Related Experiment Video
Updated: May 27, 2026
14:47
Identification of MyoD Interactome Using Tandem Affinity Purification Coupled to Mass Spectrometry
Published on: May 17, 2016
The interaction between MYB proteins and their target DNA binding sites
Michael B Prouse1, Malcolm M Campbell
1Centre for the Analysis of Genome Evolution & Function, Department of Cell & Systems Biology, University of Toronto, 25 Willcocks St., Toronto, ON, Canada M5S 3B2. michael.prouse@utoronto.ca
Biochimica Et Biophysica Acta
|November 10, 2011
Summary
MYB transcription factors regulate fundamental cellular processes and metabolism across eukaryotes. This review details MYB-DNA interactions, highlighting common themes and knowledge gaps, especially in plants.
Area of Science:
- Molecular Biology
- Genetics
- Biochemistry
Background:
- MYB transcription factors are crucial regulators in all eukaryotes, controlling fundamental cellular processes, metabolism, and differentiation.
- These proteins bind DNA sequence-specifically to modulate transcription at target genes.
- Understanding MYB-DNA interactions is key to deciphering gene regulation.
Purpose of the Study:
- To review current insights into the molecular interactions between MYB proteins and their DNA targets.
- To identify common themes in DNA binding across diverse MYB family members.
- To highlight knowledge gaps, particularly concerning plant MYB proteins, and suggest future research directions.
Main Methods:
- Literature review of studies on MYB protein-DNA interactions.
- Analysis of commonalities and differences in MYB DNA-binding mechanisms.
- Identification of areas requiring further investigation using emerging techniques.
Main Results:
- Established insights into the molecular mechanisms of MYB-DNA binding have been consolidated.
- Common themes in sequence-specific DNA recognition by various MYB proteins have emerged.
- Significant gaps in knowledge persist, especially regarding plant MYB proteins' DNA interactions.
Conclusions:
- MYB transcription factors exhibit conserved yet diverse DNA-binding strategies across eukaryotes.
- Further research, employing advanced protein-DNA interaction techniques, is needed to fully elucidate plant MYB functions.
- A comprehensive understanding of MYB-DNA interactions will advance fields from basic biology to agricultural applications.
Related Concept Videos
02:23Master Transcription Regulators
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...
02:13Cooperative Binding of Transcription Regulators
Transcriptional regulators bind to specific cis-regulatory sequences in the DNA to regulate gene transcription. These cis-regulatory sequences are very short, usually less than ten nucleotide pairs in length. The short length means that there is a high probability of the exact same sequence randomly occurring throughout the genome. Since regulators can also bind to groups of similar sequences, this further increases the chances of random binding. Transcriptional regulators form dimers that...
02:13Cooperative Binding of Transcription Regulators
Transcriptional regulators bind to specific cis-regulatory sequences in the DNA to regulate gene transcription. These cis-regulatory sequences are very short, usually less than ten nucleotide pairs in length. The short length means that there is a high probability of the exact same sequence randomly occurring throughout the genome. Since regulators can also bind to groups of similar sequences, this further increases the chances of random binding. Transcriptional regulators form dimers that...
02:04Co-activators and Co-repressors
Gene transcription is regulated by the synergistic action of several proteins that form a complex at a gene regulatory site. This is observed in eukaryotes, where the regulation of gene expression is a complex process. Regulatory proteins in eukaryotes can broadly be classified into two types – regulators that bind directly to specific DNA sequences and co-regulators that associate with regulatory proteins but cannot directly bind to the DNA. These co-regulators are further divided into...
02:04Co-activators and Co-repressors
Gene transcription is regulated by the synergistic action of several proteins that form a complex at a gene regulatory site. This is observed in eukaryotes, where the regulation of gene expression is a complex process. Regulatory proteins in eukaryotes can broadly be classified into two types – regulators that bind directly to specific DNA sequences and co-regulators that associate with regulatory proteins but cannot directly bind to the DNA. These co-regulators are further divided into...
02:36RNA Polymerase II Accessory Proteins
Proteins that regulate transcription can do so either via direct contact with RNA Polymerase or through indirect interactions facilitated by adaptors, mediators, histone-modifying proteins, and nucleosome remodelers. Direct interactions to activate transcription is seen in bacteria as well as in some eukaryotic genes. In these cases, upstream activation sequences are adjacent to the promoters, and the activator proteins interact directly with the transcriptional machinery. For example, in...