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Sample Preparation for Mass Spectrometry-based Identification of RNA-binding Regions
Published on: September 28, 2017
Selection of RNA-binding peptides using mRNA-peptide fusions
J E Barrick1, T T Takahashi, A Balakin
1Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA.
Methods (San Diego, Calif.)
|March 13, 2001
Summary
We developed efficient in vitro selection protocols to isolate novel RNA-binding peptides using mRNA-protein fusions. These methods reliably enrich functional peptides from complex mixtures, aiding new molecule discovery.
Area of Science:
- Molecular Biology
- Biochemistry
- Peptide Chemistry
Background:
- In vitro selection is a powerful technique for discovering novel functional molecules.
- mRNA-protein fusions link peptides to their encoding mRNA, enabling selection.
- Identifying specific RNA-binding peptides is crucial for various biological applications.
Purpose of the Study:
- To develop and optimize reliable in vitro selection protocols for isolating RNA-binding peptides.
- To demonstrate the efficiency of the developed protocols using a model system.
Main Methods:
- Utilized mRNA-protein fusions, specifically linking the arginine-rich domain of bacteriophage lambda-N protein to its boxB RNA target.
- Systematically investigated and refined selection round pathways.
- Developed a protocol to enrich functional RNA-binding peptides from complex mixtures.
Main Results:
- Established a reliable and efficient protocol for in vitro selection of RNA-binding peptides.
- Demonstrated the enrichment of specific RNA-binding peptides from a non-functional library.
- The developed protocols significantly improve the isolation process.
Conclusions:
- The developed in vitro selection protocols are effective for isolating novel RNA-binding peptides.
- These protocols facilitate the discovery of new molecules using the mRNA-protein fusion system.
- The methodology provides a robust platform for future molecular selection studies.
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