate (CS) and heparan sulfate (HS) are synthesized on the tetrasaccharide linkage region, GlcAβ1-3Galβ1-3Galβ1-4Xylβ1-O-Ser, of proteoglycans. The Xyl can be modified by 2-O-phosphate in both CS and HS, whereas the Gal residues can be sulfated at C-4 and/or C-6 in CS but not in HS. To study the roles of these modifications, monoclonal antibodies were developed against linkage glycopeptides of shark cartilage CS proteoglycans, and one was characterized in detail. This antibody bound hexa- and pentasaccharide-peptides more strongly than tetrasaccharide-peptides, suggesting the importance of GalNAc. It did not react to the CS linkage region modified by 4-O-sulfation. Its reactivity was not affected by treatment with chondro-4-sulfatase or alkaline phosphatase. The results of an ELISA using various proteoglycans and glycopeptides with different modifications suggested the recognition of 6-O-sulfate on the GalNAc and/or Gal residues. Treatments with exopeptidases did not affect the reactivity of the hexasaccharide-peptide fraction, whereas weak alkali to cleave the Xyl-Ser linkage completely abolished the binding activity, suggesting the importance of the Xy-Ser linkage for the binding. Furthermore, the antibody stained wild-type CHO cells, but not mutant cells deficient in xylosyltransferase required for the synthesis of the linkage region. These results suggest that the antibody recognizes the structure GalNAc-GlcA-Gal-Gal-Xyl-Ser that is modified by 6-O-sulfation on GalNAc and/or Gal. The antibody will be a useful tool for investigating the significance of the linkage region in the biosynthesis and/or intracellular transport of different GAG chains.
出版者 en Springer Netherlands
日付
    Issued2010-05
言語
  • eng
資源タイプ journal article
出版タイプ AM
資源識別子 HDL http://hdl.handle.net/2115/49189
関連
  • isVersionOf DOI https://doi.org/10.1007/s10719-010-9286-1
  • PMID 20336366
収録誌情報
    • PISSN 0282-0080
    • EISSN 1573-4986
      • en Glycoconjugate Journal
      • 27 4 開始ページ387 終了ページ399
ファイル
コンテンツ更新日時 2023-07-26