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Continuous Fluorescence-Based Endonuclease-Coupled DNA Methylation Assay to Screen for DNA Methyltransferase Inhibitors
Published on: August 5, 2022
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DNA methylation data from Japanese patients with Rubinstein-Taybi syndrome
Tomoko Kawai1, Taiga Aoki2, Kazuhiko Nakabayashi3
1Department of Maternal-Fetal Biology, National Center for Child Health and Development, Tokyo, Japan. kawai-tm@ncchd.go.jp.
Human Genome Variation
|November 27, 2025
Summary
Newly available DNA methylation data for Rubinstein-Taybi syndrome aids in diagnosing genetic variants. This resource supports understanding the function of variants of uncertain significance (VUS) in rare diseases.
Area of Science:
- Genomics
- Epigenetics
- Rare Diseases
Background:
- Episignatures, which are genome-wide DNA methylation patterns, are specific to syndromes or genes.
- Episignature analysis is crucial for diagnosing variants of uncertain significance (VUS).
- Accurate diagnosis using episignatures requires positive methylation datasets from confirmed patient cases.
Purpose of the Study:
- To provide novel, individual-level DNA methylation datasets for Rubinstein-Taybi syndrome.
- To facilitate the diagnosis of VUS by expanding available episignature data.
- To enhance the understanding of gene function in rare genetic disorders.
Main Methods:
- Generation of genome-wide DNA methylation profiles.
- Data collection at the individual patient level for Rubinstein-Taybi syndrome.
- Dataset curation for diagnostic episignature analysis.
Main Results:
- Publication of previously unavailable methylation datasets for Rubinstein-Taybi syndrome patients.
- Establishment of a valuable resource for episignature analysis.
- Increased potential for functional interpretation of VUS.
Conclusions:
- The released dataset is a significant contribution to the field of epigenetic diagnostics.
- This resource will improve diagnostic accuracy for patients with VUS.
- Further research can leverage this data to elucidate gene function and disease mechanisms.
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