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Related Concept Videos

Transcription01:10

Transcription

Overview
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
Transcription01:17

Transcription

Transcription is the synthesis of RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in correctly synthesizing messenger RNA (mRNA). Transcriptional regulation is responsible for the differentiation of different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds of RNA Molecules
In eukaryotes,...
Transcription01:10

Transcription

Overview
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
Transcription01:17

Transcription

Transcription is the synthesis of RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in correctly synthesizing messenger RNA (mRNA). Transcriptional regulation is responsible for the differentiation of different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds of RNA Molecules
In eukaryotes,...
Transcription Initiation01:47

Transcription Initiation

Initiation is the first step of transcription in eukaryotes. Prokaryotic RNA Polymerase (RNAP) can bind to the template DNA and start transcribing. On the other hand, transcription in eukaryotes requires additional proteins, called transcription factors, to first bind to the promoter region in the DNA template. This binding helps recruit the specific RNAP that can assemble on the DNA and start transcription.
The promoters and enhancers and their accessory proteins allow tight regulation of...
Transcription Elongation Factors02:35

Transcription Elongation Factors

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.
The transcription elongation is regulated via pausing of RNA polymerase on several occasions during transcription. In bacteria, these halts are necessary because the transcription of DNA into mRNA is coupled to the translation of that mRNA into a...

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Related Experiment Video

Updated: May 17, 2026

Functional Imaging of Viral Transcription Factories Using 3D Fluorescence Microscopy
09:03

Functional Imaging of Viral Transcription Factories Using 3D Fluorescence Microscopy

Published on: January 18, 2018

Transcription factories.

Dietmar Rieder1, Zlatko Trajanoski, James G McNally

  • 1Division of Bioinformatics, Biocenter, Innsbruck Medical University Innsbruck, Austria.

Frontiers in Genetics
|October 31, 2012
PubMed
Summary
This summary is machine-generated.

Transcription occurs at specialized sites called transcription factories, not diffusely. These factories organize chromatin and gene activity within the nucleus.

Keywords:
RNA polymerase IIfactorygene clusteringnucleustranscriptiontranscription factories

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Functional Imaging of Viral Transcription Factories Using 3D Fluorescence Microscopy
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Real-time Analysis of Transcription Factor Binding, Transcription, Translation, and Turnover to Display Global Events During Cellular Activation
12:54

Real-time Analysis of Transcription Factor Binding, Transcription, Translation, and Turnover to Display Global Events During Cellular Activation

Published on: March 7, 2018

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Genetics

Background:

  • Transcription is a fundamental biological process.
  • The spatial organization of transcription within the nucleus is not fully understood.
  • Evidence suggests transcription is localized rather than diffuse.

Purpose of the Study:

  • To review and synthesize evidence regarding the nature and function of transcription factories.
  • To explore the role of transcription factories in nuclear organization and gene regulation.

Main Methods:

  • Review of existing literature and experimental data on transcription sites.
  • Analysis of molecular composition and dynamics within transcription factories.
  • Examination of the relationship between transcription factories, chromatin structure, and gene clustering.

Main Results:

  • Transcription occurs at discrete sites known as transcription factories, containing multiple RNA polymerase molecules.
  • Transcription factories are associated with factors for transcriptional activation and mRNA processing.
  • Data suggest DNA reels through stationary polymerase molecules within factories.
  • Transcription factories may organize chromatin, form loops, and cluster co-regulated genes.

Conclusions:

  • Transcription factories are key functional units for gene expression and nuclear organization.
  • These sites play a crucial role in regulating gene activity and maintaining genome architecture.