Herpes simplex virus mutants with multiple substitutions affecting DNA binding of UL42 are impaired for viral replication and DNA synthesis

J Virol. 2007 Nov;81(21):12077-9. doi: 10.1128/JVI.01133-07. Epub 2007 Aug 22.


Herpes simplex virus mutants with single substitutions that decrease DNA binding by the DNA polymerase processivity subunit UL42 are only modestly impaired for viral replication. In this study, recombinant viruses harboring two or four of these mutations were constructed. The more substitutions, the more severe the defects in viral replication and DNA synthesis, suggesting that DNA binding by UL42 is important for these processes.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Animals
  • Chlorocebus aethiops
  • DNA / chemistry*
  • DNA Replication*
  • DNA, Viral / genetics
  • DNA-Directed DNA Polymerase / chemistry*
  • Exodeoxyribonucleases / chemistry*
  • Genes, Viral
  • Mutation*
  • Protein Binding
  • Simplexvirus / genetics*
  • Time Factors
  • Vero Cells
  • Viral Proteins / chemistry*
  • Virus Replication*


  • DNA, Viral
  • Viral Proteins
  • DNA
  • DNA-Directed DNA Polymerase
  • Exodeoxyribonucleases
  • DNA polymerase, Simplexvirus