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Updated: Oct 22, 2025
06:07
Continuous Fluorescence-Based Endonuclease-Coupled DNA Methylation Assay to Screen for DNA Methyltransferase Inhibitors
Published on: August 5, 2022
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Structure, Activity and Function of the SETDB1 Protein Methyltransferase.
Mariam Markouli1, Dimitrios Strepkos1, Christina Piperi1
1Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece.
Life (Basel, Switzerland)
|August 27, 2021
Summary
SET Domain Bifurcated Histone Lysine Methyltransferase 1 (SETDB1) regulates gene expression and is vital for normal development. Aberrant SETDB1 activity contributes to cancer and various diseases, presenting therapeutic targets.
Area of Science:
- Biochemistry
- Molecular Biology
- Genetics
Background:
- SET Domain Bifurcated Histone Lysine Methyltransferase 1 (SETDB1) is a key histone methyltransferase.
- It methylates Histone 3 lysine 9 (H3K9), impacting gene expression and chromatin structure.
- SETDB1 plays crucial roles in physiological processes including nervous system development and immune function.
Purpose of the Study:
- To provide an updated review of SETDB1.
- To discuss its structural and biochemical characteristics.
- To explore its role in normal physiology and disease pathogenesis, including potential therapeutic strategies.
Main Methods:
- Literature review and synthesis of existing research on SETDB1.
- Analysis of structural and biochemical data.
- Examination of SETDB1's involvement in various cellular processes and disease models.
Main Results:
- SETDB1 comprises three isoforms with distinct domain compositions.
- It is widely expressed and involved in cell cycle regulation, X chromosome inactivation, and retroelement expression.
- SETDB1 deregulation is implicated in numerous cancers (gliomas, melanomas, lung, breast, etc.) and diseases (schizophrenia, Huntington's disease, IBD).
Conclusions:
- SETDB1's unique features enable its regulatory functions.
- Its aberrant activity is a significant factor in oncogenesis and various non-cancerous diseases.
- Understanding SETDB1's role offers potential therapeutic avenues for related diseases.
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