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10:09
Isolation and Cultivation of Neural Progenitors Followed by Chromatin-Immunoprecipitation of Histone 3 Lysine 79 Dimethylation Mark
Published on: January 26, 2018
On your histone mark, SET, methylate!
1Newcastle Cancer Centre at the Northern Institute for Cancer Research; Newcastle University, Newcastle upon Tyne, England. olivier.binda@newcastle.ac.uk
Epigenetics
|April 30, 2013
Summary
Lysine methylation, a key protein modification, is regulated by other modifications. This cross-talk impacts both histone and non-histone proteins, influencing cellular functions.
Area of Science:
- Biochemistry
- Molecular Biology
- Epigenetics
Background:
- Lysine methylation is a crucial posttranslational modification impacting diverse cellular processes.
- This modification extends beyond epigenetic regulation, influencing non-histone proteins.
- Interactions between lysine methyltransferases and their substrates are modulated by surrounding posttranslational modifications.
Purpose of the Study:
- To discuss the cross-talk between different lysine methylation sites.
- To explore how posttranslational modifications regulate lysine methylation events.
- To examine the in cis effects of acetylation, phosphorylation, and other methylations on lysine methylation.
Main Methods:
- Review of existing literature on lysine methylation and its regulation.
- Analysis of specific examples of cross-talk in histone and non-histone proteins.
- Discussion of the impact of various posttranslational modifications on lysine methylation.
Main Results:
- Demonstration of regulatory cross-talk between lysine methylation sites on histones (e.g., H3K4me3 and H3K9me).
- Examples of similar cross-talk affecting non-histone proteins like p53 and DNMT1.
- Identification of 'in cis' effects of acetylation, phosphorylation, and methylation on lysine methylation.
Conclusions:
- Posttranslational modifications play a critical role in regulating lysine methylation.
- This regulatory network is essential for both epigenetic and non-epigenetic cellular functions.
- Understanding these cross-talk mechanisms provides insights into protein function and regulation.
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