Molecular Biology

, Volume 44, Issue 3, pp 431–438 | Cite as

Mutations in the DNA polymerase and thymidine kinase genes of herpes simplex virus clinical isolates resistant to antiherpetic drugs

  • A. N. Korovina
  • A. A. Gus’kova
  • M. Yu. Skoblov
  • V. L. Andronova
  • G. A. Galegov
  • S. N. Kochetkov
  • M. K. Kukhanova
  • Yu. S. Skoblov
Cell Molecular Biology


Primary structures of DNA polymerase (ul30) and thymidine kinase (ul23) genes from several herpes simplex virus type 1 (HSV-1) clinical isolates di ffering in sensitivity to several antiherpetic drugs were determined and compared to those of two laboratory HSV-1 strains one of which (L2) was sensitive and the other (L2/R) was resistant to acyclovir. The phylogenetic sequence analysis showed that the ul30 and ul23 sequences of clinical isolates were close to those of L2, and that ul30 conserved regions differed between HSV-1 isolates and L2 only in point mutations and degenerated substitutions. Several new mutations in the HSV-1 DNA polymerase and thymidine kinase functional domains were identified as substitutions associated with strain resistance to ACV and other antiherpetic drugs.

Key words

DNA polymerase thymidine kinase drug resistance herpes simplex virus primary structure 


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Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  • A. N. Korovina
    • 1
  • A. A. Gus’kova
    • 2
  • M. Yu. Skoblov
    • 2
  • V. L. Andronova
    • 3
  • G. A. Galegov
    • 3
  • S. N. Kochetkov
    • 1
  • M. K. Kukhanova
    • 1
  • Yu. S. Skoblov
    • 4
  1. 1.Engelhardt Institute of Molecular BiologyRussian Academy of SciencesMoscowRussia
  2. 2.Research Center for Medical GeneticsRussian Academy of Medical SciencesMoscowRussia
  3. 3.Ivanovsky Institute of VirologyRussian Academy of Medical SciencesMoscowRussia
  4. 4.Shemyakin & Ovchinnikov Institute ofBioorganic ChemistryRussian Academy of SciencesMoscowRussia

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