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Related Concept Videos

Regulated mRNA Transport02:22

Regulated mRNA Transport

In eukaryotes, transcription and translation are compartmentalized; an mRNA is first synthesized in the nucleus and then selectively transported to the cytoplasm for protein synthesis. Before transport, a pre-mRNA undergoes several steps of post-transcriptional modifications including splicing, 5' capping, and the addition of a poly-adenine tail. Various proteins bind to the pre-mRNA during these modifications. The mRNA transport takes place with the help of multiple proteins playing specific...
Regulated mRNA Transport02:22

Regulated mRNA Transport

In eukaryotes, transcription and translation are compartmentalized; an mRNA is first synthesized in the nucleus and then selectively transported to the cytoplasm for protein synthesis. Before transport, a pre-mRNA undergoes several steps of post-transcriptional modifications including splicing, 5' capping, and the addition of a poly-adenine tail. Various proteins bind to the pre-mRNA during these modifications. The mRNA transport takes place with the help of multiple proteins playing specific...
Nuclear Export of mRNA02:31

Nuclear Export of mRNA

Before mRNAs are exported to the cytoplasm, it is crucial to check each mRNA for structural and functional integrity. Eukaryotic cells use several different mechanisms, collectively known as mRNA surveillance, to look for irregularities in mRNAs. Irregular or aberrant mRNA are rapidly degraded by various enzymes. If a defective mRNA escapes the surveillance, it would be translated into a protein which would either be non-functional or not function properly. One of the primary irregularities in...
Nuclear Export of mRNA02:31

Nuclear Export of mRNA

Before mRNAs are exported to the cytoplasm, it is crucial to check each mRNA for structural and functional integrity. Eukaryotic cells use several different mechanisms, collectively known as mRNA surveillance, to look for irregularities in mRNAs. Irregular or aberrant mRNA are rapidly degraded by various enzymes. If a defective mRNA escapes the surveillance, it would be translated into a protein which would either be non-functional or not function properly. One of the primary irregularities in...
Ribosome Profiling02:24

Ribosome Profiling

Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique helps...
Directing Proteins to the Rough Endoplasmic Reticulum01:34

Directing Proteins to the Rough Endoplasmic Reticulum

The organelle-specific signaling sequences direct proteins synthesized in the cytosol to their final destination like ER, mitochondria, peroxisomes, etc. Some of the proteins directed to ER are then trafficked via vesicles to other organelles within the cell or the extracellular environment through the Golgi complex. For example, the rough ER synthesizes soluble proteins for transportation to the lysosomes or secretion out of the cell. It can also synthesize transmembrane proteins that can...

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Related Experiment Video

Updated: Jun 13, 2026

Visualization of Endoplasmic Reticulum Localized mRNAs in Mammalian Cells
10:24

Visualization of Endoplasmic Reticulum Localized mRNAs in Mammalian Cells

Published on: December 17, 2012

Making the message clear: visualizing mRNA localization.

Timothy T Weil1, Richard M Parton, Ilan Davis

  • 1Department of Biochemistry, University of Oxford, Oxford OX1 3QU, UK.

Trends in Cell Biology
|May 7, 2010
PubMed
Summary
This summary is machine-generated.

New visualization techniques enhance the study of messenger RNA (mRNA) localization in cells. These advanced methods improve detection and tracking of mRNA, offering deeper insights into cellular processes.

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Visualizing RNA Localization in Xenopus Oocytes
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Visualizing RNA Localization in Xenopus Oocytes

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Real-time Imaging of Single Engineered RNA Transcripts in Living Cells Using Ratiometric Bimolecular Beacons
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Real-time Imaging of Single Engineered RNA Transcripts in Living Cells Using Ratiometric Bimolecular Beacons

Published on: August 6, 2014

Related Experiment Videos

Last Updated: Jun 13, 2026

Visualization of Endoplasmic Reticulum Localized mRNAs in Mammalian Cells
10:24

Visualization of Endoplasmic Reticulum Localized mRNAs in Mammalian Cells

Published on: December 17, 2012

Visualizing RNA Localization in Xenopus Oocytes
07:06

Visualizing RNA Localization in Xenopus Oocytes

Published on: January 14, 2010

Real-time Imaging of Single Engineered RNA Transcripts in Living Cells Using Ratiometric Bimolecular Beacons
12:20

Real-time Imaging of Single Engineered RNA Transcripts in Living Cells Using Ratiometric Bimolecular Beacons

Published on: August 6, 2014

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Genetics

Background:

  • Localized messenger RNA (mRNA) is crucial for spatial and temporal protein production, impacting cell development and function.
  • Understanding mRNA localization mechanisms is essential for comprehending cellular physiology.

Purpose of the Study:

  • To review and discuss advancements in methods for visualizing mRNA within cells.
  • To highlight how new techniques have expanded the understanding of intracellular mRNA localization.

Main Methods:

  • In situ hybridization for enhanced detection in fixed tissues, including ultrastructural analysis with electron microscopy.
  • Methods for observing mRNA dynamics in living cells: microinjection of labeled transcripts, hybridization-based probes, and transgenic tagging of endogenous mRNAs.
  • Integration of super-resolution light microscopy with existing and novel mRNA visualization techniques.

Main Results:

  • Improved ease and specificity in detecting mRNA distribution in fixed samples.
  • Enabled examination of mRNA localization at the ultrastructural level.
  • Widespread adoption of live-cell mRNA tracking methods, including microinjection, probe hybridization, and transgenic tagging.
  • Advancements facilitate the study of mRNA dynamics and localization mechanisms.

Conclusions:

  • Technical innovations in mRNA visualization are revolutionizing the study of mRNA localization.
  • These methods provide unprecedented insights into the dynamics and complexity of mRNA localization mechanisms.
  • Future research will leverage these techniques to further unravel cellular processes dependent on mRNA localization.