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Related Experiment Video

Updated: Mar 12, 2026

mRNA Interactome Capture from Plant Protoplasts
12:29

mRNA Interactome Capture from Plant Protoplasts

Published on: July 28, 2017

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UV crosslinked mRNA-binding proteins captured from leaf mesophyll protoplasts.

Zhicheng Zhang1, Kurt Boonen1, Piero Ferrari2

  • 1Department of Biology, KU Leuven, Kasteelpark Arenberg 31, 3001 Louvain, Belgium.

Plant Methods
|November 9, 2016
PubMed
Summary

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Researchers optimized mRNA interactome capture in Arabidopsis thaliana protoplasts. This method identifies RNA-binding proteins (RBPs) directly interacting with mRNA in vivo, advancing plant molecular biology.

Area of Science:

  • Plant molecular biology
  • Post-transcriptional gene regulation
  • Proteomics

Background:

  • RNA regulation is a complex frontier in molecular biology.
  • RNA-binding proteins (RBPs) mediate post-transcriptional gene regulation.
  • Interactome capture, using UV crosslinking and mass spectrometry, identifies mRNA-bound proteins.

Purpose of the Study:

  • To optimize and adapt the mRNA interactome capture method for Arabidopsis thaliana leaf mesophyll protoplasts.
  • To establish a robust system for identifying in vivo mRNA-protein interactions in plant cells.

Main Methods:

  • UV crosslinking of proteins to RNA within plant cells.
  • Purification of crosslinked mRNA using oligo-dT beads.
  • Mass spectrometry to identify bound proteins.
Keywords:
Arabidopsis thaliana leaf mesophyll protoplastsIn vivo UV crosslinkingMessenger RNA-binding proteinsMessenger ribonucleoprotein complexesmRNA-bound proteome

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Last Updated: Mar 12, 2026

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Main Results:

  • Optimized conditions for protein yield, including tissue amount, UV duration, and intensity.
  • Demonstrated high-efficiency mRNA-protein pull-down using oligo-d(T)25 beads.
  • Identified an enrichment of proteins with RNA-binding capacity, validating the method's specificity.

Conclusions:

  • The optimized method successfully identifies proteins capable of direct mRNA binding in plant cells.
  • This technique can be scaled for various plant cell types and species.
  • Contributes to a comprehensive understanding of the plant RNA-binding proteome.