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アクアポリンを模した淡水化膜の設計

Research Project

Project/Area Number 15J02109
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Thermal engineering
Research InstitutionKeio University

Principal Investigator

山本 詠士  慶應義塾大学, 理工学部, 特別研究員(DC2)

Project Period (FY) 2015-04-24 – 2017-03-31
Project Status Declined (Fiscal Year 2016)
Budget Amount *help
¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 2016: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2015: ¥900,000 (Direct Cost: ¥900,000)
Keywords分子動力学シミュレーション / 淡水化 / アクアポリン
Outline of Annual Research Achievements

近年の人口増加,工業化,環境問題から純水の需要が増加しており,効率的かつ選択的な淡水化技術の開発が望まれている.本研究目的は,分子動力学シミュレーションによって,水分子のみを透過させる膜タンパク質であるアクアポリンの水分子透過メカニズムを分子レベルで解明し,得られた知見をもとに淡水化技術に応用できる新規の淡水化膜を設計することである.まず,アクアポリンの水分子透過メカニズムを分子レベルで解明するために,アクアポリン/細胞膜/水分子/イオンの系について10万原子以上,1マイクロ秒の分子動力学シミュレーションを行った.アクアポリンの水分子の取り込み口の機構に着目した.アクアポリンの細孔口付近の親水基や疎水基のマッピングを行い,水分子がどの部分と相互作用して影響を受けているのかを,水分子の回転緩和時間や拡散係数,滞在時間等を解析して調べた.イオン原子の周りを覆っている水和殻が,入口付近に近づいた際に,周りのアミノ酸残基との相互作用でどのように変化するのか検証した.
また、平成28年度の課題であったAQPを模した淡水化膜設計の研究の一環として,カーボンナノチューブによって細孔が空いたグラフェンシート(二重膜)と水/メタノール混合溶液系の分子動力学シミュレーションを行った.電場の効果によってカーボンナノチューブ内で水分子が螺旋構造を形成することを発見した.また,電場の効果による混合溶液からのメタノールの単離について検証した.

Research Progress Status

翌年度、交付申請を辞退するため、記入しない。

Strategy for Future Research Activity

翌年度、交付申請を辞退するため、記入しない。

Report

(1 results)
  • 2015 Annual Research Report
  • Research Products

    (25 results)

All 2016 2015 Other

All Int'l Joint Research (1 results) Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (20 results) (of which Int'l Joint Research: 13 results)

  • [Int'l Joint Research] オックスフォード大学(英国)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] アクアポリンの1/f ゆらぎと水分子透過2016

    • Author(s)
      山本詠士, 泰岡顕治
    • Journal Title

      高分子

      Volume: 65 Pages: 175-176

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Anomalous Dynamics of a Lipid Recognition Protein on a Membrane Surface2015

    • Author(s)
      Eiji Yamamoto, Antreas C. Kalli, Takuma Akimoto, Kenji Yasuoka and Mark S. P. Sansom
    • Journal Title

      Scientific Reports

      Volume: 5 Issue: 1 Pages: 18245-18245

    • DOI

      10.1038/srep18245

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Water-methanol separation with carbon nanotubes and electric fields2015

    • Author(s)
      Winarto, Daisuke Takaiwa, Eiji Yamamoto, and Kenji Yasuoka
    • Journal Title

      Nanoscale

      Volume: 7 Issue: 29 Pages: 12659-12665

    • DOI

      10.1039/c5nr02182k

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Structures of water molecules in carbon nanotubes under electric fields2015

    • Author(s)
      Winarto, Daisuke Takaiwa, Eiji Yamamoto, and Kenji Yasuoka
    • Journal Title

      J. Chem. Phys.

      Volume: 142 Issue: 12

    • DOI

      10.1063/1.4914462

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Presentation] Water transport into protein inside in active rhodopsin: a molecular dynamics study2016

    • Author(s)
      Katsufumi Tomobe, Eiji Yamamoto, Kholmirzo Kholmurodov, and Kenji Yasuoka
    • Organizer
      The first pacific rim thermal engineering conference
    • Place of Presentation
      Hawaii(USA)
    • Year and Date
      2016-03-13
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Water dynamics and ion interaction at channel entrance of aquaporin 12016

    • Author(s)
      Eiji Yamamoto, Takuma Akimoto, Masato Yasui, and Kenji Yasuoka
    • Organizer
      Biophysical Society 60th Annual Meeting
    • Place of Presentation
      Los Angeles(USA)
    • Year and Date
      2016-02-27
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Molecular dynamics study of ganglioside GM3/DPPC membrane by using coarse-grained model2016

    • Author(s)
      Kento Inoue, Eiji Yamamoto, Daisuke Takaiwa, Kenji Yasuoka, and Masuhiro Mikami
    • Organizer
      Biophysical Society 60th Annual Meeting
    • Place of Presentation
      Los Angeles(USA)
    • Year and Date
      2016-02-27
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Vibrations of water molecules in monosaccharide hydration shell by DFT-MD studies2016

    • Author(s)
      Katsufumi Tomobe, Takashi Iijima, Eiji Yamamoto, Masato Yasui, and Kenji Yasuoka
    • Organizer
      Biophysical Society 60th Annual Meeting
    • Place of Presentation
      Los Angeles(USA)
    • Year and Date
      2016-02-27
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Investigating the interactions of peripheral membrane proteins with model membranes using high throughput molecular dynamics simulations2016

    • Author(s)
      Antreas C. Kalli, Eiji Yamamoto, Fiona B. Naughton, and Mark S. P. Sansom
    • Organizer
      Biophysical Society 60th Annual Meeting
    • Place of Presentation
      Los Angeles(USA)
    • Year and Date
      2016-02-27
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of electric field on water molecules confined in carbon nanotubes2015

    • Author(s)
      Winarto, Daisuke Takaiwa, Eiji Yamamoto, and Kenji Yasuoka
    • Organizer
      The 2015 International Chemical Congress of Pacific Basin Societies (Pacifichem 2015)
    • Place of Presentation
      Hawaii(USA)
    • Year and Date
      2015-12-15
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] アクアポリンの水分子透過に関する分子シミュレーション2015

    • Author(s)
      山本詠士, 秋元琢磨, 安井正人, 泰岡顕治
    • Organizer
      第29回分子シミュレーション討論会
    • Place of Presentation
      朱鷺メッセ(新潟県・新潟市)
    • Year and Date
      2015-11-30
    • Related Report
      2015 Annual Research Report
  • [Presentation] 単糖水和殻中の水分子振動スペクトル解析単糖水和殻中の水分子振動スペクトル解析2015

    • Author(s)
      友部勝文,飯島崇,山本詠士,安井正人,泰岡顕治
    • Organizer
      第29回分子シミュレーション討論会
    • Place of Presentation
      朱鷺メッセ(新潟県・新潟市)
    • Year and Date
      2015-11-30
    • Related Report
      2015 Annual Research Report
  • [Presentation] 粗視化分子動力学シミュレーションを用いたGM3/DPPC膜の解析2015

    • Author(s)
      井上堅斗,山本詠士,高岩大輔,泰岡顕治,三上益弘
    • Organizer
      第29回分子シミュレーション討論会
    • Place of Presentation
      朱鷺メッセ(新潟県・新潟市)
    • Year and Date
      2015-11-30
    • Related Report
      2015 Annual Research Report
  • [Presentation] Structures of water molecules in carbon nanotubes induced with electric fields and its application for water-alcohol separation2015

    • Author(s)
      Winarto, Daisuke Takaiwa, Eiji Yamamoto, and Kenji Yasuoka
    • Organizer
      International Conference on Mechanical and Manufacturing Engineering (ICMME)
    • Place of Presentation
      Yogyakarta(Indonesia)
    • Year and Date
      2015-11-05
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Formation of ordered structures of water in carbon nanotubes with electric fields2015

    • Author(s)
      Winarto, Daisuke Takaiwa, Eiji Yamamoto, and Kenji Yasuoka
    • Organizer
      International Symposium on Current Progress in Mathematics and Sciences (ISCPMS)
    • Place of Presentation
      Depok(Indonesia)
    • Year and Date
      2015-11-03
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] アクアポリン細孔口での水分子とイオンの振る舞い2015

    • Author(s)
      山本詠士, 秋元琢磨, 安井正人, 泰岡顕治
    • Organizer
      第36回日本熱物性シンポジウム
    • Place of Presentation
      東北大学(宮城県・仙台市)
    • Year and Date
      2015-10-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] 糖鎖周りの水分子のスペクトル解析2015

    • Author(s)
      友部勝文,飯島崇,山本詠士,安井正人,泰岡顕治
    • Organizer
      第36回日本熱物性シンポジウム
    • Place of Presentation
      東北大学(宮城県・仙台市)
    • Year and Date
      2015-10-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] Water dynamics at channel entrance of aquaporin 12015

    • Author(s)
      山本詠士,秋元琢磨,安井正人,泰岡顕治
    • Organizer
      第53回日本生物物理学会年会
    • Place of Presentation
      金沢大学(石川県・金沢市)
    • Year and Date
      2015-09-13
    • Related Report
      2015 Annual Research Report
  • [Presentation] Structure-property of ganglioside GM3/DPPC membranes using coarse-grained molecular dynamics simulation2015

    • Author(s)
      井上堅斗,山本詠士,高岩大輔,泰岡顕治,三上益弘
    • Organizer
      第53回日本生物物理学会年会
    • Place of Presentation
      金沢大学(石川県・金沢市)
    • Year and Date
      2015-09-13
    • Related Report
      2015 Annual Research Report
  • [Presentation] Elucidating the interactions of peripheral membrane proteins with phosphatidylinositol phosphates via a high throughput molecular dynamics simulations approach2015

    • Author(s)
      Antreas C. Kalli, Eiji Yamamoto, Fiona Naughton, and Mark S. P. Sansom
    • Organizer
      Signalling 2015: Cellular Functions of Phosphoinositides and Inositol Phosphates
    • Place of Presentation
      Cambridge(UK)
    • Year and Date
      2015-09-01
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Pathway for water molecule exchange between protein inside and bulk on active rhodopsin2015

    • Author(s)
      Katsufumi Tomobe, Eiji Yamamoto, Kholmirzo Kholmurodov, and Kenji Yasuoka
    • Organizer
      4th IGER International Symposium on Science of Molecular Assembly and Biomolecular Systems
    • Place of Presentation
      名古屋大学(愛知県・名古屋市)
    • Year and Date
      2015-08-31
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Molecular dynamics simulations of GM3/DPPC membrane with coarse-grained model2015

    • Author(s)
      Kento Inoue, Eiji Yamamoto, Daisuke Takaiwa, Kenji Yasuoka, and Masuhiro Mikami
    • Organizer
      4th IGER International Symposium on Science of Molecular Assembly and Biomolecular Systems
    • Place of Presentation
      名古屋大学(愛知県・名古屋市)
    • Year and Date
      2015-08-31
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Water confined in carbon nanotubes under the influence of electric fields for water-alcohol separation2015

    • Author(s)
      Winarto, Daisuke Takaiwa, Eiji Yamamoto, and Kenji Yasuoka
    • Organizer
      4th IGER International Symposium on Science of Molecular Assembly and Biomolecular Systems
    • Place of Presentation
      名古屋大学(愛知県・名古屋市)
    • Year and Date
      2015-08-31
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Preferential Adsorption of Water-Methanol Mixture in Carbon Nanotubes with Eletric Field2015

    • Author(s)
      Winarto, Daisuke Takaiwa, Eiji Yamamoto, and Kenji Yasuoka
    • Organizer
      5th International Symposium on Micro and Nano Technology
    • Place of Presentation
      Calgary(Canada)
    • Year and Date
      2015-05-18
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research

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Published: 2015-11-26   Modified: 2024-03-26  

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