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Mammalian histone acetyltransferases and their complexes
1Laboratoire Oncogenese, Differenciation et Transduction du Signal, CNRS UPR 9079, Institut André Lwoff, Villejuif, France. v.ogryzko@vjf.cnrs.fr
Cellular and Molecular Life Sciences : CMLS
|July 5, 2001
Summary
Histone acetylation regulates chromatin function and epigenetic inheritance. Mammalian enzymes involved in this process may play a role in maintaining chromatin memory through cell divisions, impacting development and disease.
Area of Science:
- Molecular Genetics
- Epigenetics
- Developmental Biology
Background:
- Chromatin structure presents accessibility challenges for gene expression.
- Histone acetylation is a key posttranslational modification regulating chromatin function.
- Chromatin memory, the maintenance of chromatin states through cell divisions, is crucial for epigenetic inheritance.
Purpose of the Study:
- To summarize mammalian enzymes responsible for histone acetylation.
- To explore the role of histone acetyltransferases in epigenetic inheritance and chromatin memory.
- To discuss models of histone acetyltransferase function in epigenetic inheritance.
Main Methods:
- Review of current literature on histone acetylation and chromatin function.
- Analysis of the composition of multiprotein acetyltransferase complexes.
- Discussion of theoretical models related to histone acetyltransferase function.
Main Results:
- Identified mammalian enzymes that catalyze histone acetylation.
- Highlighted the link between histone acetylation, chromatin memory, and epigenetic inheritance.
- Suggested that multiprotein acetyltransferase complexes are involved in epigenetic inheritance mechanisms.
Conclusions:
- Histone acetylation is critical for regulating chromatin accessibility and gene expression.
- Histone acetyltransferases are implicated in epigenetic inheritance and chromatin memory.
- Understanding these mechanisms is vital for developmental biology and disease research, including cancer.