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Related Concept Videos

siRNA - Small Interfering RNAs02:30

siRNA - Small Interfering RNAs

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.
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the ATP-dependent...
RNA Interference01:23

RNA Interference

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.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
RNA Interference01:23

RNA Interference

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.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
Experimental RNAi02:15

Experimental RNAi

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...
Types of RNA01:20

Types of RNA

Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA Performs Diverse...
Types of RNA01:23

Types of RNA

Overview
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...

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Related Experiment Video

Updated: Jun 10, 2026

Cell Based Assays of SINEUP Non-coding RNAs That Can Specifically Enhance mRNA Translation
10:21

Cell Based Assays of SINEUP Non-coding RNAs That Can Specifically Enhance mRNA Translation

Published on: February 1, 2019

What are natural antisense transcripts good for?

Andreas Werner1, Daniel Swan

  • 1RNA Biology Group, Institute for Cell and Molecular Biosciences, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK. andreas.werner@ncl.ac.uk

Biochemical Society Transactions
|July 28, 2010
PubMed
Summary
This summary is machine-generated.

Natural antisense transcripts (NATs) regulate gene expression. Emerging research reveals NATs also function in gene silencing through endogenous siRNAs and transcriptional silencing, expanding their known regulatory roles.

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Sequence-specific and Selective Recognition of Double-stranded RNAs over Single-stranded RNAs by Chemically Modified Peptide Nucleic Acids
09:04

Sequence-specific and Selective Recognition of Double-stranded RNAs over Single-stranded RNAs by Chemically Modified Peptide Nucleic Acids

Published on: September 21, 2017

Related Experiment Videos

Last Updated: Jun 10, 2026

Cell Based Assays of SINEUP Non-coding RNAs That Can Specifically Enhance mRNA Translation
10:21

Cell Based Assays of SINEUP Non-coding RNAs That Can Specifically Enhance mRNA Translation

Published on: February 1, 2019

Sequence-specific and Selective Recognition of Double-stranded RNAs over Single-stranded RNAs by Chemically Modified Peptide Nucleic Acids
09:04

Sequence-specific and Selective Recognition of Double-stranded RNAs over Single-stranded RNAs by Chemically Modified Peptide Nucleic Acids

Published on: September 21, 2017

Area of Science:

  • Molecular Biology
  • Gene Regulation
  • RNA Biology

Background:

  • Natural antisense transcripts (NATs) are known regulators of eukaryotic gene expression.
  • Interference between sense transcripts and NATs is a well-documented phenomenon.

Purpose of the Study:

  • To review the emerging higher-order roles of NATs.
  • To highlight the novel functions of NATs in gene regulation.

Main Methods:

  • Literature review of recent discoveries in NAT function.
  • Analysis of the role of endogenous siRNAs.
  • Examination of NAT-induced transcriptional gene silencing.

Main Results:

  • NATs play a significant role beyond simple transcript interference.
  • Endogenous siRNAs are implicated in NAT-mediated gene regulation.
  • NATs can induce transcriptional gene silencing, a novel regulatory mechanism.

Conclusions:

  • NATs possess a higher-order function in gene regulation.
  • The discovery of endogenous siRNAs and NAT-induced transcriptional silencing reveals new pathways for gene control by NATs.