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Structure Study of β2m Amyloid Fibril using Dynamic Nuclear Polarization-Enhanced High-Sensitivity Solid-State NMR

Research Project

Project/Area Number 21870019
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Structural biochemistry
Research InstitutionOsaka University

Principal Investigator

MATSUKI Yoh  Osaka University, 蛋白質研究所, 助教 (70551498)

Project Period (FY) 2009 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥2,756,000 (Direct Cost: ¥2,120,000、Indirect Cost: ¥636,000)
Fiscal Year 2010: ¥1,313,000 (Direct Cost: ¥1,010,000、Indirect Cost: ¥303,000)
Fiscal Year 2009: ¥1,443,000 (Direct Cost: ¥1,110,000、Indirect Cost: ¥333,000)
Keywordsアミロイド繊維 / 固体NMR / 動的核分極 / 希薄サンプリング / β2m / 動的核分極(DNP)法 / 時間-周波数領域情報統合分光(SIFT)法
Research Abstract

In this study, (1) more than 200-fold sensitivity enhancement was established for solid-state NMR spectroscopy using Dynamic Nuclear Polarization (DNP). (2) Application of the sparse data sampling technique enabled to detect conventionally unobservable signals. (3) A use of reserve isotope labeling technique resolved many previously unseen signals. (4) A new scheme to detect the molecular interfaces within a fibril was developed for high-selectivity and sensitivity. (5) ss2m was suggested to largely retain its native fold in the fibril, contrary to the widespread belief that amyloid fibril formation generally requires native proteins to adopt a fibril-specific fold.

Report

(3 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • Research Products

    (8 results)

All 2011 2010

All Journal Article (4 results) (of which Peer Reviewed: 1 results) Presentation (4 results)

  • [Journal Article] Dynamic Nuclear Polarization Experiments at 14.1T for Solid-State NMR2010

    • Author(s)
      Y.Matsuki, Hiroki Takahashi, Keisuke Ueda, Takatoshi Idehara, Isamu Ogawa, Mitsuru Toda, Hideo Akutsu, Toshimichi Fujiwara
    • Journal Title

      Physical Chemistry Chemical Physics 22

      Pages: 5799-5803

    • Related Report
      2010 Final Research Report
  • [Journal Article] 動的核分極(DNP)法による超高感度固体核磁気共鳴(NMR)2010

    • Author(s)
      松木陽
    • Journal Title

      低温センターたより 149

      Pages: 3-8

    • NAID

      120004844859

    • Related Report
      2010 Final Research Report
  • [Journal Article] Dynamic Nuclear Polarization Experiments at 14.1T for Solid-State NMR2010

    • Author(s)
      Yoh Matsuki
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: 12 Pages: 5799-5803

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 動的核分極(DNP)法による超高感度固体核磁気共鳴(NMR)2010

    • Author(s)
      松木陽
    • Journal Title

      低温センターたより

      Volume: 149 Pages: 3-8

    • NAID

      120004844859

    • Related Report
      2010 Annual Research Report
  • [Presentation] High Field, High Sensitivity Solid-State NMR by Dynamic Nuclear Polarization (DNP)2011

    • Author(s)
      Yoh Matsuki
    • Organizer
      Griffin-Herzfeld Seminar Series
    • Place of Presentation
      マサチューセッツ工科大学,USA
    • Year and Date
      2011-01-26
    • Related Report
      2010 Annual Research Report
  • [Presentation] High Sensitivity Solid-State NMR by Dynamic Nuclear Polarization (DNP), Griffin-Herzfeld Seminar Series2011

    • Author(s)
      Y.Matsuki, High Field
    • Organizer
      Massachusetts Institute of Technology
    • Place of Presentation
      Massachusetts, USA
    • Related Report
      2010 Final Research Report
  • [Presentation] 動的核分極(DNP)法による超高感度固体核磁気共鳴(NMR)2010

    • Author(s)
      松木陽
    • Organizer
      第48回固体NMR・材料フォーラム
    • Place of Presentation
      (独)物質・材料研究機構、つくば(招待講演)
    • Year and Date
      2010-10-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] 動的核分極(DNP)法による超高感度固体核磁気共鳴(NMR)2010

    • Author(s)
      松木陽
    • Organizer
      第48回固体NMR?材料フォーラム
    • Place of Presentation
      (独)物質?材料研究機構、つくば(招待講演)
    • Related Report
      2010 Final Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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