Related Experiment Video
Updated: Jul 7, 2026
07:06
Visualizing RNA Localization in Xenopus Oocytes
Published on: January 14, 2010
Analysis of RNA export using Xenopus oocytes.
1University of Utah, Salt Lake City, Utah, USA.
Current Protocols in Cell Biology
|January 30, 2008
Summary
This study details a method for tracking RNA export in Xenopus oocytes. The technique quantifies RNA movement from the nucleus to the cytoplasm, aiding molecular biology research.
Area of Science:
- Molecular Biology
- Cell Biology
- Developmental Biology
Background:
- RNA export is a critical process in gene expression.
- Understanding RNA transport is vital for cellular function.
Purpose of the Study:
- To describe a quantitative method for monitoring RNA export.
- To enable the study of RNA transport dynamics in Xenopus oocytes.
Main Methods:
- In vitro synthesis of labeled RNA.
- Microinjection of RNA into Xenopus oocyte nuclei.
- Fractionation of oocytes into nuclear and cytoplasmic components.
- Quantitative RNA analysis.
Main Results:
- The procedure allows for the precise measurement of RNA export.
- The method is applicable to Xenopus oocyte models.
Conclusions:
- This technique provides a robust tool for studying RNA export mechanisms.
- Further research can utilize this method to investigate factors influencing RNA transport.
Related Concept Videos
01:42Nuclear Export
The nucleus restricts several proteins within and allows others to pass. The restricted proteins possess a nuclear retention sequence or NRS, anchoring them to the nuclear lamins and preventing their transport to the cytosol. The non-restricted proteins, after their synthesis, are transported to their site of action, such as the cytosol or other organelles, with the help of nuclear export signals or NES.
NES are of three types- the canonical 10-residue long leucine-rich signal and other...
NES are of three types- the canonical 10-residue long leucine-rich signal and other...
02:24Ribosome 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...
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...
02:22Regulated 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...
02:31Nuclear 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...