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Related Experiment Videos

Nuclear export assays for poly(A) RNAs.

Papia Chakraborty1, Neal Satterly, Beatriz M A Fontoura

  • 1Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390-9039, USA.

Methods (San Diego, Calif.)
|August 29, 2006
PubMed
Summary
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Investigating mRNA nuclear export, this review highlights reporter gene assays and oligo(dT) in situ hybridization. These methods help identify disruptions in gene expression regulation and mRNA export pathways.

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Genetics

Background:

  • Nuclear export of messenger RNAs (mRNAs) is crucial for eukaryotic gene expression.
  • Defects in mRNA export can arise from direct disruption of the export machinery or indirectly from mRNA biogenesis issues.
  • Viral-host interactions, such as VSV M protein binding Rae1/Nup98, can interfere with mRNA export, causing nuclear mRNA retention.

Purpose of the Study:

  • To review methodologies for studying the regulation of mRNA nuclear export.
  • To present reporter gene assays and oligo(dT) in situ hybridization as tools for analyzing mRNA export.
  • To discuss the combined use of these techniques for comprehensive investigation.

Main Methods:

  • Reporter gene assays to assess gene expression changes at various levels (transcription, processing, export, translation).

Related Experiment Videos

  • Oligo(dT) in situ hybridization to determine the intracellular distribution of poly(A) RNA, indicating export status.
  • Combination of oligo(dT) in situ hybridization with immunofluorescence for simultaneous protein and RNA localization.

    • Main Results:

    • Reporter gene assays are rapid and suitable for high-throughput screening of gene expression regulation.
    • Oligo(dT) in situ hybridization is a more detailed method for confirming mRNA export disruptions, ideal for secondary screening.
    • Combined techniques allow for precise localization of proteins and their effects on endogenous or expressed mRNA.

    Conclusions:

    • Reporter gene assays and oligo(dT) in situ hybridization are valuable tools for studying mRNA nuclear export.
    • These assays facilitate the identification of regulatory effects impacting mRNA export pathways.
    • The reviewed methodologies aid in understanding both normal gene expression and disease-related disruptions.