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Visualization and Analysis of mRNA Molecules Using Fluorescence In Situ Hybridization in Saccharomyces cerevisiae
Published on: June 14, 2013
Establishing MS2-MCP-based single-molecule RNA visualization in Schizosaccharomyces pombe
Douglas E Weidemann1, Sarah C Turner1, Samir G Chethan1
1Department of Biological Sciences, Virginia Tech, Blacksburg, VA 24061, USA.
Journal of Cell Science
|July 8, 2026
Summary
Researchers developed single-molecule RNA imaging for fission yeast using the MS2-MS2 bacteriophage system. This breakthrough enables quantitative analysis of RNA dynamics in this key model organism.
Area of Science:
- Molecular Biology
- Genetics
- Cell Biology
Background:
- Single-molecule RNA imaging is crucial for understanding RNA biology.
- The MS2-MCP system is widely used but not established in fission yeast (Schizosaccharomyces pombe).
- Fission yeast is a vital model for eukaryotic gene expression studies.
Purpose of the Study:
- To establish single-molecule RNA imaging in fission yeast.
- To optimize the MS2-MCP system for S. pombe.
- To enable quantitative analysis of RNA dynamics in fission yeast.
Main Methods:
- Systematic optimization of MCP (MS2 coat protein) expression and localization.
- Screening of constitutive S. pombe promoters.
- Evaluation of nuclear localization and export signals (NLSs/NESs).
- Utilizing tandem StayGold fluorescent tag for superior photostability.
- Development of optimized vectors for MS2 stem-loop tagging of endogenous transcripts.
Main Results:
- Successful implementation of single-molecule RNA imaging in S. pombe.
- Optimized MCP expression and localization achieved.
- Tandem StayGold tag demonstrated superior photostability.
- Developed tools for tagging endogenous transcripts.
Conclusions:
- Single-molecule RNA imaging is now feasible in fission yeast.
- The developed tools facilitate quantitative RNA dynamics studies.
- This advancement opens new avenues for research in a core genetic model.
