Related Experiment Video
Updated: Apr 19, 2026
07:55
Visualization of DNA Repair Proteins Interaction by Immunofluorescence
Published on: June 26, 2020
11.4K
MBD2 and MBD3: elusive functions and mechanisms
Roberta Menafra1, Hendrik G Stunnenberg1
1Department of Molecular Biology, Radboud University Nijmegen, Netherlands.
Frontiers in Genetics
|December 25, 2014
Summary
Methyl-CpG binding domain proteins (MBDs) are key epigenetic readers. This review compares MBD2 and MBD3, revealing distinct genome-wide binding and gene regulation roles despite similar complexes.
Area of Science:
- Epigenetics
- Molecular Biology
- Genomics
Background:
- Deoxyribonucleic acid (DNA) methylation is a crucial epigenetic mark.
- Methyl-CpG binding domain (MBD) proteins are a family of epigenetic readers that interpret DNA methylation.
- MBD proteins are implicated in gene regulation, chromatin structure, and cellular processes like pluripotency and differentiation.
Purpose of the Study:
- To provide a comprehensive comparison of the genome-wide binding features of MBD2 and MBD3.
- To elucidate the distinct biological roles of MBD2 and MBD3 in gene regulation.
- To highlight the emerging understanding of MBD protein functions.
Main Methods:
- Genome-wide analysis of MBD2 and MBD3 binding sites.
- Epigenomic profiling to determine DNA methylation patterns at binding sites.
- Comparative analysis of binding data and associated gene expression profiles.
Main Results:
- MBD2 and MBD3 bind to distinct genomic locations.
- Despite forming similar protein complexes, MBD2 and MBD3 exhibit differential roles in gene regulation.
- The study reveals a nuanced functional divergence between these closely related MBD proteins.
Conclusions:
- MBD2 and MBD3, while part of similar complexes, possess unique genome-wide binding profiles and regulatory functions.
- Understanding the distinct roles of MBD2 and MBD3 is essential for comprehending epigenetic regulation.
- This comparative analysis deepens insights into the functional diversity within the MBD protein family.
Related Concept Videos
02:23Master Transcription Regulators
8.1K
Master transcription regulators are regulatory proteins that are predominantly responsible for regulating the expression of multiple genes. Often these genes work in concert to drive a complex process. Activation of a master transcription regulator can lead to a cascade of transcriptional activation necessary for that outcome. These regulators can directly bind to the regulatory sequences of the various genes involved, or they can indirectly regulate transcription by binding to regulatory...
8.1K
02:23Abnormal Proliferation
5.5K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
5.5K
02:15M-Cdk Drives Transition Into Mitosis
6.8K
Checkpoints throughout the cell cycle serve as safeguards and gatekeepers, allowing the cell cycle to progress in favorable conditions and slow or halt it in problematic ones. This regulation is known as the cell cycle control system.
Cyclin-dependent kinases, or Cdks, work in concert with cyclins to control cell cycle transitions. M-Cdk, a complex of Cdk1 bound to M cyclin, is a well-known example of this coordinated control that drives the transition from the G2 to the M phase.
M cyclin...
Cyclin-dependent kinases, or Cdks, work in concert with cyclins to control cell cycle transitions. M-Cdk, a complex of Cdk1 bound to M cyclin, is a well-known example of this coordinated control that drives the transition from the G2 to the M phase.
M cyclin...
6.8K
01:57Protein Complexes with Interchangeable Parts
3.1K
Groups of proteins may form a complex where each protein in this complex has a different role in the overall execution of the complex’s function. Often some of the proteins in the complex can be replaced by a closely related variant to give a complex that contains many of the same components yet is functionally distinct.
The SCF ubiquitin ligase is a protein complex of five individual proteins. This complex attaches ubiquitin to other target proteins to mark them for degradation. In order...
The SCF ubiquitin ligase is a protein complex of five individual proteins. This complex attaches ubiquitin to other target proteins to mark them for degradation. In order...
3.1K
01:38Intralumenal Vesicles and Multivesicular Bodies
5.3K
Intraluminal vesicles (ILVs) are small vesicles 50-80 nm in diameter formed during the maturation of early endosomes. A specialized endosome containing numerous ILVs is called a multivesicular body (MVB). ILVs contain internalized molecules such as antigens, nucleic acids, proteins, and metabolites. Some of these molecules are released from the MVBs inside exosomes and are transported to other cells. Other MVBs contain molecules that are retained in the ILVs and are later degraded within the...
5.3K
02:04Covalently Linked Protein Regulators
10.0K
Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein....
These groups modify specific amino acids in a protein....
10.0K