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Translational control of equine herpesvirus type 1 gene expression

V G Chinchar1, W Yu, H S Hsu

  • 1Department of Microbiology, University of Mississippi Medical Center, Jackson 39216-4505.

Virology
|January 1, 1991
PubMed

Insights

Equine herpesvirus type 1 selectively inhibits protein synthesis under hypertonic conditions, indicating post-transcriptional gene regulation. This study reveals how viral gene expression is controlled at the post-transcriptional level.

Area of Science:

  • Molecular Biology
  • Virology
  • Gene Expression Regulation

Background:

  • Translational control is crucial for gene expression in cellular and viral systems.
  • Equine herpesvirus type 1 (EHV-1) infection impacts host cell processes.

Purpose of the Study:

  • To investigate the translational control mechanisms of equine herpesvirus type 1 (EHV-1) gene expression.
  • To determine if EHV-1 gene expression is regulated at the post-transcriptional level.

Main Methods:

  • In vivo experiments using hypertonic conditions to inhibit protein synthesis.
  • In vitro experiments utilizing potassium acetate to block translation initiation.
  • Northern blot analyses to assess mRNA levels.

Main Results:

  • Selective inhibition of major EHV-1 protein synthesis under hypertonic conditions.
  • Differential resistance of viral mRNA species to salt-induced inhibition.
  • Decline in cellular mRNA levels observed post-infection.

Conclusions:

  • EHV-1 gene expression is, in part, controlled at the post-transcriptional level.
  • Hypertonic conditions selectively affect the translation of specific viral proteins.
  • EHV-1 modulates host cell mRNA levels during infection.

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