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Related Concept Videos

The Replisome03:01

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Before a cell can divide, it must accurately replicate all of its chromosomes, including the DNA and its associated histone and non-histone proteins.  This process begins at numerous origins of replication during the S phase of the cell cycle in each of a cell’s chromosomes simultaneously. Certain nucleotides can act as origins of replication, but these sequences are not well defined - especially in complex, multi-cellular, eukaryotic species. The length of DNA that spans an origin...
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The replisome guides nucleosome assembly during DNA replication.

Wenshuo Zhang1, Jianxun Feng1, Qing Li1

  • 1State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871 China.

Cell & Bioscience
|March 20, 2020
PubMed
Summary

DNA replication-coupled (RC) nucleosome assembly ensures chromatin replication for genome stability and epigenetic inheritance. Replisome components play crucial roles in this essential process, impacting histone segregation.

Keywords:
Chromatin replicationHistone chaperoneNucleosome assemblyReplisome component

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Area of Science:

  • Molecular Biology
  • Genetics
  • Epigenetics

Background:

  • Nucleosome assembly is intrinsically linked to DNA replication.
  • DNA replication-coupled (RC) nucleosome assembly is vital for chromatin replication, genome stability, and epigenetic inheritance.

Purpose of the Study:

  • To review recent findings on the role of replisome components in RC nucleosome assembly.
  • To explore the interactions between replisome components, histones, and histone chaperones.

Main Methods:

  • Literature review of studies from yeast to mammalian cells.
  • Analysis of the eukaryotic replisome architecture.
  • Examination of interactions between replisome factors and histone proteins.

Main Results:

  • Replisome components actively contribute to RC nucleosome assembly.
  • Specific replisome factors influence histone segregation during replication.
  • These processes have significant implications for maintaining epigenetic information.

Conclusions:

  • Understanding the function of replisome components in RC nucleosome assembly is key to comprehending chromatin replication.
  • This process is critical for both genome stability and the faithful transmission of epigenetic traits.