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Related Concept Videos

Eukaryotic Transcription Inhibitors01:52

Eukaryotic Transcription Inhibitors

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Certain biochemical processes, such as embryonic development and cell growth regulation, depend on the repression of specific genes. DNA binding proteins known as eukaryotic transcription inhibitors regulate the repression of gene expression in eukaryotes. The presence of these inhibitors at the required location and time in the cell is triggered by the presence of hormones and additional signals from other cells.
Eukaryotic transcription inhibitors usually contain two distinct domains, a...
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Transcriptional attenuation occurs when RNA transcription is prematurely terminated due to the formation of a terminator mRNA hairpin structure.  Bacteria use these hairpins to regulate the transcription process and control the synthesis of several amino acids including histidine, lysine, threonine, and phenylalanine. Transcription attenuation takes place in the non-coding regions of mRNA.
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RNA Interference01:23

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RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
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Experimental RNAi02:15

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RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
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Transcriptional Regulation: Riboswitches01:23

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Riboswitches are RNA elements that regulate gene expression by altering their secondary structures in response to specific effector molecules. These elements, located in the leader regions of certain mRNAs, act as transcriptional regulators by toggling between alternative conformations to control downstream gene expression. Riboswitch-mediated regulation is a precise mechanism for modulating biosynthetic pathways, as exemplified by the riboflavin biosynthesis pathway in Bacillus...
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Related Experiment Video

Updated: Mar 13, 2026

Dissection of Enhancer Function Using Multiplex CRISPR-based Enhancer Interference in Cell Lines
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Transcriptional interference revisited.

Martin Fischer1,2, Steve Hoffmann3

  • 1Computational Biology Group, Leibniz Institute on Aging-Fritz Lipmann Institute (FLI), Jena, Germany. martin.fischer@med.ovgu.de.

Nature Genetics
|March 12, 2026
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Summary
This summary is machine-generated.

Transcriptional interference, a gene regulation model, may not apply universally. New data show overlapping transcription rarely inhibits gene expression, challenging this long-held concept.

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Related Experiment Videos

Last Updated: Mar 13, 2026

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Area of Science:

  • Molecular Biology
  • Genetics
  • Gene Regulation

Background:

  • The transcriptional interference model posits that overlapping RNA polymerases inhibit transcription and cis-regulatory elements.
  • This concept of reciprocal inhibition between sense and antisense transcription is a fundamental idea in gene regulation.

Purpose of the Study:

  • To evaluate the universal applicability of the transcriptional interference model.
  • To investigate the influence of overlapping transcription on gene regulation using large-scale transcriptome data.

Main Methods:

  • Analysis of large-scale transcriptome studies.
  • Examination of loci with overlapping transcription units.

Main Results:

  • Evidence suggests transcriptional interference is absent in the majority of loci with overlapping transcription.
  • The measurable influence of this regulatory mechanism is not as widespread as previously thought.

Conclusions:

  • The universal applicability of the transcriptional interference model is questioned by recent findings.
  • Understanding locus-specific sensitivity or resistance to interference is key to advancing gene regulation insights.