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Understanding of mechanism of nuclear pore formation during cell cycle.

Research Project

Project/Area Number 19770182
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Cell biology
Research InstitutionThe Institute of Physical and Chemical Research

Principal Investigator

MAESHIMA Kazuhiro  The Institute of Physical and Chemical Research, 今本細胞核機能研究室, 専任研究員 (00392118)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,880,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥480,000)
Fiscal Year 2008: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2007: ¥1,800,000 (Direct Cost: ¥1,800,000)
Keywords細胞核 / 核膜孔 / ライブイメージング / 核膜 / イメージング / インスレーター
Research Abstract

核膜孔複合体は、核膜上の巨大な超分子複合体である。この核膜孔複合体が、どのように形成されるのかは未だなぞのままである。このため、代表者らは代表的な蛋白質に蛍光タグを付け、HeLa細胞の安定発現株を作製した。これらの細胞では核膜孔がラベルされ、そのダイナミクスをライブ観察することが可能となった。さらに、レーザーをもちいて新たに形成された核膜孔を可視化できるようになった。この手法と細胞周期阻害剤を組み合わせ、間期の核膜孔形成が、細胞周期によって厳密にコントロールされていることが示された。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (33 results)

All 2009 2008 2007

All Journal Article (18 results) (of which Peer Reviewed: 6 results) Presentation (15 results)

  • [Journal Article] Three-Dimensional Visualization of a Human Chromosome Using Coherent X-ray Diffraction. (4 pages)2009

    • Author(s)
      Nishino, Y., Takahashi, Y., Imamoto, N., Ishikawa,T., and Maeshima, K.
    • Journal Title

      Physical Review Letters 102

      Pages: 18101-18101

    • Related Report
      2008 Final Research Report
  • [Journal Article] Three-Dimensional Visualization of a Human Chromosome Using Coherent X-ray Diffraction2009

    • Author(s)
      Nishino, Y.
    • Journal Title

      Physical Review Letters 102

      Pages: 18101-18101

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Analysis of cryo-electron microscopy images does not support the existence of 30-nm chromatin fibers in mitotic chromosomes in situ.2008

    • Author(s)
      Eltsov, M., MacLellan, K.M., Maeshima, K., Frangakis, A.S., and Dubochet, J. (Three authors have equal contribution)
    • Journal Title

      Proc. Natl. Acad. Sci. USA 105

      Pages: 19732-7

    • Related Report
      2008 Final Research Report
  • [Journal Article] Ion irradiation in liquid of μm3 region for cell surgery. (3 pages)2008

    • Author(s)
      Iwai, Y., Ikeda, T., Kojima, T.-M., Yamazaki, Y., Maeshima, K., Imamoto, N., Kobayashi, T., Nebiki, T., Narusawa, T., Pokhil, G.-P.
    • Journal Title

      Applied Physics Letters 92

      Pages: 23509-23509

    • Related Report
      2008 Final Research Report
  • [Journal Article] Packaging the genome : the structure of mitotic chromosomes.2008

    • Author(s)
      Maeshima, K., and Eltsov, M.
    • Journal Title

      Journal of Biochemistry 143

      Pages: 145-153

    • NAID

      10024907806

    • Related Report
      2008 Final Research Report
  • [Journal Article] Cohesin is required for the transcriptional insulator function of CTCF binding sites.2008

    • Author(s)
      Wendt, K.S., Yoshida, K., Itoh, T., Bando, M., Koch, B., Schirghuber, E., Tsutsumi, S., Nagae, G., Ishihara, Ko., Mishiro, T., Yahata, K., Imamoto, F., Aburatani, H., Nakao, M., Imamoto, N., Maeshima, K., Shirahige, K., and Peters, J.-M.
    • Journal Title

      Nature (Article) 451

      Pages: 796-801

    • Related Report
      2008 Final Research Report
  • [Journal Article] Importin-beta .and small GTPase Ran mediate chromosome loading of human chromokinesin Kid.2008

    • Author(s)
      Tahara, K., Takagi, M., Ohsugi, M., Sone, T. Nishiumi, F., Maeshima, K., Horiuchi, Y., Tokai-Nishizumi, N., Imamoto, F., Yamamoto, T., Kose, S., and Imamoto, N.
    • Journal Title

      Journal of Cell Biology 180

      Pages: 493-596

    • Related Report
      2008 Final Research Report
  • [Journal Article] 染色体の内部構造を見る2008

    • Author(s)
      前島一博
    • Journal Title

      細胞工学別冊「電子顕微鏡で読み解く生命のなぞ(ナノワールドに迫るパワフル技術入門)」

      Pages: 121-129

    • Related Report
      2008 Final Research Report
  • [Journal Article] 姉妹染色体間の接着因子、コヒーシンの新たな機能2008

    • Author(s)
      前島一博、吉田圭介、白髭克彦
    • Journal Title

      蛋白質核酸酵素 53

      Pages: 1337-1344

    • Related Report
      2008 Final Research Report
  • [Journal Article] 細胞周期における核膜孔のダイナミクス2008

    • Author(s)
      前島一博、今本尚子
    • Journal Title

      生化学 2月号

      Pages: 118-124

    • NAID

      10021190969

    • Related Report
      2008 Final Research Report
  • [Journal Article] Analysis of cryo-electron microscopy images does not support the existence of 30-nm chromatin fibers in mitdtic chromosomes in situ2008

    • Author(s)
      Eltsov, M.
    • Journal Title

      Proc. Natl. Acad. Sci. USA 105

      Pages: 19732-7

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ion Irradiation in liquid of μm3 region for cell surgery2008

    • Author(s)
      Iwai, Y.
    • Journal Title

      Applied Physics Letters 92

      Pages: 23509-23509

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cohesin is required for the transcriptional insulator function of CTCF binding sites.2008

    • Author(s)
      Wendt, K. S.
    • Journal Title

      Nature (Article) 451

      Pages: 796-801

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] cHS4 insulator-mediated alleviation of promoter interference during cell based expression of tandemly associated transgenes.2007

    • Author(s)
      Yahata, K., Maeshima, K., Sone, T., Ando, T., Okabe, M., Imamoto, N., and Imamoto, F.
    • Journal Title

      Journal of Molecular Biology 374

      Pages: 580-90

    • Related Report
      2008 Final Research Report
  • [Journal Article] TWO DISTINCT HUMAN POM121 GENES : Requirement for the Formation of Nuclear Pore Complexes.2007

    • Author(s)
      Funakoshi, T., Maeshima, K., Yahata, K., Sugano, S., Imamoto, F., and Imamoto, N.
    • Journal Title

      FEBS Letters 581

      Pages: 4910-6

    • Related Report
      2008 Final Research Report
  • [Journal Article] インスレーター/バウンダリー配列を用いた複数の導入遺伝子を安定的に発現させるシステム2007

    • Author(s)
      前島一博, 矢幡一英, 今本文男, 今本尚子
    • Journal Title

      羊土社バイオテクノロジージャーナル 9-10月号

      Pages: 557-563

    • Related Report
      2008 Final Research Report
  • [Journal Article] cHS4 insulator-mediated alleviation of promoter interference during cell based expression of tandemly associated transgenes2007

    • Author(s)
      Yahata, K.
    • Journal Title

      Journal of Molecular Biology 374

      Pages: 580-90

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] TWO DISTINCT HUMAN POM121 GENES: Requirement for the Formation of Nuclear Pore Complexes2007

    • Author(s)
      Funakoshi, T.
    • Journal Title

      FEBS Letters 581

      Pages: 4910-6

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] Global structure of chromatins : irregular folding of nucleosome fibers.2008

    • Author(s)
      Maeshima, K.
    • Organizer
      日本分子生物学会・生化学会合同年会(BMB2008)シンポジウム 転写シグナリングと複合体ダイナミクスの新展開
    • Place of Presentation
      神戸
    • Year and Date
      2008-12-11
    • Related Report
      2008 Final Research Report
  • [Presentation] Global structure of chromatins : irregular folding of nucleosome fibers2008

    • Author(s)
      Maeshima, K.
    • Organizer
      日本分子生物学会・生化学会合同年会
    • Place of Presentation
      神戸
    • Year and Date
      2008-12-11
    • Related Report
      2008 Annual Research Report
  • [Presentation] How is genome DNA compacted into a mitotic chromosome?2008

    • Author(s)
      Maeshima, K.
    • Organizer
      The 1275th Biological Symposium, National Institute of Genetics (Idenken)
    • Place of Presentation
      Mishima
    • Year and Date
      2008-12-04
    • Related Report
      2008 Final Research Report
  • [Presentation] 分裂期染色体内のヒトゲノムDNAの高次構造2008

    • Author(s)
      前島一博
    • Organizer
      九州工業大学情報工学部生命情報工学科講演会
    • Place of Presentation
      福岡県飯塚
    • Year and Date
      2008-08-05
    • Related Report
      2008 Final Research Report
  • [Presentation] 分裂期染色体の構造2008

    • Author(s)
      前島一博、伊藤和輝、 渡辺愛、 日原さえら、Mikhail Eltsov、 今本尚子
    • Organizer
      日本細胞生物学会年会ミニシンポジウム 「細胞機能の3次元ナノイメージング」
    • Place of Presentation
      横浜
    • Year and Date
      2008-06-29
    • Related Report
      2008 Final Research Report
  • [Presentation] mitotic chromosome structure : Irregular folding of nucleosome fibers.2008

    • Author(s)
      Maeshima, K.
    • Organizer
      Symposium, "molecular regulation of Chromosome assembly and Segregation", The 3rd Asian Chromosome Colloquium
    • Place of Presentation
      Osaka
    • Related Report
      2008 Final Research Report
  • [Presentation] 分裂期染色体の構造2008

    • Author(s)
      前島一博
    • Organizer
      大阪大学・蛋白質研究所セミナー「クロマチン-構造とダイナミクス」
    • Place of Presentation
      大阪
    • Related Report
      2008 Final Research Report
  • [Presentation] Mitotic chromosome structure: irregular folding of nucleosome fiber.2008

    • Author(s)
      Maeshima, K., Ito, K., Eltsov, M., Watanabe, A., Hihara, S., Dubochet, J., and Imamoto, N.
    • Organizer
      International Symposium on Chromosome Dynamics
    • Place of Presentation
      Ise
    • Related Report
      2008 Final Research Report
  • [Presentation] 高輝度放射光をもちいたヒト染色体の構造解析2008

    • Author(s)
      前島一博
    • Organizer
      ERLサイエンス研究会
    • Place of Presentation
      筑波
    • Related Report
      2008 Final Research Report
  • [Presentation] 分裂期染色体内のヒトゲノムDNAの高次構造2008

    • Author(s)
      前島一博、伊藤和輝、Jacques Dubochet、渡辺愛、今本尚子、Mikhail Eltsov
    • Organizer
      第25回染色体ワークショップ
    • Place of Presentation
      湯河原
    • Related Report
      2008 Final Research Report
  • [Presentation] クロマチン工学への展望2007

    • Author(s)
      前島一博、今本尚子
    • Organizer
      日本分子生物学会・生化学会合同年会ワークショップ「クロマチン工学の開拓」
    • Place of Presentation
      横浜
    • Related Report
      2008 Final Research Report
  • [Presentation] 細胞核のダイナミクス-ライブセルモデリングの視点から2007

    • Author(s)
      前島一博
    • Organizer
      理研シンポジウム VCADシステム研究2007
    • Place of Presentation
      和光
    • Related Report
      2008 Final Research Report
  • [Presentation] コヒーレント照明による細胞内小器官のイメージング2007

    • Author(s)
      前島一博
    • Organizer
      第4回日本放射光学会若手ワークショップ-次世代放射光源を用いた生命科学未踏領域への挑戦-
    • Place of Presentation
      播磨
    • Related Report
      2008 Final Research Report
  • [Presentation] 染色体の高次構造2007

    • Author(s)
      前島一博
    • Organizer
      生理学研究所研究会「位相差断層電子顕から見た顕微鏡染色体構造とダイナミクス」
    • Place of Presentation
      岡崎
    • Related Report
      2008 Final Research Report
  • [Presentation] Mitotic chromosome structure : regular or random?2007

    • Author(s)
      Maeshima, K.
    • Organizer
      International Symposium Functional Organization of the Nucleus
    • Place of Presentation
      Awaji-shima
    • Related Report
      2008 Final Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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