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Related Concept Videos

Transcription Factors02:16

Transcription Factors

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...
Transcription Factors02:16

Transcription Factors

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...
General Transcription Factors01:30

General Transcription Factors

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...
RNA Polymerase II Accessory Proteins02:36

RNA 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...
Co-activators and Co-repressors02:04

Co-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...
Co-activators and Co-repressors02:04

Co-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...

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Single-Molecule Imaging of EWS-FLI1 Condensates Assembling on DNA
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Transcription factor functionality and transcription regulatory networks.

Christian A Grove1, Albertha J M Walhout

  • 1Program in Gene Function and Expression, University of Massachusetts Medical School, Worcester, MA 01605, USA.

Molecular Biosystems
|March 21, 2008
PubMed
Summary

Understanding the "second genomic code" involves mapping transcription regulatory networks. This study discusses factors influencing transcription factor (TF) functionality crucial for accurate network mapping and gene expression insights.

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Last Updated: Jul 6, 2026

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Published on: September 8, 2021

Mapping the Structure-Function Relationships of Disordered Oncogenic Transcription Factors Using Transcriptomic Analysis
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Published on: June 27, 2020

Describing a Transcription Factor Dependent Regulation of the MicroRNA Transcriptome
07:23

Describing a Transcription Factor Dependent Regulation of the MicroRNA Transcriptome

Published on: June 15, 2016

Area of Science:

  • Genomics
  • Systems Biology
  • Molecular Biology

Background:

  • High-quality genome sequences are available, shifting focus to gene expression regulation.
  • Transcription regulatory networks are key to understanding gene expression at a systems level.
  • These networks detail interactions between transcription factors (TFs) and target genes.

Purpose of the Study:

  • To discuss factors influencing transcription factor (TF) functionality.
  • To highlight the importance of TF prediction accuracy in mapping transcription regulatory networks.
  • To explore how TF properties impact network functionality.

Main Methods:

  • Review of factors affecting transcription factor (TF) functionality.
  • Analysis of TF properties such as dimerization, co-factor interactions, and post-translational modifications.
  • Discussion on the impact of TF prediction quality on network mapping.

Main Results:

  • Transcription factor (TF) functionality is influenced by multiple protein properties beyond the genome's coding capacity.
  • Accurate TF predictions are essential for high-quality transcription regulatory network mapping.
  • TF properties directly affect the overall functionality of gene regulatory networks.

Conclusions:

  • Elucidating the "second genomic code" requires a deep understanding of transcription factor (TF) functionality.
  • Factors influencing TFs are critical for accurate systems-level gene expression analysis.
  • This work emphasizes the complexity of TF roles in biological systems.