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Emerging Roles of RNA Methylation in Development
Meng-Ke Wang1, Chun-Chun Gao1, Yun-Gui Yang1,2,3
1CAS Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, College of Future Technology, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, P. R. China.
Accounts of Chemical Research
|November 15, 2023
Summary
RNA modifications like N6-methyladenine (m6A) are crucial for development and disease. Advances in sequencing technologies enable deeper exploration of their roles in trace samples, offering potential as biomarkers and therapeutic targets.
Area of Science:
- Molecular Biology
- Epigenetics
- Developmental Biology
Background:
- Over 170 RNA modifications constitute the epitranscriptome, influencing RNA metabolism and physiological processes.
- Key modifications include N6-methyladenine (m6A), 5-methylcytosine (m5C), N1-methyladenine (m1A), and N7-methylguanosine (m7G).
- RNA modifications play a critical, yet increasingly recognized, role in developmental processes.
Purpose of the Study:
- To review the roles of RNA modifications in various developmental processes.
- To describe the characteristics and distribution of major RNA modifications and their associated enzymes.
- To highlight the impact of technological advancements in sequencing for studying RNA modifications in trace samples.
Main Methods:
- Review of existing literature on RNA modifications and their functions in development.
- Description of the distribution patterns of m6A, m5C, m1A, and m7G modifications in eukaryotic RNAs.
- Discussion of the catalytic enzymes (methyltransferases and demethylases) involved in RNA modification dynamics.
- Emphasis on the development of low-input, high-resolution sequencing technologies.
Main Results:
- m6A is the most abundant modification, regulating mRNA metabolism and involved in tumorigenesis and embryonic development.
- m5C is enriched in coding sequences and participates in embryonic development and stem cell differentiation.
- m1A and m7G are involved in translation regulation, neurodevelopment, and neurodegenerative diseases.
Conclusions:
- RNA modifications are dynamically regulated and play significant roles across diverse developmental processes.
- Technological advancements are crucial for uncovering the functions of RNA modifications in biological events.
- RNA modifications hold promise as candidate biomarkers and potential therapeutic targets for various diseases.
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