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1993 Fiscal Year Final Research Report Summary

Regulatory Mechanism of M-phase by MPF,M-phase Promoting Factor

Research Project

Project/Area Number 03405004
Research Category

Grant-in-Aid for General Scientific Research (A)

Allocation TypeSingle-year Grants
Research Field 広領域
Research InstitutionTokyo Institute of Technology

Principal Investigator

KISHIMOTO Takeo  Tokyo Institute of Technology, Faculty of Bioscience and Biotechnology, Professor, 生命理工学部, 教授 (00124222)

Project Period (FY) 1991 – 1993
KeywordsM-phase / MPF / cdc2 kinase / cdc2 / cyclin B complex / sucl-affinity chromatography / nuclear transport / chromosome condensation / mitotic apparatus
Research Abstract

MPF (M-phase promoting factor), which is composed of the p34^<cdc2>/cyclin B complex, cdc2 kinase, governs M-phase in all eukaryotic cells. In this project, we studied how M-phase is executed by cdc2 kinase, and obtained following results.
1.We developed a new method to purify cdc2 kinase at high performance by modifying p13^<sucl>-affinity chromatography. This enabled us to analyze the function of cdc2 kinase in inducing various M-phase events.
2.At G2/M-phase border, the inactive form of p34^<cdc2>/cyclin B complex localizes in the cytoplasm. The complex is transformed to active form in the cytoplasm at the transition to M-phase. Thereafter, a part of the complex moves into nucleus, while other associates with mitotic apparatus. These specific localizations of the complex might support its specific function to execute M-phase within a cell.
3.In contrast to the previous belief that histone H1 phosphorylation by cdc2 kinase plays a key role in chromosome condensation, condensation occurs normally even in the chromatins lacking histone H1. This suggests the presence of an unknown major target of cdc2 kinase for chromosome condensation other than histone H1.
4.The p34^<cdc2/>cyclin B complex associates with a microtubule via the binding between cyclin B component and the prolin-rich region of MAP4. In such a complex, cdc2 kinase phosphorylates MAP4 to decrease its microtubule-stabilizing ability, resulting in increased dynamic instability of an individual microtubule. This effect of cdc2 kinase appears to contribute to form metaphase spindle.

  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] Hisanaga,S.,et al.: "Phosphorylation of neurofilament H subunit at the tail domain by CDC2..." J.Biol.Chem.266. 21798-21803 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Ookata,K.,et al.: "Relocation and distinct subcellular localization of p34^<cdc2> -cyclin B...." EMBO J.11. 1763-1772 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Ookata,K.,et al.: "Association of p34 ^<cdc2>/cyclin B complex with microtubules in starfish oocytes." J.Cell Sci.105. 873-881 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Ohsumi,K.,et al.: "Chromosome condensation in Xenopus mitotic extracts without histone Hl." Science. 262. 2033-2035 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kishimoto,T.: "Cell reproduction ; induction of M-phase events by cyclin-dependent cdc2 kinase." Int.J.Dev.Biol.38. 185-191 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Ookata,K.,et al.: "Cyclin B interaction with microtubule-associated protein 4 (MAP4) targets...." J.Cell Biol.128. 849-862 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 岸本健雄(分担): "新生化学実験講座 vol.14,「発生・分化・老化」(今堀和友、堀田凱樹、近藤寿人、永井克孝編)" 東京化学同人, 541 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 岸本健雄(分担): "最新・細胞周期ライブラリー(田矢洋一、野島博、花岡文雄編)" 羊土社(印刷中), (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hisanaga, S., Kusubata, M.Okumura, E., and Kishimoto, T.: "Phosphorylation of neurofilament H subunit at the tail domain by CDC2 kinase dissociates the association to microtubules." J.Biol.Chem. 266. 21798-21803 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ookata, K., Hisanaga, S., Okano, T., Tachibana, K., and Kishimoto, T.: "Relocation and distinct subcellular localization of p34^<cdc2>-cyclin B complex at meiosis reinitiation in starfish oocytes." EMBO J.11. 1763-1772 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kusubata, M.Tokui, T., Matsuoka, Y., Okumura, E., Tachibana, K., Hisanaga, S., Kishimoto, T., Yasuda, H., Kamijo, M., Ohba, T., Tsujimura, K., Yatani, R., and Inagaki, M.: "P13^<sucl> suppresses the catalytic function of p34^<cdc2> kinase for intermediate filament proteins, in vitro." J.Biol.Chem.267. 20937-20942 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hisanaga, s., Ishiguro, K., Uchida, T., Okumura, E., Okano, T., and Kishimoto, T.: "Tau protein kinase II has a similar characteristic to cdc2 kinase for phosphorylating neurofilament proteins." J.Biol.Chem.268. 15056-15060 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ookata, K., Hisanaga, S., Okumura, E., and Kishimoto, T.: "Association of p34^<cdc2>/cyclin B complex with microtubules in starfish oocytes." J.Cell Sci.105. 873-881 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ohsumi, K., Katagiri, Ch., and Kishimoto, T.: "Chromosome condensation in Xenopus mitotic extracts without histone H1." Science. 262. 2033-2035 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kishimoto, T.: "Cell reproductio : induction of M-phase events by cyclin-dependent cdc2 kinase." Int.J.Dev.Biol.38. 185-191 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ohsumi, K., Sawada, W., and Kishimoto, T.: "Meiosisspecific Cell cycle regulation in maturing Xenopus oocyte." J.Cell Sci.107. 3005-3013 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ookata, K., Hisanaga, S., Bulinski, J.C., Murofushi, H., Aizawa, H., Itoh, T.J., Hotani, H., Okumura, E., Tachibana, K., and Kishimoto, T.: "Cyclin B interaction with microtubule-associated protein 4 (MAP4) targets p34^<cdc2> kinase to microtubules and is a potential regulator of M-phase microtubule dynamics." J.Cell Biol.128. 849-862 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hisanaga, S., Uchiyama, M., Hosoi, T., Yamada, K., Honma, N., Ishiguro, K., Uchida, T., Dahl, D., Ohsumi, K., and Kishimoto, T.: "Procine brain neurofilament-H tail domain kinase : its identification as CDK5/p26 complex, and comparison with CDC2/cyclin B kinase." Cell Motil. Cytoskel.(in press).

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-09  

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