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1995 Fiscal Year Final Research Report Summary

Introduction of myosin into cells and analysis of its dynamics.

Research Project

Project/Area Number 06680690
Research Category

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

Allocation TypeSingle-year Grants
Research Field Cell biology
Research InstitutionYamaguchi University

Principal Investigator

YUMURA Shigehiko  Yamaguchi Universtiy, Associate Prof., 理学部, 助教授 (70183986)

Project Period (FY) 1994 – 1995
Keywordselectroporation / myosin / Dictyostelium / motility
Research Abstract

1.Establishment of method for introduction of macromolecules into Dictyostelium.
Fluorescently labeled-bovine serum albumin was introduced into Dictyostelium cells by electroporation. Conditions for introduction was examined on charged voltage, current, chamber, and components of solution.
2.Introduction of fluorescently-labeled myosin into Dictyostelium cells.
Isolated Dictyostelium myosin was labeled with 5-IAF.The labeling did not decrease the ability of filament formation and ATPase activities. The labeled myosin was introduced into living Dictyostelium cells by electroporation.
3.Behavior of introduced myosin in living cells.
The introduced myosin was concentrated at the tail region in an actively moving cell and localized at the furrow region in a dividing cell.
4.Dynamic behavior of filaments of myosin in living cells.
The labeled myosin was observed in a form of filaments in living cells. The filaments were arranged to form a contractile ring at furrow region.

  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] Yumura,S.: "Rapid translocation of myosin II in vegetative Dictyostelium amoeba during folate-stimulation." Cell Struct.Funct.19. 143-151 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yumura,S.: "Introduction of macromolecules into living Dictyostelium cells by electroporation." Cell Struct.Funct.20. 185-190 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Okazaki,K.: "Differential association of three actin-bundling proteins with microfilaments in Dictyostelium amoebae." Europ.J.Cell Biol.66. 75-81 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yumura,S.: "Rapid redistribution of myosin II in living Dictyostelium amoebae,as revealed by fluorescent probes introduced by electroporation." Protoplasma. (印刷中).

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 祐村恵彦: "細胞を動かすしくみを探る" Biohistory. 3. 10- (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yumura, S.: "Reorganization of actin and myosin II in Dictyostelium amoeba during stimulation by cAMP." Cell Struct.Funct.18. 379-388 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yumura, S.: "Rapid translocation of myosin II in vegetative Dictyostelium amoeba during folate-stimulation." Cell Struct.Funct.19. 143-151 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yumura, S., Matsuzaki, R., Kitanishi-Yumura, T.: "Introduction of macromolecules into living Dictyostelium cells by electroporation." Cell Struct.Funct.20. 185-190 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Okazaki, K.and Yumura, S.: "Differential association of three actin-bundling proteins with microfilaments in Dictyostelium amoebae." Europ.J.Cell Biol.66. 75-81 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yumura, S.: "Rapid redistribution of myosin II in living Dictyostelium amoebae, as revealed by fluorescent probes introduced by electroporation." Protoplasma. (in press).

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

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Published: 1997-03-04  

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