Related Experiment Video
Updated: Jan 18, 2026
05:35
Immunofluorescence Analysis of Endogenous and Exogenous Centromere-kinetochore Proteins
Published on: March 3, 2016
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Boundary issues: SWI/SNF shapes chromatin patterns in and around centromeres.
Karen A Lane1, Alison Harrod1, Jessica Downs1
1Division of Cell and Molecular Biology, Institute of Cancer Research, London, UK.
Open Biology
|January 15, 2026
Summary
The Polybromo and BRG1-associated factor (PBAF) complex is crucial for centromere stability. Disruption of PBAF causes centromere fragility, impacting chromosome segregation.
Area of Science:
- Molecular Biology
- Epigenetics
- Cell Biology
Background:
- The SWI/SNF family of chromatin remodellers, including BAF, PBAF, and ncBAF, are vital for gene expression.
- Emerging evidence highlights SWI/SNF complex involvement at centromeres.
Purpose of the Study:
- To review the roles of SWI/SNF complexes in centromere stability.
- To discuss how PBAF disruption leads to centromere fragility.
Main Methods:
- Literature review of SWI/SNF complexes at centromeres.
- Analysis of PBAF's role in chromatin boundary maintenance.
Main Results:
- SWI/SNF complexes, particularly PBAF, play a role at centromeres.
- PBAF disruption results in centromere fragility.
Conclusions:
- PBAF is essential for establishing and maintaining heterochromatin-euchromatin boundaries within centromeres.
- Preservation of these boundaries by PBAF ensures centromere integrity and faithful chromosome segregation.
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