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A Method for Measuring RNA N6-methyladenosine Modifications in Cells and Tissues
Published on: December 5, 2016
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m1A and m6A modifications function cooperatively to facilitate rapid mRNA degradation
Sung Ho Boo1, Hongseok Ha1, Yoon Ki Kim2
1Division of Life Sciences, Korea University, Seoul 02841, Republic of Korea.
Cell Reports
|September 7, 2022
Summary
N1-methyladenosine (m1A) RNA modification accelerates the degradation of N6-methyladenosine (m6A) modified mRNAs. HRSP12 protein binding to m1A enhances m6A reader YTHDF2 interaction, promoting mRNA decay.
Area of Science:
- Molecular Biology
- RNA Biology
- Epigenetics
Background:
- N6-Methyladenosine (m6A) is the most prevalent internal mRNA modification, regulating gene expression.
- YTHDF2 protein binds m6A on mRNAs, leading to rapid mRNA degradation via recruited RNA-degrading enzymes.
Purpose of the Study:
- To investigate the role of N1-methyladenosine (m1A) in RNA modification pathways.
- To elucidate the mechanism by which m1A influences m6A-mediated RNA degradation.
Main Methods:
- Identification of RNA-binding proteins interacting with m1A.
- Analysis of protein-RNA interactions using transcriptome-wide approaches.
- Assessment of mRNA and circular RNA degradation dynamics.
Main Results:
- N1-methyladenosine (m1A) accelerates m6A-mediated rapid mRNA degradation.
- HRSP12 protein was identified as an m1A reader, promoting YTHDF2 binding to m6A.
- HRSP12-dependent downregulation of mRNAs and circular RNAs containing both m1A and m6A was observed.
Conclusions:
- m1A acts as a crucial regulator of m6A RNA degradation.
- Crosstalk between different RNA modifications (m1A and m6A) influences gene expression.
- HRSP12 mediates the interplay between m1A and m6A modifications to control RNA stability.
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