Related Experiment Video
Updated: May 11, 2026

12:11
Methodology for Accurate Detection of Mitochondrial DNA Methylation
Published on: May 20, 2018
The CXXC-TET bridge--mind the methylation gap!
Donncha S Dunican1, Sari Pennings, Richard R Meehan
1MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Crewe Road, Edinburgh, EH4 2XU, UK.
Cell Research
|May 29, 2013
Summary
CpG-binding proteins are vital for cell development. The CXXC domain protein, IDAX, regulates Ten-Eleven-Translocation 2 (TET2) protein function, impacting cell differentiation.
Area of Science:
- Molecular Biology
- Genetics
- Epigenetics
Background:
- CpG-rich DNA-binding proteins are crucial for cell differentiation and development.
- These reader proteins specifically bind to non-methylated CpG sequences.
Purpose of the Study:
- To investigate the role of the CXXC domain protein, IDAX, in regulating DNA methylation and gene expression.
- To elucidate the interaction between IDAX and the Ten-Eleven-Translocation 2 (TET2) protein.
Main Methods:
- Utilized chromatin immunoprecipitation sequencing (ChIP-seq) to identify IDAX binding sites.
- Performed gene expression analysis to assess the impact of IDAX on target genes.
- Investigated the physical interaction between IDAX and TET2 through co-immunoprecipitation assays.
Main Results:
- IDAX was identified as a critical CG-rich DNA-binding factor.
- IDAX plays a crucial role in the regulation of Ten-Eleven-Translocation 2 (TET2) protein function.
- The study provides insights into the molecular mechanisms underlying IDAX-mediated gene regulation.
Conclusions:
- IDAX is a key regulator in processes involving CpG-rich DNA binding.
- The interaction between IDAX and TET2 is essential for proper cellular function and development.
- This research highlights the significance of IDAX in the context of epigenetic regulation.
More Related Videos
Related Concept Videos
Mismatch Repair
Organisms are capable of detecting and fixing nucleotide mismatches that occur during DNA replication. This sophisticated process requires identifying the new strand and replacing the erroneous bases with correct nucleotides. Mismatch repair is coordinated by many proteins in both prokaryotes and eukaryotes.
The Mutator Protein Family Plays a Key Role in DNA Mismatch Repair
The human genome has more than 3 billion base pairs of DNA per cell. Prior to cell division, that vast amount of genetic...
The Mutator Protein Family Plays a Key Role in DNA Mismatch Repair
The human genome has more than 3 billion base pairs of DNA per cell. Prior to cell division, that vast amount of genetic...
Mismatch Repair
Overview
Phase II Reactions: Methylation Reactions
Methylation is a phase II biotransformation process involving the attachment of a methyl group to a substrate. Enzymes known as methyltransferases orchestrate this reaction.
The mechanism of methylation unfolds in two stages. The first stage sees a methyltransferase enzyme facilitating the transfer of a methyl group from S-adenosylmethionine (SAM) to the substrate, forming S-adenosylhomocysteine (SAH). The second stage involves further metabolism of SAH into homocysteine, which can be recycled...
The mechanism of methylation unfolds in two stages. The first stage sees a methyltransferase enzyme facilitating the transfer of a methyl group from S-adenosylmethionine (SAM) to the substrate, forming S-adenosylhomocysteine (SAH). The second stage involves further metabolism of SAH into homocysteine, which can be recycled...
Gene Conversion
Other than maintaining genome stability via DNA repair, homologous recombination plays an important role in diversifying the genome. In fact, the recombination of sequences forms the molecular basis of genomic evolution. Random and non-random permutations of genomic sequences create a library of new amalgamated sequences. These newly formed genomes can determine the fitness and survival of cells. In bacteria, homologous and non-homologous types of recombination lead to the evolution of new...
Epigenetic Regulation
Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...
X-chromosome...

