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Sample Preparation for Mass Spectrometry-based Identification of RNA-binding Regions
10:52

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
PubMed

Insights

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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