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Related Experiment Videos

Gene expression analysis of messenger RNP complexes.

Luiz O F Penalva1, Scott A Tenenbaum, Jack D Keene

  • 1The Center For RNA Biology, Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC, USA.

Methods in Molecular Biology (Clifton, N.J.)
|February 11, 2004
PubMed
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This study introduces ribonomics, a systems biology method to identify endogenous messenger RNA (mRNA) transcripts bound by RNA-binding proteins. This approach facilitates understanding cellular mRNA organization and gene regulation.

Area of Science:

  • Molecular Biology
  • Systems Biology
  • Genomics

Background:

  • RNA-binding proteins (RBPs) organize messenger RNAs (mRNAs) into functional subsets for coordinated gene expression.
  • Traditional in vitro methods identify single RBP targets, limiting the study of endogenous mRNA-protein complexes.
  • A need exists for direct methods to identify multiple endogenous RNAs associated with specific RBPs.

Purpose of the Study:

  • To develop and describe a systems biology approach, termed ribonomics, for identifying endogenous mRNA transcripts associated with RBPs.
  • To enable a comprehensive understanding of posttranscriptional mRNA organization within the cell.
  • To leverage high-throughput genomic technologies for global analysis of mRNA-protein interactions.

Main Methods:

  • Purification of messenger RNA-protein complexes (mRNPs) from cellular extracts.

Related Experiment Videos

  • Utilizing high-throughput genomic array technologies to identify associated mRNAs.
  • Application of a systems biology approach (ribonomics) for comprehensive analysis.

    • Main Results:

    • The ribonomics approach enables the identification of multiple endogenous mRNA transcripts bound by specific RBPs.
    • This method provides insights into the coordinate regulation of gene classes.
    • Facilitates the study of global gene expression changes influenced by mRNA-protein interactions.

    Conclusions:

    • Ribonomics offers a powerful systems biology tool for dissecting endogenous mRNA-protein interactions.
    • This approach advances the understanding of posttranscriptional gene regulation and cellular organization.
    • Enables comprehensive analysis of mRNA-binding protein targets in their native cellular context.