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Related Experiment Video

Updated: Jun 22, 2026

Studying Proteolysis of Cyclin B at the Single Cell Level in Whole Cell Populations
10:54

Studying Proteolysis of Cyclin B at the Single Cell Level in Whole Cell Populations

Published on: September 17, 2012

Measuring proteolysis in mitosis.

Catherine Lindon1, Barbara Di Fiore

  • 1Department of Genetics, University of Cambridge, Cambridge, UK.

Methods in Molecular Biology (Clifton, N.J.)
|May 29, 2009
PubMed
Summary
This summary is machine-generated.

Targeted destruction of cell cycle regulators is crucial. A new quantitative assay precisely measures the timing of regulator destruction in mitotic cells using GFP tags and microscopy.

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Related Experiment Videos

Last Updated: Jun 22, 2026

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Area of Science:

  • Cell Biology
  • Molecular Biology
  • Biochemistry

Background:

  • The cell cycle is a fundamental biological process.
  • Progression through the cell cycle is regulated by specific proteins.
  • The timely destruction of these regulatory proteins is essential for proper cell division.

Purpose of the Study:

  • To develop a quantitative assay for measuring the destruction of cell cycle regulators.
  • To determine the precise timing of regulator destruction during mitosis.
  • To investigate the role of targeted protein destruction in cell cycle progression.

Main Methods:

  • Utilizing a quantitative assay.
  • Employing GFP-tagged substrates to track protein levels.
  • Employing time-lapse fluorescence microscopy.
  • Analyzing single mitotic cells.

Main Results:

  • The assay successfully quantifies the destruction of different regulators.
  • The timing of destruction for various substrates during mitosis was pinpointed.
  • This provides a detailed temporal map of protein degradation events.

Conclusions:

  • The developed assay is a valuable tool for studying cell cycle regulation.
  • Understanding the timing of regulator destruction offers insights into mitotic control.
  • This method can be applied to investigate other dynamic cellular processes.