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Related Experiment Videos

Microtubule dynamics in Xenopus egg extracts.

M Shirasu1, A Yonetani, C E Walczak

  • 1Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA.

Microscopy Research and Technique
|April 22, 1999
PubMed
Summary

Microtubule organization dramatically changes during the cell cycle, requiring dynamic alterations. Research in Xenopus laevis egg extracts identifies proteins regulating these cell cycle-dependent microtubule dynamics.

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Area of Science:

  • Cell Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Microtubule organization and function undergo significant alterations throughout the cell cycle.
  • Mitosis involves the breakdown and reassembly of microtubule arrays into a bipolar spindle.
  • These dynamic changes necessitate modifications in individual microtubule behavior.

Purpose of the Study:

  • To identify proteins that influence microtubule behavior.
  • To understand the cell cycle-dependent regulation of microtubule-affecting proteins.
  • To elucidate the role of microtubule dynamics in cellular processes through in vitro studies.

Main Methods:

  • Utilizing Xenopus laevis egg extracts as a model system.
  • Investigating protein factors affecting microtubule dynamics.

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  • Analyzing cell cycle-dependent regulation of protein activities.

    • Main Results:

    • Identification of several proteins that modulate microtubule behavior.
    • Advancements in understanding the regulation of these proteins during the cell cycle.
    • Establishment of an in vitro system to study microtubule dynamics.

    Conclusions:

    • Microtubule dynamics are tightly controlled during the cell cycle.
    • Xenopus laevis egg extracts provide a valuable system for studying these processes.
    • Further research may illuminate the broader roles of microtubule dynamics in cellular functions.