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Updated: Jan 15, 2026
Sequence-specific Labeling of Nucleic Acids and Proteins with Methyltransferases and Cofactor Analogues
Published on: November 22, 2014
Sequence-independent 6mA methyltransferases for epigenetic profiling and editing
Jiachen Zhang1, Yumiao Zhang1, Jinghan Diao1
1MOE Key Laboratory of Evolution & Marine Biodiversity and Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center, Qingdao 266237, China.
Exogenous DNA N6-methyladenine (6mA) deposition combined with long-read sequencing offers novel chromatin profiling methods. This approach aids in mapping gene regulation, protein-DNA interactions, and epigenetic editing for enhanced biological insights.
Area of Science:
- Epigenetics and Genomics
- Molecular Biology
- Biotechnology
Background:
- Gene activity is regulated by the chromatin environment.
- Understanding chromatin is key to deciphering gene regulatory networks.
- DNA N6-methyladenine (6mA) is a newly recognized epigenetic mark.
Purpose of the Study:
- To review advances in using exogenous 6mA deposition and long-read sequencing.
- To highlight applications in chromatin profiling, protein-DNA interactions, and epigenetic editing.
- To discuss challenges and future prospects in the field.
Main Methods:
- Utilizing sequence-independent 6mA methyltransferases (MTases) to introduce exogenous 6mA.
- Employing long-read sequencing technologies for chromatin analysis.
- Developing workflows for chromatin landscape profiling, protein-DNA interaction mapping, and targeted epigenetic editing.
Main Results:
- Exogenous 6mA deposition enables innovative chromatin profiling.
- Long-read sequencing facilitates detailed analysis of chromatin architecture.
- The combined approach shows promise for mapping gene regulation and protein-DNA interactions.
Conclusions:
- Exogenous 6mA is a powerful tool for decoding chromatin.
- This technology offers new avenues for understanding gene regulation.
- Further optimization holds potential for advancing epigenetic research.
