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Studies on structural fluctuation of the endoplasmic reticulum

Research Project

Project/Area Number 17K07311
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Structural biochemistry
Research InstitutionFukushima Medical University

Principal Investigator

WADA IKUO  福島県立医科大学, 医学部, 教授 (40182969)

Project Period (FY) 2017-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords小胞体 / 構造揺動 / 拡散 / 微小管 / ゆらぎ / 蛍光相関解析 / 分泌 / 揺らぎ / 分子混雑度 / 膜タンパク質 / フォールディング / 揺動 / タンパク質拡散 / 細胞骨格 / 高分子拡散 / 蛍光イメージング / 一分子計測 / Molecular crowding
Outline of Final Research Achievements

We analyzed microdynamics exhibited by the endoplasmic reticulum (ER) in living and semi-permeable cells. We found that the fluctuations were triggered by reactions requiring ATP or NADPH from membrane components, which were related to the softness of the ER membranes. While protein diffusion in the lumen is relatively constant over a wide range of temperature, unlike in solution, the microstructural fluctuation showed the same property. Since the motion was controlled by binding to microtubules via CLIMP-63, it is conceivable that it functions to maintain proper flow in the ER lumen. Interestingly, we found that anti-inflammatory, anti-oxidative reagent, ebselen, abolishes the micromotion of the ER. Given that ebselen traps peroxynitrite, the NADPH driven micromotion may involve related reactions.

Academic Significance and Societal Importance of the Research Achievements

小胞体では分泌蛋白の新生、脂質合成、異物代謝など多くの反応をおこなう。その内腔は数十nmの厚みからなる狭い空間で、高い混雑度を持つ。この構造が示す微小な構造揺動が反応自体を進める可能性について、本研究で調べた。得られた知見から、小胞体内では反応の基盤となるタンパク質の動きは温度依存性を示さないという特性を見出し、これには構造の細かな揺れが関連し、小胞体内反応で恒常性を保持する機構と考えられる。この動きは小胞体膜自体で発生するもので、エネルギーあるいは一電子還元によって生み出されていた。またこの研究過程で多くの先端的な技法を用いたが、これらが活用されて多くの共同研究成果も得られた。

Report

(6 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (27 results)

All 2022 2021 2020 2019 2018 2017

All Journal Article (14 results) (of which Peer Reviewed: 13 results,  Open Access: 6 results) Presentation (13 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] ER-to-Golgi trafficking of procollagen III via conventional vesicular and tubular carriers.2022

    • Author(s)
      Hirata Y, Matsui Y, Wada I, Hosokawa N
    • Journal Title

      Molecular biology of the cell

      Volume: 33 Issue: 3 Pages: 1-13

    • DOI

      10.1091/mbc.e21-07-0372

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Deletion of the initial methionine codon of the Tmem95 gene causes subfertility, but not complete infertility, in male mice.2022

    • Author(s)
      Inoue N, Wada I
    • Journal Title

      Biology of reproduction

      Volume: 106 Issue: 3 Pages: 378-381

    • DOI

      10.1093/biolre/ioab246

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] IZUMO family member 3, IZUMO3, is involved in male fertility through the acrosome formation.2021

    • Author(s)
      Inoue N, Satouh Y, Wada I
    • Journal Title

      Molecular reproduction and development

      Volume: 88 Issue: 7 Pages: 479-481

    • DOI

      10.1002/mrd.23520

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Phosphorylation of human phospholipase A1 DDHD1 at newly identified phosphosites affects its subcellular localization.2021

    • Author(s)
      Matsumoto N, Nemoto-Sasaki Y, Oka S, Arai S, Wada I, Yamashita A
    • Journal Title

      The Journal of biological chemistry

      Volume: 297 Issue: 1 Pages: 100851-100851

    • DOI

      10.1016/j.jbc.2021.100851

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evolutionarily conserved sperm factors, DCST1 and DCST2, are required for gamete fusion.2021

    • Author(s)
      Inoue N, Hagihara Y, Wada I
    • Journal Title

      eLife

      Volume: 10

    • DOI

      10.7554/elife.66313

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Visualization of Procollagen IV Reveals ER-to-Golgi Transport by ERGIC-independent Carriers2020

    • Author(s)
      Yuto Matsui, Yukihiro Hirata, Ikuo Wada, Nobuko Hosokawa
    • Journal Title

      Cell Structure and Function

      Volume: 45 Issue: 2 Pages: 107-119

    • DOI

      10.1247/csf.20025

    • NAID

      130007879591

    • ISSN
      0386-7196, 1347-3700
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Unveiling a novel function of CD9 in surface compartmentalization of oocytes2020

    • Author(s)
      Naokazu Inoue, Takako Saito, Ikuo Wada
    • Journal Title

      Development

      Volume: 147 Issue: 15

    • DOI

      10.1242/dev.189985

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] SDF2-like protein 1 (SDF2L1) regulates the endoplasmic reticulum localization and chaperone activity of ERdj3 protein.2019

    • Author(s)
      Hanafusa K, Wada I, Hosokawa N
    • Journal Title

      The Journal of biological chemistry

      Volume: 294 Issue: 50 Pages: 19335-19348

    • DOI

      10.1074/jbc.ra119.009603

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Integrative genome analysis identified the KANNO blood group antigen as prion protein2019

    • Author(s)
      Omae Y, Ito S, Takeuchi M, Isa K, Ogasawara K, Kawabata K, Oda A, Kaito S, Tsuneyama H, Uchikawa M, Wada I, Ohto H, Tokunaga K
    • Journal Title

      Transfusion

      Volume: 59 Issue: 7 Pages: 2429-2435

    • DOI

      10.1111/trf.15319

    • Related Report
      2019 Research-status Report
  • [Journal Article] Svp26 facilitates ER exit of mannosyltransferases Mnt2 and Mnt3 in <i>Saccharomyces cerevisiae</i>2019

    • Author(s)
      Tanabe Yuuki, Arai Seisuke, Wada Ikuo, Adachi Hiroyuki, Kamakura Takashi, Yoda Koji, Noda Yoichi
    • Journal Title

      The Journal of General and Applied Microbiology

      Volume: 65 Issue: 4 Pages: 180-187

    • DOI

      10.2323/jgam.2018.09.001

    • NAID

      130007706591

    • ISSN
      0022-1260, 1349-8037
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Phosphorylation of SNAP-23 at Ser95 causes a structural alteration and negatively regulates Fc receptor-mediated phagosome formation and maturation in macrophages2018

    • Author(s)
      Sakurai C, Itakura M, Kinoshita D, Arai S, Hashimoto H, Wada I, Hatsuzawa K
    • Journal Title

      Mol Biol Cell

      Volume: 29 Issue: 14 Pages: 1753-1762

    • DOI

      10.1091/mbc.e17-08-0523

    • NAID

      120007170664

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Monitoring dimeric status of IZUMO1 during the acrosome reaction in living spermatozoon2018

    • Author(s)
      Inoue N, Wada I
    • Journal Title

      Cell Cycle

      Volume: 17 Issue: 11 Pages: 1279-1285

    • DOI

      10.1080/15384101.2018.1489181

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] ER-resident protein 46 (ERp46) triggers the mannose-trimming activity of ER degradation-enhancing α-mannosidase-like protein 3 (EDEM3)2018

    • Author(s)
      Yu S, Ito S, Wada I, Hosokawa N
    • Journal Title

      J Biol Chem

      Volume: 293 Issue: 27 Pages: 10663-10674

    • DOI

      10.1074/jbc.ra118.003129

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Endoplasmic reticulum proteins SDF2 and SDF2L1 act as components of the BiP chaperone cycle to prevent protein aggregation.2017

    • Author(s)
      Fujimori T, Suno R, Iemura SI, Natsume T, Wada I, Hosokawa N
    • Journal Title

      Genes to cells

      Volume: 8 Issue: 8 Pages: 684-698

    • DOI

      10.1111/gtc.12506

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] Elucidation of the mechanism of substantia nigra astroglial2022

    • Author(s)
      Masato Ogura, Ikuo Wada
    • Organizer
      第95回日本薬理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Photon counting multiple histograms (PCMH) analysis of the ERdj3-SDF2L1 complex2020

    • Author(s)
      Kuiper Bastiaan Pepijn, Hanafusa Ken, Hosokawa Nobuko , Wada Ikuo
    • Organizer
      日本分子生物学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Izumo1遺伝子の選択的スプライシングによってマウスの配偶子融合は保証される2020

    • Author(s)
      齋藤 貴子, 和田 郁夫,井上 直和
    • Organizer
      日本動物学会 第90回
    • Related Report
      2020 Research-status Report
  • [Presentation] Efficient ER Exit of Mnn4 Is Dependent on Both Svp26 and Mnn6 in Saccharomyces cerevisiae.2020

    • Author(s)
      Noda Y, Arai S, Wada I, Yoda K
    • Organizer
      International conference on yeast genetics and molecular biology
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Sperm IZUMO1 dependent gamete fusion influences male fertility in mice2020

    • Author(s)
      Takako Saito, Ikuo Wada and Naokazu Inoue
    • Organizer
      Gordon Research Conference
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] ライブイメージング法を用いたIII型コラーゲン細胞内輸送メカニズムの解析2019

    • Author(s)
      平田幸大、松井優人、和田郁夫、細川暢子
    • Organizer
      第19回日本蛋白質科学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] Sperm IZUMO1 dependent gamete fusion influences male fertility in mice2019

    • Author(s)
      Takako Saito, Ikuo Wada and Naokazu Inoue
    • Organizer
      Gordon Research Conference
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Efficient ER Exit of Mnn4 Is Dependent on Both Svp26 and Mnn6 in Saccharomyces cerevisiae2019

    • Author(s)
      Noda Y, Arai S, Wada I, Yoda K
    • Organizer
      International conference on yeast genetics and molecular biology
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Live-cell imaging of antitrypsin Z-variant polymer inclusion2018

    • Author(s)
      荒井斉祐、鈴木貴久、和田郁夫
    • Organizer
      第70回日本細胞生物学会
    • Related Report
      2018 Research-status Report
  • [Presentation] ERp46によるEDEM3マンノーストリミング活性の制御機構2018

    • Author(s)
      細川暢子、Yu Shangyu、和田郁夫
    • Organizer
      第91回日本生化学会大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 小胞体膜の微小揺動に関する研究2017

    • Author(s)
      荒井斉祐、橋本仁志、和田郁夫
    • Organizer
      第69回日本細胞生物学会
    • Related Report
      2017 Research-status Report
  • [Presentation] Improvement of fluorescence proteins suitable for live-cell imaging in the oxidative environment in plant cells2017

    • Author(s)
      西村 浩二, 久我 一弘, 岩瀬 駿志, 和田 郁夫, 清水 英寿, 地阪 光生, 横田 一成, 中川 強
    • Organizer
      第59回日本植物生理学会
    • Related Report
      2017 Research-status Report
  • [Presentation] SEL1Lタンパク質による小胞体関連分解の調節機構2017

    • Author(s)
      細川暢子、和田郁夫
    • Organizer
      2017年度生命科学系学会合同年次大会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2025-11-20  

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