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Related Concept Videos

Protein Networks02:26

Protein Networks

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An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
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Transcription Factors02:16

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Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
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Transcription Elongation Factors02:35

Transcription Elongation Factors

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Transcription elongation is a dynamic process that alters depending upon the sequence heterogeneity of the DNA being transcribed. Hence, it is not surprising that the elongation complex's composition also varies along the way while transcribing a gene.
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Eukaryotic Transcription Activators02:42

Eukaryotic Transcription Activators

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Transcription activators are proteins that promote the transcription of genes from DNA to RNA. In most cases, these proteins contain two separate domains ‒ a domain that binds to DNA and a domain for activating transcription; however, in some cases, a single domain is responsible for both binding and activation of transcription, as seen in the glucocorticoid receptor and MyoD.
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siRNA - Small Interfering RNAs02:30

siRNA - Small Interfering RNAs

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Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
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Related Experiment Video

Updated: Feb 5, 2026

Quantification of Protein Interaction Network Dynamics using Multiplexed Co-Immunoprecipitation
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Quantification of Protein Interaction Network Dynamics using Multiplexed Co-Immunoprecipitation

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Modulating transcription factor activity: Interfering with protein-protein interaction networks.

Mathias Francois1, Prue Donovan2, Frank Fontaine1

  • 1The Institute for Molecular Bioscience, The University of Queensland, QBP Bldg 80, 306 Carmody Road, QLD 4072, Australia.

Seminars in Cell & Developmental Biology
|September 3, 2018
PubMed
Summary

Understanding transcription factor (TF) biophysics, including binding sites and interactions, is crucial for drug discovery. New insights into TF interactomes and genome-wide regulation offer novel therapeutic strategies.

Keywords:
Developmental biologyDrug developmentNetworkProtein-protein interactionsRedundancySmall compoundsTranscription factor

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Area of Science:

  • Molecular Biology
  • Biophysics
  • Genomics

Background:

  • Transcription factor (TF) activity is governed by biophysical parameters like binding locations, dwell time, and protein-protein interactions.
  • Current small molecule drug discovery methods often overlook these critical biophysical features.
  • Advances in understanding TF biology have revealed genome-wide interactomes and transcriptional regulation.

Purpose of the Study:

  • To review the progress in transcription factor biology.
  • To highlight the importance of biophysical parameters in TF activity.
  • To propose novel drug discovery approaches based on new knowledge of TF interactomes and genome-wide regulation.

Main Methods:

  • Literature review of transcription factor biology.
  • Analysis of genome-wide interactome data.
  • Examination of transcriptional regulation mechanisms.

Main Results:

  • Deciphering of TF interactomes on a genome-wide scale.
  • Elucidation of genome-wide transcriptional regulation by TFs.
  • Identification of key biophysical parameters influencing TF activity.

Conclusions:

  • New knowledge of TF interactomes and genome-wide regulation provides a foundation for innovative drug discovery.
  • Incorporating biophysical parameters into drug development can lead to more effective therapies.
  • Future research should focus on leveraging these insights for targeted therapeutic interventions.