Generation and Characterization of Monoclonal Antibodies That Specifically Recognize p65/L-Plastin Isoform but Not T-Plastin Isoform

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The 65-kDa protein (p65) was previously identified as a phosphorylated protein in activated macrophages, and has turned out to be a member of a plastin protein family characterized by a series of Ca<SUP>2+</SUP>-, calmodulin-, and β-actin-binding domains. In mice, two isoforms, p65/L-plastin and T-plastin, have so far been identified; p65/L-plastin is expressed in hemopoietic cells and cancer cells, and T-plastin in solid tissue cells. We generated monoclonal antibodies to p65/L-plastin, examined the isoform-specificity by using recombinant (r) T-plastin, and found that the antibodies were specific for rp65/L-plastin, whereas immune sera to rp65/L-plastin showed cross-reactions to rT-plastin. One of the antibodies, p65-7B5, was demonstrated to react to native p65/L-plastin by Western blot, flow cytometric, and immunohistochemical analysis. Furthermore, p65-7B5 has made it possible to detect p65/L-plastin-expressing cells in tissues where T-plastin is abundantly expressed. These reagents and procedures should provide specific tools to investigate the role of p65/L-plastin in leukocytes.

収録刊行物

  • Bioscience, biotechnology, and biochemistry  

    Bioscience, biotechnology, and biochemistry 70(6), 1402-1407, 2006-06-23 

    Japan Society for Bioscience, Biotechnology, and Agrochemistry

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各種コード

  • NII論文ID(NAID)
    10018530092
  • NII書誌ID(NCID)
    AA10824164
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09168451
  • NDL 記事登録ID
    7958929
  • NDL 雑誌分類
    ZR7(科学技術--農林水産--農産) // ZR2(科学技術--生物学--生化学) // ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-G223
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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