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The genome of herpes simplex virus: structure, replication and evolution.

D J McGeoch1

  • 1Institute of Virology, University of Glasgow, Scotland.

Journal of Cell Science. Supplement
|January 1, 1987
PubMed
Summary

This study details the herpes simplex virus type 1 (HSV-1) genome structure, DNA replication, and evolution. Researchers are completing the HSV-1 sequence, revealing gene organization and functions crucial for virus DNA replication.

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Area of Science:

  • Virology
  • Molecular Biology
  • Genomics

Background:

  • Herpes simplex virus type 1 (HSV-1) is a significant human pathogen.
  • Understanding HSV-1 genome structure and replication is crucial for antiviral strategies.

Purpose of the Study:

  • To discuss the structure and genetic content of the HSV-1 genome.
  • To explore HSV-1 DNA replicative processes.
  • To analyze the evolution of HSV-1 DNA, particularly concerning DNA replication.

Main Methods:

  • Complete genome sequencing of HSV-1.
  • Analysis of DNA sequence and organization.
  • Gene prediction and functional analysis using bioinformatics and experimental methods.
  • Comparative genomics with related herpesviruses.

Main Results:

  • The HSV-1 genome comprises approximately 155,000 base pairs with about 75 densely arranged genes.
  • Key genetic entities for DNA replication include cis-acting sequences and specific replication proteins.
  • Comparative analysis with varicella-zoster virus and Epstein-Barr virus reveals genomic homologies, divergences, and rearrangements, informing models of herpesvirus evolution.

Conclusions:

  • The complete HSV-1 genome sequence provides a foundation for understanding its biology.
  • Insights into HSV-1 DNA replication and evolution are emerging from genomic and comparative analyses.
  • Further research is needed to assign functions to all identified HSV-1 genes.

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