Related Experiment Video
Updated: Sep 21, 2025

A Method for Measuring RNA N6-methyladenosine Modifications in Cells and Tissues
Published on: December 5, 2016
Detailed resume of RNA m6A demethylases
Dandan Shen1,2, Bo Wang1,2, Ya Gao1,2
1Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou University, Zhengzhou 450052, China.
Abstract:
N6-Methyladenosine (m6A) is the most abundant internal modification in eukaryotic mRNA, playing critical role in various bioprocesses. Like other epigenetic modifications, m6A modification can be catalyzed by the methyltransferase complex and erased dynamically to maintain cells homeostasis. Up to now, only two m6A demethylases have been reported, fat mass and obesity-associated protein (FTO) and alkylation protein AlkB homolog 5 (ALKBH5), involving in a wide range of mRNA biological progress, including mRNA shearing, export, metabolism and stability. Furthermore, they participate in many significantly biological signaling pathway, and contribute to the progress and development of cancer along with other diseases. In this review, we focus on the studies about structure, inhibitors development and biological function of FTO and ALKBH5.
Insights
N6-Methyladenosine (m6A) is a key mRNA modification. This review details the structure, inhibitors, and functions of the m6A demethylases FTO and ALKBH5 in biological processes and diseases.
Area of Science:
- Epigenetics
- Molecular Biology
- Biochemistry
Background:
- N6-Methyladenosine (m6A) is the most prevalent internal modification in eukaryotic messenger RNA (mRNA).
- m6A modification plays a crucial role in diverse cellular processes and homeostasis.
- Fat mass and obesity-associated protein (FTO) and alkylation protein AlkB homolog 5 (ALKBH5) are the two known m6A demethylases.
Purpose of the Study:
- To review the current understanding of the structure, inhibitor development, and biological functions of FTO and ALKBH5.
- To highlight the involvement of FTO and ALKBH5 in mRNA metabolism and biological signaling pathways.
- To discuss the role of these demethylases in the pathogenesis of cancer and other diseases.
Main Methods:
- Literature review of studies on FTO and ALKBH5.
- Analysis of research on m6A modification, demethylases, and their biological roles.
- Synthesis of information regarding structural, functional, and therapeutic aspects.
Main Results:
- FTO and ALKBH5 dynamically regulate m6A levels, impacting mRNA processing, export, metabolism, and stability.
- These demethylases are implicated in various signaling pathways.
- Dysregulation of FTO and ALKBH5 is associated with cancer and other diseases.
Conclusions:
- FTO and ALKBH5 are critical regulators of mRNA m6A modification with significant implications in cellular function and disease.
- Further research into FTO and ALKBH5 structure and inhibitors holds therapeutic potential.
- Understanding the biological functions of these demethylases is essential for disease intervention.
Related Concept Videos
RNA Stability
RNA Editing
Eukaryotic RNA Polymerases
All three eukaryotic RNAPs require specific transcription factors, of which the...

