GC- and AT-rich chromatin domains differ in conformation and histone modification status and are differentially modulated by Rpd3p
2007
Differences in Chromatin Structure and Histone Modifications in Yeast
Sample size: 5568
publication
Evidence: high
Author Information
Author(s): Job Dekker
Primary Institution: University of Massachusetts Medical School
Hypothesis
GC-rich and AT-rich chromatin domains differ in conformation and histone modification status.
Conclusion
GC-rich and AT-rich chromatin domains display distinct chromatin conformations and are marked by distinct patterns of histone modifications.
Supporting Evidence
- GC-rich isochores have a more extended chromatin conformation than AT-rich isochores.
- GC-rich genes are more highly expressed than AT-rich genes.
- Histone modifications differ significantly between GC-rich and AT-rich chromatin.
Takeaway
This study shows that different parts of yeast DNA behave differently based on their composition, affecting how genes are expressed.
Methodology
The study used 3C analysis to compare chromatin conformation and histone modification status between GC-rich and AT-rich isochores.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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