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2013 Fiscal Year Final Research Report

Functional expression of mammalian ion channels and analysis of the molecular mechanisms

Research Project

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Project/Area Number 24650203
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field Neurochemistry/Neuropharmacology
Research InstitutionInstitute for Molecular Science

Principal Investigator

FURUTANI Yuji  分子科学研究所, 生命・錯体分子科学研究領域, 准教授 (80432285)

Co-Investigator(Kenkyū-buntansha) NAKAJO Koichi  生理学研究所, 分子生理研究系, 助教 (80390699)
Co-Investigator(Renkei-kenkyūsha) TSUKAMOTO Hisao  分子科学研究所, 生命・錯体分子科学研究領域, 助教 (90579814)
KIMURA Tetsunari  理化学研究所, 播磨事業所, 研究員 (70506906)
KUBO Yoshihiro  生理学研究所, 分子生理研究系, 教授 (80211887)
Project Period (FY) 2012-04-01 – 2014-03-31
Keywords赤外分光法 / イオンチャネル / 生物物理学 / 分子科学 / 振動分光法
Research Abstract

Ion channel proteins work for selective permeation of ions in response to various stimuli and regulate electrical signals in living organisms. To understand the molecular mechanisms of these channels, the precise structural information with atomic resolution is required. In this study, mammalian ion channel proteins, which are important targets in medical and pharmaceutical sciences, have been studied by attenuated total reflection (ATR) FT-IR spectroscopy which gives us precise molecular information. After screening of several ion channel proteins, we have succeeded to resolve amide I bands of selectivity filter of KCNK1 channel, which is involved in regulation of resting membrane potential of cell, by using ATR FT-IR spectroscopy.

  • Research Products

    (13 results)

All 2013 2012 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (10 results) (of which Invited: 7 results) Book (1 results) Remarks (1 results)

  • [Journal Article] ATR-FTIR Spectroscopy Revealed the Different Vibrational Modes of the Selectivity Filter Interacting with K^+ and Na^+ in the Open and Collapsed Conformations of the KcsA Potassium Channel2012

    • Author(s)
      Yuji Furutani, Hirofumi Shimizu, Yusuke Asai, Tetsuya Fukuda, Shigetoshi Oiki and Hideki Kandori
    • Journal Title

      J. Phys. Chem. Lett

      Volume: 3 Pages: 3806-10

    • DOI

      10.1021/jz301721f

    • Peer Reviewed
  • [Presentation] Stimulus-Induced Difference FTIR Spectroscopy on Ion-Channel and Ion-Pump Proteins2013

    • Author(s)
      Yuji Furutani
    • Organizer
      Sixth Korea-Japan Seminars on Biomolecular Sciences : Experiments and Simulations
    • Place of Presentation
      Okazaki Conference Center, Okazaki, Japan
    • Year and Date
      20131125-27
    • Invited
  • [Presentation] 哺乳類two-pore型カリウムチャネルTWIK-1の全反射赤外分光解析2013

    • Author(s)
      塚本寿夫、中條浩一、久保義弘、古谷祐詞
    • Organizer
      第51回日本生物物理学会年会
    • Place of Presentation
      京都(京都国際会議場)
    • Year and Date
      20131028-30
  • [Presentation] Water Molecules and Ions in Membrane Proteins Studied by FTIR Spectroscopy2013

    • Author(s)
      Yuji Furutani
    • Organizer
      Annual Meeting on Photochemistry 2013
    • Place of Presentation
      Ehime University, Matsuyama, Japan
    • Year and Date
      20130911-13
    • Invited
  • [Presentation] Water Molecules and Ions in Membrane Proteins Studied by Stimulus-induced Difference FTIR Spectroscopy2013

    • Author(s)
      Yuji Furutani
    • Organizer
      Seventh International Conference on Advanced Vibrational Spectroscopy
    • Place of Presentation
      Kobe Convention Center, Kobe, Japan
    • Year and Date
      20130825-30
    • Invited
  • [Presentation] Stimulus-Induced Difference FTIR Spectroscopy Reveals Structural Dynamics thしていることと一致している。さらに、現在of Membrane Proteins2013

    • Author(s)
      Yuji Furutani
    • Organizer
      Symposium on Molecular Science Hierarchical Structure from Quantum to Functions of Biological Systems
    • Place of Presentation
      Hotel Kitano Plaza Rokkoso, Kobe, Japan
    • Year and Date
      20130703-05
    • Invited
  • [Presentation] Water Molecules and Ions in Membrane Proteins Studied by FTIR th来のカリウムチャネルの発現コンストラクSpectroscopy2013

    • Author(s)
      Yuji Furutani
    • Organizer
      the 2012 OCARINA Annual International Meeting
    • Place of Presentation
      Osaka City Univ. Media Center, Osaka, Japan
    • Year and Date
      2013-05-04
    • Invited
  • [Presentation] 哺乳動物カリウムチャネルの赤外分光解析2013

    • Author(s)
      塚本寿夫、中條浩一、久保義弘、古谷祐詞
    • Organizer
      平成24年度生物物理学会中部支部講演会
    • Place of Presentation
      名古屋(名古屋大学)(口頭)
    • Year and Date
      2013-02-19
  • [Presentation] Ion-protein Interactions Studied by ATR-FTIR Spectroscopy2012

    • Author(s)
      Yuji Furutani
    • Organizer
      17^<th> Malaysian Chemical Congress (17MCC)
    • Place of Presentation
      Putra World Trade Centre, Kuala Lumpur, Malaysia
    • Year and Date
      20121015-17
    • Invited
  • [Presentation] 生物物理学的解析を目指した、哺乳培養細胞を用いた哺乳類カリウムイオンチャネルの大量発現の試み2012

    • Author(s)
      塚本寿夫、中條浩一、久保義弘、古谷祐詞
    • Organizer
      第50回日本生物物理学会年会
    • Place of Presentation
      名古屋(名古屋大学)(ポスター)
    • Year and Date
      20120922-24
  • [Presentation] Ion-Protein Interactions Studied by ATR-FTIR Spectroscopy2012

    • Author(s)
      Yuji Furutani
    • Organizer
      The 16th East Asian Workshop on Chemical Dynamics
    • Place of Presentation
      National Tsing Hua University, Hsinchu, Taiwan
    • Year and Date
      20120416-19
    • Invited
  • [Book] 「微生物型ロドプシンの光誘起イオン輸送メカニズムの解明」,オプトジェネティクス-光光学と遺伝学による行動制御技術の最前線-2013

    • Author(s)
      古谷祐詞
    • Total Pages
      69-78
    • Publisher
      NTS
  • [Remarks]

    • URL

      http://groups.ims.ac.jp/organization/furutani_g/

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Published: 2015-06-25  

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