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Updated: Jul 11, 2025
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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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One-Base-Gap Circular Probe-Mediated Dual Amplification for Isothermal Detection of N6-Methyladenosine Modifications.
Xiaochen Ma1, Yuqing Xia1, Shizheng Wang1
1Department of Chemistry, Faculty of Environment and Life Science, Beijing University of Technology, Beijing 100124, China.
Analytical Chemistry
|November 17, 2023
Summary
Researchers developed a new method to precisely detect N⁶-Methyladenosine (m⁶A) RNA modifications. This ultrasensitive assay offers single-base resolution for accurate m⁶A quantification in cells, aiding disease diagnosis.
Area of Science:
- Molecular Biology
- Epigenetics
- Biochemistry
Background:
- N⁶-Methyladenosine (m⁶A) is a key RNA modification regulating mRNA metabolism in mammals.
- Existing methods lack precision in quantifying m⁶A at specific sites.
Purpose of the Study:
- To develop a robust method for ultrasensitive, site-specific quantification of m⁶A RNA.
- To enable single-base resolution detection of m⁶A modifications.
Main Methods:
- Screening of a Bst 2.0 warm start DNA polymerase for m⁶A discrimination.
- Development of an isothermal and ultrasensitive m⁶A RNA detection assay.
- Application of the assay to single-cell analysis.
Main Results:
- The assay achieves a detection limit of approximately 0.02 amol.
- Quantitative accuracy was validated in real cell samples.
- Single-cell analysis revealed significant differences in MALAT1 m⁶A levels between glioblastoma and oligodendrocyte cells.
Conclusions:
- The developed method provides a highly sensitive tool for site-specific m⁶A detection and quantification.
- This technology is expected to advance precise disease diagnosis and the study of epigenetic transcriptional regulation.
