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[Structure of chromatin and cell cycle. 3]

M S Santisteban1

  • 1University of Virginia, School of Medicine, Department of Microbiology, Charlottesville 22908, USA.

Pathologie-Biologie
|September 1, 1995
PubMed
Summary

Chromatin structure dynamically changes throughout the cell cycle, correlating with cell function. Research confirms a single condensation-decondensation cycle, with cell division cycle gene products regulating these chromatin changes.

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Area of Science:

  • Cell Biology
  • Molecular Biology
  • Genetics

Context:

  • Chromatin undergoes significant structural alterations during the cell cycle, impacting essential cellular functions like DNA replication and transcriptional regulation.
  • Studies from the 1970s to present, employing biochemical, biophysical, and in situ methods, have investigated these dynamic chromatin changes at the individual cell level.

Purpose:

  • To review and analyze the correlation between chromatin condensation states and cell cycle progression.
  • To examine the role of cell division cycle (cdc) gene products in controlling the cell cycle and regulating chromatin structure.

Summary:

  • The majority of research indicates a consistent, single cycle of chromatin condensation and decondensation throughout the cell cycle.
  • The first part of the chapter discusses existing studies on chromatin condensation cycles, while the second part focuses on the regulatory functions of cdc gene products.

Impact:

  • Provides a comprehensive overview of chromatin dynamics during the cell cycle, integrating historical and modern research findings.
  • Elucidates the molecular mechanisms underlying cell cycle control and chromatin organization, highlighting the importance of cdc genes.

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