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Application of MassSQUIRM for Quantitative Measurements of Lysine Demethylase Activity
Published on: March 11, 2012
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An acidic patch in the unstructured N-terminus modulates LSD1 activity
Franziska Dukatz1, Hermann Timofeev1, Philipp Schnee1
1Department of Molecular Biochemistry, Institute of Biochemistry, University of Stuttgart, Stuttgart, Germany.
Protein Science : a Publication of the Protein Society
|November 13, 2025
Summary
Researchers identified a key acidic region in the N-terminal domain of Lysine-specific demethylase 1 (LSD1), revealing its critical role in regulating epigenetic modulation and gene expression.
Area of Science:
- Biochemistry
- Epigenetics
- Molecular Biology
Background:
- Lysine-specific demethylase 1 (LSD1) is vital for gene regulation and chromatin organization.
- Its catalytic core is understood, but the N-terminal region's function is unclear.
Purpose of the Study:
- To investigate the functional role of the intrinsically disordered N-terminal region of LSD1.
- To identify specific regulatory elements within this region that control LSD1 activity.
Main Methods:
- Bioinformatic analysis to identify conserved regions in the N-terminal domain.
- Biochemical assays to assess the impact of mutations on LSD1 enzymatic activity.
- Co-immunoprecipitation to study cofactor interactions.
Main Results:
- A conserved acidic patch was identified in the intrinsically disordered N-terminal region of LSD1.
- This acidic patch was found to be a key regulator of LSD1's enzymatic efficiency.
- The region influences interactions with important regulatory cofactors.
Conclusions:
- The N-terminal acidic patch is crucial for the mechanistic control of LSD1 function.
- Understanding this region provides new insights into epigenetic modulation by LSD1.
- This finding highlights the importance of intrinsically disordered regions in enzyme regulation.
