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ピコ秒-メガ秒時間領域におけるたんばく質分子のダイナミクスと階層的溶媒和の解析

Research Project

Project/Area Number 18031034
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionTokai University

Principal Investigator

八木原 晋  Tokai University, 理学部, 教授 (40191093)

Co-Investigator(Kenkyū-buntansha) 喜多 理王  東海大学, 理学部, 講師 (90322700)
Project Period (FY) 2006 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥4,600,000 (Direct Cost: ¥4,600,000)
Fiscal Year 2007: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 2006: ¥2,600,000 (Direct Cost: ¥2,600,000)
Keywords水 / 誘電分光 / 高分子構造 / 高分子物性 / 生体分子 / たんぱく質 / フラクタル / ゆらぎ
Research Abstract

本研究では、ピコ秒からメガ秒に至る広い時間領域で発現する生体分子やモデル分子の階層的な動的構造を観測し、周囲の溶媒分子との相互作用で安定化される分子機構を考察した。次の5項目に関する知見が得られた。(1)生体分子周囲の自由水が生体分子をどう安定化しているのかを調べるため、ダイナミクスの平均的特性時間とゆらぎとの両方から解析する新たなフラクタル動的構造解析を行った。高分子や液晶,リポソーム,たんぱく質水溶液,皮膚,食品などに適用し、新たなキャラクタリゼーション手法としての可能性を示した。(2)分子鎖が結合水やイオンと共存する様子を観測するため、多糖類や合成高分子の水性ゲルを無極性溶媒のジオキサンで置換した。分子鎖ダイナミクスが立体障害の違いを反映する様子が観測された。(3)低温域での不凍水と生体分子の分子鎖の相互作用を調べた。たんぱく質や糖水溶液の低温域広帯域誘電分光から,ガラス転移を誘電緩和時間の温度依存性で定義でき、氷の形成する空間内で分子鎖が不凍水と相互作用してガラス転移を引き起こす描象を得た。(4)光散乱法により生体高分子の分子特性解析や階層的構造形成の動的挙動を調べた。希薄溶液で得られる1分子のサイズや形状の変化と多数の分子がつくる階層的な構造形成との関連に着目し系統的な結果が得られた。(5)生体の階層的ダイナミクスに立脚した解釈と物理的描像の構築を目指し,外場(温度勾配)を作用したときの分子間相互作用について、広帯域誘電分光(BDS)と光散乱の相補的観測を行った。分子の不可逆な拡散現象がセグメント-溶媒間の相互作用に依存する事を確認した。熱力学的非平衡系における生体高分子の構造形成や機能に関する新たな知見が得られた。

Report

(2 results)
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (42 results)

All 2008 2007 2006 Other

All Journal Article (15 results) (of which Peer Reviewed: 9 results) Presentation (26 results) Remarks (1 results)

  • [Journal Article] 誘電分光による水混合系の特徴付けとフラクタル構造表現における幾何学的特性2008

    • Author(s)
      松本 佳祐, 他
    • Journal Title

      東海大学紀要 理学部 43

      Pages: 127-143

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dielectric relaxation measurement and analysis of restricted water structure in rice kernels2007

    • Author(s)
      Shin, Yagihara, et. al.
    • Journal Title

      Meas. Sci. Technol 18

      Pages: 983-990

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Relaxation Processes of Water in the Liquid to Glassy States of Water Mixtures Studied by Broadband Dielectric Spectroscopy2007

    • Author(s)
      N., Shinyashika, et. al.
    • Journal Title

      J. Physics: Condensed Matter 19

      Pages: 2051113-205122

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dynamics of Water in Partially Crystallized Polymer/Water Mixtures Studied by Dielectric Spectroscopy2007

    • Author(s)
      N., Shinyashika, et. al.
    • Journal Title

      J. Phys. Chem. B 111

      Pages: 10079-10087

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dielectric Properties of Ethyleneglycol-1,4-Dioxane Mixtures Using TDR Method2007

    • Author(s)
      S., Sudo, et. al.
    • Journal Title

      J. Phys. Chem. A 111

      Pages: 2993-2998

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dielectric Relaxation and Dynamic Light Scattering Study of Liposome in the Aqueous Solution2007

    • Author(s)
      S.K., Kundu, et. al.
    • Journal Title

      MRS Symposium Proceedings 1019E

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dielectrics study on restricted molecules of liquid crystal and liposome2007

    • Author(s)
      S., Okudaira, et. al.
    • Journal Title

      Trans. Mater. Res. Soc. Jpn. 32

      Pages: 823-626

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Universal concentration dependence of the Soret coefficient in aqueous systems2007

    • Author(s)
      S., Wiegand, et. al.
    • Journal Title

      J. Non-Equilib. Thermodyn. 32

      Pages: 193-201

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] さまざまな時空領域におけるタンパク質と水のダイナミクス2007

    • Author(s)
      八木原 晋, 他
    • Journal Title

      生物物理 47

      Pages: 302-308

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Relaxation Processes of Water in the Liquid to Glassy States of Water Mixtures Studied by Broadband Dielectric Spectroscopy2007

    • Author(s)
      N.Shinyashiki
    • Journal Title

      J. Physics : Condensed Matter 19(印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Dielectric relaxation measurement and analysis of restricted water structure in rice kernels2007

    • Author(s)
      Shin Yagihara
    • Journal Title

      Meas. Sci. Technol 18

      Pages: 983-990

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Ludwig-Soret Effect of Poly(N-isopropylacrylamide) : Temperature Dependence Study in Monohydric Alcohols2007

    • Author(s)
      R.Kita
    • Journal Title

      Macromolecules 40

      Pages: 1638-1642

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Luettmer-Strathmann, and S. Wiegand, "Thermal Diffusion Behavior of Nonionic Surfactants in Water2006

    • Author(s)
      H.Ning
    • Journal Title

      J. Phys. Chem. B 110

      Pages: 10746-10756

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Thermal Diffusion of Dextran in Aqueous Solutions in the Absence and the Presence of Urea2006

    • Author(s)
      R.Sugaya
    • Journal Title

      Biomacromolecules 7

      Pages: 435-440

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Water and chain dynamics in polymer network structure2006

    • Author(s)
      Y.Umino
    • Journal Title

      Trans. MRS-J. 31(3)

      Pages: 767-770

    • Related Report
      2006 Annual Research Report
  • [Presentation] Transport phenomena of aqueous solutions of pullulan and dextran driven by temperature gradient2008

    • Author(s)
      Y., Kishikawa, et. al.
    • Organizer
      The 5th Open Workshop for Chemistry of Biological Processes Created by Water and Biomolecules
    • Place of Presentation
      奈良
    • Year and Date
      2008-01-24
    • Related Report
      2007 Annual Research Report
  • [Presentation] Dynamics of Complex Structure Formation of BSA and HEWL Studied by Light Scattering2008

    • Author(s)
      K., Kagam, et. al.
    • Organizer
      The 5th Open Workshop for Chemistry of Biological Processes Created by Water and Biomolecules
    • Place of Presentation
      奈良
    • Year and Date
      2008-01-24
    • Related Report
      2007 Annual Research Report
  • [Presentation] Observation of dynamics and fractal water/protein structures by dielectric spectroscopy2008

    • Author(s)
      S., Yagihara, et. al.
    • Organizer
      The 5th Open Workshop for Chemistry of Biological Processes Created by Water and Biomolecules
    • Place of Presentation
      奈良
    • Year and Date
      2008-01-24
    • Related Report
      2007 Annual Research Report
  • [Presentation] Ludwig-Soret Effect of Polymer Solutions and Gel-Particle Suspensions2007

    • Author(s)
      R., Kita
    • Organizer
      The 18th Symposium of The Materials Research Society of Japan
    • Place of Presentation
      Tokyo
    • Year and Date
      2007-12-09
    • Related Report
      2007 Annual Research Report
  • [Presentation] 誘電分光法によるポリメタクリル酸メチル/3-オクタノンの臨界挙動2007

    • Author(s)
      田村 雅生, 他
    • Organizer
      The 18th Symposium of The Materials Research Society of Japan
    • Place of Presentation
      東京
    • Year and Date
      2007-12-08
    • Related Report
      2007 Annual Research Report
  • [Presentation] 誘電測定による PNIR 知辺溶液の分子ダイナミクス2007

    • Author(s)
      中野 慎也, 他
    • Organizer
      The 18th Symposium of The Materials Research Society of Japan
    • Place of Presentation
      東京
    • Year and Date
      2007-12-08
    • Related Report
      2007 Annual Research Report
  • [Presentation] デキストランおよびプルラン水溶液のLudwig-soret効果と光散乱法による分子特性解析2007

    • Author(s)
      岸川 友貴, 他
    • Organizer
      The 18th Symposium of The Materials Research Society of Japan
    • Place of Presentation
      東京
    • Year and Date
      2007-12-08
    • Related Report
      2007 Annual Research Report
  • [Presentation] PniPAM水溶液の熱物質拡散現象2007

    • Author(s)
      佐藤 康弘, 他
    • Organizer
      The 18th Symposium of The Materials Research Society of Japan
    • Place of Presentation
      東京
    • Year and Date
      2007-12-08
    • Related Report
      2007 Annual Research Report
  • [Presentation] フラクタル構造表現による高分子溶媒混合系の特徴付け2007

    • Author(s)
      松本 佳祐, 他
    • Organizer
      The 18th Symposium of The Materials Research Society of Japan
    • Place of Presentation
      東京
    • Year and Date
      2007-12-08
    • Related Report
      2007 Annual Research Report
  • [Presentation] 光散乱法によるウシ血清アルブミン水溶液のゲル化現象研究2007

    • Author(s)
      鏡健 太郎, 他
    • Organizer
      The 18th Symposium of The Materials Research Society of Japan
    • Place of Presentation
      東京
    • Year and Date
      2007-12-08
    • Related Report
      2007 Annual Research Report
  • [Presentation] 動的光散乱法による鶏卵白リゾチウムのアミロイド線維形成の観察2007

    • Author(s)
      福澤 慎吾, 他
    • Organizer
      The 18th Symposium of The Materials Research Society of Japan
    • Place of Presentation
      東京
    • Year and Date
      2007-12-08
    • Related Report
      2007 Annual Research Report
  • [Presentation] ルードビッヒ・ソレー効果による分子特性解析2007

    • Author(s)
      喜多 理王, 他
    • Organizer
      東海大学産学連携フェア2007
    • Place of Presentation
      平塚
    • Year and Date
      2007-12-05
    • Related Report
      2007 Annual Research Report
  • [Presentation] 物質・生体中の水構造の観測とその応用2007

    • Author(s)
      八木 原晋, 他
    • Organizer
      東海大学産学連携フェア2007
    • Place of Presentation
      平塚
    • Year and Date
      2007-12-05
    • Related Report
      2007 Annual Research Report
  • [Presentation] 水とタンパク質の誘電分光とスローダイナミクス2007

    • Author(s)
      八木原 晋, 他
    • Organizer
      シンポジウム「テラヘルツ分光の最先端口〜多様化と進歩〜」
    • Place of Presentation
      葉山
    • Year and Date
      2007-11-21
    • Related Report
      2007 Annual Research Report
  • [Presentation] Dielectric relaxation and dynamic light scattering study of DNA in aqueous solutions2007

    • Author(s)
      S., K., Kundu, et. al.
    • Organizer
      物性化学のフロンティア2007
    • Place of Presentation
      東京
    • Year and Date
      2007-11-21
    • Related Report
      2007 Annual Research Report
  • [Presentation] 物質中の水構造の直接観測による物性・機能評価2007

    • Author(s)
      八木 原晋, 他
    • Organizer
      神奈川県ものづくり技術交流会
    • Place of Presentation
      海老名
    • Year and Date
      2007-10-20
    • Related Report
      2007 Annual Research Report
  • [Presentation] デキストランおよびプルラン水溶液のLudwig-soret効果と光散乱法による分子特性解析2007

    • Author(s)
      岸川 友貴, 他
    • Organizer
      第56回 高分子討論会
    • Place of Presentation
      名古屋
    • Year and Date
      2007-09-02
    • Related Report
      2007 Annual Research Report
  • [Presentation] 誘電分光法によるPNIPAM溶液の分子ダイナミクス2007

    • Author(s)
      中野 慎也, 他
    • Organizer
      第56回 高分子討論会
    • Place of Presentation
      名古屋
    • Year and Date
      2007-09-02
    • Related Report
      2007 Annual Research Report
  • [Presentation] 高分子溶液の共存曲線測定および光散乱法による臨界点近傍における振る舞い2007

    • Author(s)
      田村 雅生, 他
    • Organizer
      第56回 高分子討論会
    • Place of Presentation
      名古屋
    • Year and Date
      2007-09-02
    • Related Report
      2007 Annual Research Report
  • [Presentation] PMPAM溶液のLudwig-Soret効果と光散乱法によるPNIPAM溶液の特性解析2007

    • Author(s)
      佐藤 康弘, 他
    • Organizer
      第56回 高分子討論会
    • Place of Presentation
      名古屋
    • Year and Date
      2007-09-02
    • Related Report
      2007 Annual Research Report
  • [Presentation] 広帯域時空間構造解析手法による水構造のキャラクタリゼーション2007

    • Author(s)
      八木原 晋, 他
    • Organizer
      水と生体分子が織り成す生命現象の化学 合同班会議
    • Place of Presentation
      白馬
    • Year and Date
      2007-08-08
    • Related Report
      2007 Annual Research Report
  • [Presentation] APPLICATION OF BDS FOR AQUEOUS COMPLEX SYSTEMS-DIELECTRIC SPECTROSCOPY MONITORING AND QUALITY CONTROL2007

    • Author(s)
      八木原 晋, et. al.
    • Organizer
      NATO Advanced research Workshop, Meeting the challenges of the 21st Century-Novel Applications of Broadband Dielectric Spectroscopy
    • Place of Presentation
      ロシア・スズダリ
    • Year and Date
      2007-07-24
    • Related Report
      2007 Annual Research Report
  • [Presentation] Dynamic light scattering and dielectric spectroscopy of DNA and liposome samples in dilute solutions2007

    • Author(s)
      S., K., Kundu, et. al.
    • Organizer
      6th European Biophysics Congress London 2007
    • Place of Presentation
      London, UK
    • Year and Date
      2007-07-16
    • Related Report
      2007 Annual Research Report
  • [Presentation] 広い時空間領域で観る生体・分子複雑系の特徴2007

    • Author(s)
      八木原 晋
    • Organizer
      日本バイオレオロジー学会
    • Place of Presentation
      札幌
    • Year and Date
      2007-06-14
    • Related Report
      2007 Annual Research Report
  • [Presentation] 広帯域誘電分光(BDS)で観る高分子と水のダイナミックな構造2007

    • Author(s)
      八木原 晋
    • Organizer
      第29回高分子と水・分離に関する研究会講座
    • Place of Presentation
      東京
    • Year and Date
      2007-06-04
    • Related Report
      2007 Annual Research Report
  • [Presentation] Dielectric Relaxation and Dynamic Light Scattering Study of Liposome in the Aqueous Solution2007

    • Author(s)
      S., K., Kundu, et. al.
    • Organizer
      2007 MRS Spring Meeting
    • Place of Presentation
      San francisco, USA
    • Year and Date
      2007-04-11
    • Related Report
      2007 Annual Research Report
  • [Remarks]

    • URL

      http://pubweb.cc.u-tokai.ac.jp/yagihara/publication_yagihara.htm

    • Related Report
      2007 Annual Research Report

URL: 

Published: 2006-04-01   Modified: 2018-03-28  

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