Cell Cycle Regulation of Histone H3K56 Acetylation in Yeast
Author Information
Author(s): Tommy Kaplan, Chih Long Liu, Judith A. Erkmann, John Holik, Michael Grunstein, Paul D. Kaufman, Nir Friedman, Oliver J. Rando
Primary Institution: The Hebrew University, Jerusalem, Israel
Hypothesis
How does H3K56 acetylation influence histone incorporation during the cell cycle?
Conclusion
H3K56 acetylation marks nucleosomes incorporated during both replication-coupled and replication-independent processes, and enhances histone turnover.
Supporting Evidence
- H3K56ac is found at all known sites of nucleosome incorporation.
- Replication-independent histone turnover is correlated with H3K56ac levels.
- H3K56ac enhances histone replacement rates at specific genomic loci.
Takeaway
This study shows that a special mark on histones helps them get added to DNA during the cell cycle, making it easier for new histones to replace old ones.
Methodology
The study used single-nucleosome resolution mapping to analyze H3K56 acetylation levels in yeast during different cell cycle phases.
Limitations
The study primarily focuses on yeast, which may limit the generalizability of the findings to other organisms.
Digital Object Identifier (DOI)
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