Analysis of the UL97 phosphotransferase coding sequence in clinical cytomegalovirus isolates and identification of mutations conferring ganciclovir resistance

Sunwen Chou, Alejo Erice, M. Colin Jordan, Gregory M. Vercellotti, Kendall R. Michels, Christine L. Talarico, Sylvia C. Stanat, Karen K. Biron

Research output: Contribution to journalArticle

216 Citations (Scopus)

Abstract

The UL97 phosphotransferase coding sequences of clinical cytomegalovirus (CMV) isolates, 10 resistant and 11 sensitive to ganciclovir, were compared to define mutations associated with drug resistance. In each ganciclovir- resistant isolate, a mutation was found that resulted in an amino acid substitution at codon 460 (4 isolates), codon 594 (2 isolates), or codon 595 (4 isolates). No sensitive isolate carried any of these mutations. Marker transfer studies showed that each mutation was capable of conferring ganciclovir resistance to the laboratory CMV strain AD169. Rapid diagnostic tests based on DNA amplification and restriction enzyme analysis were developed for these mutations. Specific mutant DNAs were detected when they constituted at least 10% of the population in the specimen. Several mutations in UL97 appear to be common markers for ganciclovir resistance, and their detection may be a rapid alternative to conventional cell culture susceptibility testing.

Original languageEnglish (US)
Pages (from-to)576-583
Number of pages8
JournalJournal of Infectious Diseases
Volume171
Issue number3
StatePublished - Mar 1995
Externally publishedYes

Fingerprint

Ganciclovir
Cytomegalovirus
Phosphotransferases
Mutation
Codon
Restriction Mapping
DNA Restriction Enzymes
Amino Acid Substitution
Routine Diagnostic Tests
Drug Resistance
Clinical Coding
Cell Culture Techniques
DNA
Population

ASJC Scopus subject areas

  • Immunology
  • Public Health, Environmental and Occupational Health

Cite this

Analysis of the UL97 phosphotransferase coding sequence in clinical cytomegalovirus isolates and identification of mutations conferring ganciclovir resistance. / Chou, Sunwen; Erice, Alejo; Jordan, M. Colin; Vercellotti, Gregory M.; Michels, Kendall R.; Talarico, Christine L.; Stanat, Sylvia C.; Biron, Karen K.

In: Journal of Infectious Diseases, Vol. 171, No. 3, 03.1995, p. 576-583.

Research output: Contribution to journalArticle

Chou, S, Erice, A, Jordan, MC, Vercellotti, GM, Michels, KR, Talarico, CL, Stanat, SC & Biron, KK 1995, 'Analysis of the UL97 phosphotransferase coding sequence in clinical cytomegalovirus isolates and identification of mutations conferring ganciclovir resistance', Journal of Infectious Diseases, vol. 171, no. 3, pp. 576-583.
Chou, Sunwen ; Erice, Alejo ; Jordan, M. Colin ; Vercellotti, Gregory M. ; Michels, Kendall R. ; Talarico, Christine L. ; Stanat, Sylvia C. ; Biron, Karen K. / Analysis of the UL97 phosphotransferase coding sequence in clinical cytomegalovirus isolates and identification of mutations conferring ganciclovir resistance. In: Journal of Infectious Diseases. 1995 ; Vol. 171, No. 3. pp. 576-583.
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abstract = "The UL97 phosphotransferase coding sequences of clinical cytomegalovirus (CMV) isolates, 10 resistant and 11 sensitive to ganciclovir, were compared to define mutations associated with drug resistance. In each ganciclovir- resistant isolate, a mutation was found that resulted in an amino acid substitution at codon 460 (4 isolates), codon 594 (2 isolates), or codon 595 (4 isolates). No sensitive isolate carried any of these mutations. Marker transfer studies showed that each mutation was capable of conferring ganciclovir resistance to the laboratory CMV strain AD169. Rapid diagnostic tests based on DNA amplification and restriction enzyme analysis were developed for these mutations. Specific mutant DNAs were detected when they constituted at least 10{\%} of the population in the specimen. Several mutations in UL97 appear to be common markers for ganciclovir resistance, and their detection may be a rapid alternative to conventional cell culture susceptibility testing.",
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