Value of a ligase chain reaction assay for detection of ganciclovir resistance-related mutation 594 in UL97 gene of human cytomegalovirus.
J Virol Methods
; 67(2): 167-75, 1997 Sep.
Article
in En
| MEDLINE
| ID: mdl-9300382
ABSTRACT
Human cytomegalovirus (HCMV) isolates resistant to ganciclovir were found in patients undergoing therapy. Therefore, we have developed a new specific and sensitive method--a ligase chain reaction (LCR) assay--for detection of frequently encountered 594 mutated codon in ganciclovir (GCV) resistant virus. Previous studies characterized an alanine to valine change on codon 594 in resistant strains. A novel substitution in 594, alanine to glycine, is described which is also capable of conferring ganciclovir resistance. LCR products were analyzed on polyacrylamide gel- and the mutant was detected using a non radioactive method. The LCR product detection was then adapted to a microtitre plate format with a colorimetric detection. This method allowed the distinction of mutated GCV-resistant strains from sensitive strains with a high sensitivity, and the detection of a low percentage of mutated DNA in virus load. This assay could be useful in following the evolution of mutated DNA compared to viral infection.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Ganciclovir
/
Viral Structural Proteins
/
Polymerase Chain Reaction
/
Point Mutation
/
Phosphotransferases (Alcohol Group Acceptor)
/
Cytomegalovirus
/
Genes, Viral
Type of study:
Diagnostic_studies
Limits:
Humans
Language:
En
Journal:
J Virol Methods
Year:
1997
Document type:
Article
Affiliation country:
Francia