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Related Experiment Videos

Interactions between a herpes simplex virus regulatory protein and cellular mRNA processing pathways

R M Sandri-Goldin1

  • 1College of Medicine, University of California at Irvine, Irvine, California, 92697-4025, USA. rmsandri@uci.edu

Methods (San Diego, Calif.)
|October 17, 1998
PubMed
Summary
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The herpes simplex virus type 1 (HSV-1) regulatory protein ICP27 impacts viral infection by altering host cell mRNA processing. This study identifies ICP27

Area of Science:

  • Molecular Virology
  • Cellular Biology
  • RNA Biology

Background:

  • Herpes simplex virus type 1 (HSV-1) immediate-early regulatory protein ICP27 is crucial for viral lytic infection.
  • ICP27 influences host protein synthesis, viral DNA replication, and gene expression.
  • ICP27 primarily functions post-transcriptionally, affecting mRNA processing, poly(A) site usage, splicing, and mRNA export.

Purpose of the Study:

  • To elucidate the precise mechanisms of ICP27's role in RNA processing pathways.
  • To identify all in vivo molecular interactions of ICP27.
  • To determine the functional significance of these interactions.

Main Methods:

  • Coimmunoprecipitation and immunoblotting to analyze protein-protein interactions.
  • Indirect immunofluorescence staining to assess ICP27's intracellular distribution.

Related Experiment Videos

  • In vivo UV irradiation followed by complex isolation to study ICP27-mRNA interactions.

    • Main Results:

    • ICP27 interacts with several splicing complex proteins.
    • ICP27 binds to intronless RNA transcripts in both the nucleus and cytoplasm.
    • ICP27's function in RNA transport was investigated using RNA polymerase II inhibitors.

    Conclusions:

    • ICP27 plays a significant role in post-transcriptional regulation of viral and potentially host gene expression.
    • Understanding ICP27's molecular interactions is key to deciphering its multifaceted functions in HSV-1 infection.
    • Further research into ICP27's interactions can reveal novel therapeutic targets for HSV-1.