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Molecular characterization of the construction and function of the membrane microdomain(raft)

Research Project

Project/Area Number 16370062
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Functional biochemistry
Research InstitutionKobe University

Principal Investigator

MAEKAWA Shohei  Kobe-University, Graduate School of Science and Technology, Professor, 自然科学研究科, 教授 (40173695)

Project Period (FY) 2004 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥13,800,000 (Direct Cost: ¥13,800,000)
Fiscal Year 2006: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 2005: ¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2004: ¥8,500,000 (Direct Cost: ¥8,500,000)
Keywordsraft / NAP-22 / cholesterol / neuron / bioinformation / ミエリン / PIP2 / 細胞膜 / v-ATPase / Cl-ATPase
Research Abstract

1. Molecular characterization of brain-derived membrane microdomain was performed. The raft-localization of Na/K-ARPase, one of the main ATPase in the cell membrane, was found. The isoform-specific localization change of this ATPase through ouabain-treatment was discovered.
2. NAP-22 binding proteins were detected through immunoprecipitation, and these proteins were identified as protein N-myristoyl transferase-1, and-2. This result suggests the possibility of protein modification on raft.
3. Oligomer-formation of NAP-22 through the maturation of neurons was found. Since cholesterol depletion abolished this formation, membrane cholesterol is found to have an important role in this oligomerization.
4. Neurocalcin a is a raft-localized protein. Alsin, one of the proteins related to ALS(amyotrophic lateral screlosis), was identified as a neurocalcin a binding protein. The molecular interaction of these proteins are under investigation.
5. Raft-localization of phospholipaseC β1, β2, and β3 were found. Purification and molecular characterization of PLC β1 from raft was performed and an inhibitory effect of NAP-22 on the enzymatic activity was found. This result suggests the participation of NAP-22 on the lipid dynamics on the membrane.

Report

(4 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (14 results)

All 2007 2005 2004

All Journal Article (14 results)

  • [Journal Article] Ouabain-induced isoform-specific localization change of the Na^+, K^+ -ATPase α subunit in the synaptic plasma membrane of rat brain.2007

    • Author(s)
      田口 勝敏
    • Journal Title

      Neurosci. Lett 413

      Pages: 42-45

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Localization of phospholipase Cβ1 on the detergent-resistant membrane microdomain prepared from the synaptic plasma membrane of rat brain.2007

    • Author(s)
      田口 勝敏
    • Journal Title

      J. Neurosci. Res (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Myelin protein zero is one of the components of the detergent-resistant membrane microdomain fraction prepared from rat pituitary2007

    • Author(s)
      田口 勝敏
    • Journal Title

      J. Molecular Histology (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Ouabain-induced isoform-specific localization change of the Na+, K+-ATPase a subunit in the synaptic plasma membrane of rat brain2007

    • Author(s)
      Taguchi, K., Kumanogoh, H., Nakamura, S., Maekawa, S.
    • Journal Title

      Neurosci. Lett. 413

      Pages: 42-45

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Localization of phospholipase C β 1 on the detergent-resistan membrane microdomain prepared from the synaptic plasma membrane of rat brain.2007

    • Author(s)
      Taguchi, K., Kumanogoh, H., Nakamura, S., Maekawa, S.
    • Journal Title

      J. Neurosci. Res. (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Myelin protein zero is one of the components detergent-resistant membrane microdomain fraction prepared from rat pituitary.2007

    • Author(s)
      Taguchi, K., Kumanogoh, H., Nakamura, S., Miyata, S., Maekawa, S.
    • Journal Title

      J. Mol. Histol. (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Localization of phospholipase Cβ1 on the detergent-resistant membrane microdomain prepared from the synaptic plasma membrane of rat brain.2007

    • Author(s)
      田口 勝敏
    • Journal Title

      J. Neurosci. Res (in press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Myelin protein zero is one of the components of the detergent-resistant membrane microdomain fraction prepared from rat pituitary2007

    • Author(s)
      田口 勝敏
    • Journal Title

      J. Molecular Histology (in press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Biochemical and morphological evidence of the interaction of oligodendrocyte membrane rafts with actin filaments2005

    • Author(s)
      Katsutoshi Taguchi
    • Journal Title

      Journa of Neuroscience Research 81

      Pages: 218-225

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Activatio of latent cyclin-dependent kinase 5(Cdk5)-p35 complexes by membrane dissociation.2005

    • Author(s)
      Ying-Shan Zhu
    • Journal Title

      Journal of Neurochemistry 94

      Pages: 1535-1545

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Motor, sensory and autonomic nerve terminals containing NAP-22 immunoreactivity in the rat muscle.2004

    • Author(s)
      Satoshi Iino
    • Journal Title

      Brain Research 1002

      Pages: 142-150

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Cholesterol-dependent partitioning of Ptdins(4,5)P2 into membrane domains by the N-terminal fragment of NAP-22(neuronal axonal myristoylated membrane.2004

    • Author(s)
      Richard M.Epand
    • Journal Title

      Biochemical Journal 379

      Pages: 527-532

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Localization of the Cl- -ATPase activity on NAP-22 enriched membrane microdomain(raft) of rat brain.2004

    • Author(s)
      Shohei Maekawa
    • Journal Title

      Neuroscience Letters 362

      Pages: 158-161

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Identification of V-ATPase as a major component in the raft fraction prepared from the synaptic plasma membrane and the synaptic vesicle of rat brain.2004

    • Author(s)
      Koji Yoshinaka
    • Journal Title

      Neuroscience Letters 3632

      Pages: 168-172

    • Related Report
      2004 Annual Research Report

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Published: 2004-04-01   Modified: 2016-04-21  

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