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Related Concept Videos

Ribosome Profiling02:24

Ribosome Profiling

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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...
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pre-mRNA Processing02:01

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In eukaryotic cells, transcripts made by RNA polymerase are modified and processed before exiting the nucleus. Unprocessed RNA is called precursor mRNA or pre-mRNA to distinguish it from mature mRNA.
Once about 20-40 ribonucleotides have been joined together by RNA polymerase, a group of enzymes adds a “cap” to the 5’ end of the growing transcript. In this process, a 5’ phosphate is replaced by modified guanosine that has a methyl group attached to it (7-Methyl...
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Related Experiment Video

Updated: Jan 2, 2026

Visualizing and Tracking Endogenous mRNAs in Live Drosophila melanogaster Egg Chambers
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Lessons from (pre-)mRNA Imaging.

Srivathsan Adivarahan1, Daniel Zenklusen2

  • 1Département de Biochimie et médecine moléculaire, Université de Montréal, Montréal, Québec, Canada.

Advances in Experimental Medicine and Biology
|December 8, 2019
PubMed
Summary
This summary is machine-generated.

Microscopy visualizes RNA metabolism within cells, revealing gene regulation. Advanced imaging techniques offer new insights into cellular processes and mRNA dynamics.

Keywords:
Electron microscopyGene expressionIn situ hybridizationPolysomesRNA imagingSingle molecule microscopymRNAmRNPssmFISH

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Area of Science:

  • Cell Biology
  • Molecular Biology
  • Genetics

Background:

  • Cells utilize organelles and compartments for homeostasis.
  • Gene expression and RNA metabolism occur spatially and temporally within cells.

Purpose of the Study:

  • To describe the role of microscopy in understanding mRNA metabolism.
  • To outline how new microscopy approaches can advance gene regulation research.

Main Methods:

  • Microscopy techniques for studying biomolecules in intact cells.
  • Analysis of RNA localization and expression profiles.
  • Single-molecule imaging in living cells.

Main Results:

  • Microscopy preserves cellular context lost in bulk assays.
  • Advancements enable studying single RNA molecules and hundreds of mRNAs simultaneously.
  • Microscopy has significantly advanced understanding of gene regulation.

Conclusions:

  • Microscopy is crucial for studying spatial and temporal aspects of RNA metabolism.
  • Continuous development of microscopy tools will address outstanding questions in gene regulation.