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Related Experiment Videos

Replication timing and transcriptional control: beyond cause and effect.

David M Gilbert1

  • 1Department of Biochemistry and Molecular Biology, SUNY Upstate Medical University, 750 East Adams Street, Syracuse, NY 13210, USA. gilbertd@upstate.edu

Current Opinion in Cell Biology
|June 18, 2002
PubMed
Summary

Replication timing, crucial for cell division, is linked to chromatin structure. This relationship is bidirectional, influencing both DNA replication and chromatin inheritance across cell cycles.

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Autosomal Allelic Inactivation: Variable Replication and Dosage Sensitivity.

bioRxiv : the preprint server for biology·2025

Area of Science:

  • Cell Biology
  • Genetics
  • Epigenetics

Background:

  • Transcriptionally active euchromatin replicates early in S phase, while silent heterochromatin replicates late.
  • Replication timing changes during development and is linked to heritably repressed chromatin across eukaryotes.
  • The interplay between replication timing and chromatin structure is a long-standing question in molecular biology.

Purpose of the Study:

  • To explore the bidirectional relationship between replication timing and chromatin structure.
  • To investigate the role of replication timing beyond its connection to transcription.
  • To identify the molecular determinants regulating replication timing.

Main Methods:

  • Review of recent findings on chromatin structure and replication timing.

Related Experiment Videos

  • Analysis of conserved relationships in eukaryotes, yeasts, and mammals.
  • Examination of novel systems for studying replication timing regulation.

    • Main Results:

    • Evidence suggests replication timing is both a cause and consequence of chromatin structure.
    • Replication timing influences the inheritance of chromatin states.
    • Aberrations in replication timing correlate with defects in centromere function, chromosome cohesion, and genome instability.

    Conclusions:

    • Replication timing plays a critical role in maintaining genome stability and proper cell division.
    • The relationship between replication timing and chromatin structure is complex and reciprocal.
    • Further research using novel systems will elucidate the molecular mechanisms governing replication timing.