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1996 Fiscal Year Final Research Report Summary

Eukaryotic Cell Cycle Control

Research Project

Project/Area Number 06404020
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field General medical chemistry
Research InstitutionThe University of Tokyo

Principal Investigator

OKAYAMA Hiroto  The University of Tokyo, Faculty of Medicine Professor, 医学部, 教授 (40111950)

Co-Investigator(Kenkyū-buntansha) MURAKAMI Hiroshi  The University of Tokyo, Faculty of Medicine Associate, 医学部, 助手 (80262020)
JINNO Shigeki  The University of Tokyo, Faculty of Medicine Associate, 医学部, 助手 (10251224)
NAGATA Akihisa  The University of Tokyo, Faculty of Medicine Lecture, 医学部, 講師 (50155933)
Project Period (FY) 1994 – 1996
Keywordscell cycle / fission yeast / ORC / G1 phase / S phase / cdc2 / cyclin
Research Abstract

The goal of this research is to understand the molecular mechanism controlling the cell cycle "start" and the cell differentiation "start". To this end, fission yeast has been studied as a model organism because this organism is closely related to higher eukaryotes. During the past 3 years, we have discovered 4 novel factors controlling the onset of differentiation and 5 new factors controlling the cell cycle "start". Among the 4 factors are a B-type cyclin that negatively controls the onset of differentiation and positively controls the start of the cell cycle ; a stress signal MAP kinase called Phh1 that positively controls the onset of differentiation ; a novel protein named Rcd1 that is essential for nitrogen-starvation-induced start of differentiation ; Nrd1, a RNA binding protein that negatively controls the onset of differentiation. They have mammalian homologues, raising the possibility that the differentiation control system found in fission yeast may be conserved up to mammals.
Among the 5 cell cycle "start" factors are Res2, a DNA binding subunit that forms a transcriptional factor complex with Cdc10 ; Rep1 and Rep2, two transcriptional activator subunits that act by forming a complex with Res2-Cdc10 ; the new cyclin Pas1 that associates with Cdc2 kinase and activates Res2/Cdc10/Rep2 ; Spt1 a novel factor that binds Cdc18 and critically controls the onset and progression of S phase. Spt1 might form a control cascade independent of the Cdc2/Pas1-Res/Cdc10/Rep-Cdc18 cascade.

  • Research Products

    (29 results)

All Other

All Publications (29 results)

  • [Publications] Okayama,H.et al.: "Cell cycle control in fission yeast and mammals : ldentification of new regulatory mechanisms." Adv.Cancer Res.69. 17-62 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kato,T.Jr.et al.: "Stress signal,mediated by a Hog1-like MAP kinase, controls sexual development in fission yeast." FEBS Let.378. 207-212 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yoshida,S.et al.: "Assembly of Hepatitis C Virus Antigens Expressed from a Recombinant Vaccinia Virus." Proc.Japan Acad.72. 73-78 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masuda,A.et al.: "Role of a signal transduction pathway which controls disassembly of microfilament bundles and suppression of high-molecular weight tropomyosin expression in oncogenic transformation of NRK cells." Oncogene. 12. 2081-2088 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kizaka-Kondoh,S.et al.: "Crkll signals from growth factor receptor to ras." Proc.Natl.Acad.Sci.USA. 93. 12177-12182 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Sturm,S.,and Okayama,H.: "Domains determing the functional distinction of the fission yeast cell cycle start molecules Res1 and Res2." Mol.Biol.Cell. 7. 1967-1976 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Murakami.H et al.: "A kinase from fission yeast responsible for blocking mitosis in S phase." Nature. 374. 817-819 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Terada,Y.et al.: "Requirement for tyrosine phosphorylation of cdk4 in G1-arrest induced by ultraviolet irradiation." Nature. 376. 358-362 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Okayama,H.et al.: "Cell cycle control in fission yeast and mammals : Identification of new regulatory mechanisms. (in press)" Adv.Cancer Res.(1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Jinno, S., Suto, K., Nagata, A., Igarashi, M., Kanaoka, Y., Nojima, H., and Okayama, H.: "Cdc25A is a novel phosphatase functioning early in the cell cycle." EMBO J.13. 1549-1556 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Murakami, S., Takahashi, Y., Yoshida, S., Fuke, I., Ohmae, K., Mori, C., Takagi, M., Takimizawa, A., and Okayama, H.: "Highly sensitive detection of viral RNA genomes in blood specimens by an optimized reverse transcription-polymerase chain reaction." J.Med. Virol.43. 175-181 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Manabe, S., Fuke, I., Tanishita, O., Kaji, C., Gomo, Y., Yoshida, S., Mori, C., Takamizawa, A., Yoshida, I., and Okayama, H.: "Production of nonstructural proteins of hepatitis C virus requires a putative viral protease encoded by NS3." Virol.196. 636-644 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sugiyama, A., Tanaka, K., Okazaki, K., Nojima, H., and Okayama, H.: "A zinc finger protein controls the onset of premeiotic DNA synthesis of fission yeast in a Mei2-independent cascade." EMBO J.13. 1881-1887 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Miyamoto, M., Tanaka, K., and Okayama, H.: "res2^+, a new member of cdc10^+/SW14 family, controls the "start" of mitotic and meiotic cycles in fission yeast." EMBO J.13. 1873-1880 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hara, E., Yamaguchi, T., Nojima, H., Ide, T., Campisi, J., Okayama, H., and Oda, K.: "Id-relatred genes encoding helix-loop-helix proteins are required for G1 progression and are repressed in senescent human fibroblasts." J.Biol. Chem.269. 1-7 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Obara-Ishihara, T., and Okayama, H.: "A B-type cyclin requlates conjugation via interaction with cell cycle "start" genes in fission yeast." EMBO J.13. 1863-1872 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yohda, H., Okada, H., Giga-Hama, Y., Okayama, H., and Kumagai, H.: "A copy number-controlled expression vector for the fission yeast Schizosaccharomyces pombe." Gene. 150. 275-28 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Murakami, H., and Okayama, H.: "A kinase from fission yeast responsible for blocking mitosis in Sphase." Nature. 374. 817-819 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Giga-Hama, Y., Tohda, H., Okada, H., Owada, M.K., Okayama, H., and Kumagai, H.: "High-level expression of human lipocortin I in the fission yeast Schizosaccharomyces pombe using a novel expression vector." Biotechnology. 12. 400-404 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shimizu, M., Ichikawa, E., Inoue, U., Nakamura, T., Nakajima, T., Nojima, H., Okayama, H., and Oda, K.: "The G1/S boundary-specific enhancer of the rat cdc2 promoter." Mol. Cell. Biol.15. 2882-2892 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Terada, Y., Tatsuka, M., Jlnno, S., and Okayama, H.: "Requirement for tyrosine phosphprylation of Cdk4 in G1 arrest induced by ultraviolet irradiation." Nature. 376. 358-362 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nakashima, N., Tanaka, K., Sturm, S., and Okayama, H.: "Fission Yeast Rep2 is a putative transcriptional activator subunit for the cell cycle 'start' function of Res2-Cdc10." The EMBO Journal. 14. 4794-4802 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Okayama, H., Nagata, A., Jinno, S., Murakami, H., Tanaka, K., and Nakashima, N.: "Cell cycle control in fission yeast and mammals identification of new regulatory mechanisms." Adv. Cancer Re.69. 17-62 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Roger, B., Lysiane, A,H., and Okayama, H.: "Liver fructose-1,6-bis-phosphatase cDNA : transcomplementation of fission yeast and characterization of two human transcripts." Differentiation.59. 51-60 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kato, Jr. , T., Okazaki, K., Murakami, H., Stettler, S., Fantes, A., P., and Okayama, H.: "Stress signal, mediated by a Hog1-like MAP kinase, controls sexual development in fission yeast." FEBS Let.378. 207-212 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yoshida, S., Manabe, S., Tanishita, O., Kaji, C., Gomi, Y., Mori, C., Takamizawa, A., and Okayama, H.: "Assembly of Hepatitis C Virus Antigens Expressed from a Recombinant Vaccinia Virus." Proc. Japan Acad.72. 73-78 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masuda, A., Takenaga, K., Kondoh, K., Fukami, H., Utsumi, K., and Okayama, H.: "Role of a signal transduction pathway which controls disassembly of microfilament bundles and suppression of highmolecular weight tropomyosin expression in oncogenic transformation of NRK cells." Oncogene. 12. 2081-2088 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kizaka-Kondoh, S., Matsuda, M., and Okayama, H.: "Crkll signals from epidermal growth factor receptor to Ras." Proc. Natl. Acad. Sci. USA. 93. 12177-12182 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sturm, Sabine and Okayama, H.: "Domains Determining the Functional Distinction of the Fission Yeast Cell Cycle "Start" Molecules Res1 and Res2." Molecular Biology of the Cell. 7. 1967-1976 (1996)

    • 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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