PMID- 20083192 OWN - NLM STAT- MEDLINE DCOM- 20110118 LR - 20131121 IS - 1096-1194 (Electronic) IS - 0890-8508 (Linking) VI - 24 IP - 4 DP - 2010 Aug TI - PCR with quenching probes enables the rapid detection and identification of ganciclovir-resistance-causing U69 gene mutations in human herpesvirus 6. PG - 167-77 LID - 10.1016/j.mcp.2010.01.002 [doi] AB - A single-nucleotide polymorphism detection assay using PCR with quenching probes (QP-PCR) was developed for the rapid detection of antiviral drug-resistance mutations of human herpesvirus 6 (HHV-6). The mutations examined were in the HHV-6 U69 gene, and were single-base mutations in sequences known to be associated with ganciclovir (GCV) resistance in HCMV. We previously confirmed that they conferred GCV resistance to recombinant baculoviruses (Nakano et al., J. Virol. Methods 161:223-230, 2009). Six characterized mutations, including a previously reported one that encodes a GCV-sensitive kinase-activity mutant (Isegawa et al., J. Clin. Virol. 44:15-19, 2009), were used. The six mutations were separated into three groups based on their location in the U69 protein, and detected by the hybridization of three probes. We developed and validated a set of assays for these mutations using PCR followed by differential melting of a fluorescently labeled oligo probe, on a Roche Light Cycler platform. Nucleobase quenching was used to detect the hybridized probe. The optimized assay could distinguish the different mutants, and easily detected mutants representing 30% of the DNA in a mixed sample. This QP-PCR assay permitted the rapid (1.5 h), objective, and reproducible detection of drug-resistant mutations of HHV-6. CI - Copyright 2010 Elsevier Ltd. All rights reserved. FAU - Isegawa, Yuji AU - Isegawa Y AD - Department of Infectious Disease Control, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan. isegawa@bact.med.osaka-u.ac.jp FAU - Matsumoto, Chisa AU - Matsumoto C FAU - Nishinaka, Kazuko AU - Nishinaka K FAU - Nakano, Kazushi AU - Nakano K FAU - Tanaka, Tatsuya AU - Tanaka T FAU - Sugimoto, Nakaba AU - Sugimoto N FAU - Ohshima, Atsushi AU - Ohshima A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20100118 PL - England TA - Mol Cell Probes JT - Molecular and cellular probes JID - 8709751 RN - 0 (Antiviral Agents) RN - 0 (DNA Probes) RN - 0 (Mutant Proteins) RN - 0 (Nucleotides) RN - 0 (Viral Proteins) RN - P9G3CKZ4P5 (Ganciclovir) SB - IM MH - Antiviral Agents/pharmacology MH - Child, Preschool MH - DNA Probes/*metabolism MH - Drug Resistance, Viral/drug effects/*genetics MH - Ganciclovir/*pharmacology MH - Genes, Viral/*genetics MH - Herpesvirus 6, Human/*genetics MH - Humans MH - Male MH - Mutant Proteins/chemistry/genetics MH - Mutation/*genetics MH - Nucleic Acid Denaturation/drug effects MH - Nucleotides/genetics MH - Polymerase Chain Reaction/*methods MH - Sensitivity and Specificity MH - Transition Temperature/drug effects MH - Viral Proteins/chemistry/genetics EDAT- 2010/01/20 06:00 MHDA- 2011/01/19 06:00 CRDT- 2010/01/20 06:00 PHST- 2009/09/30 00:00 [received] PHST- 2010/01/06 00:00 [revised] PHST- 2010/01/06 00:00 [accepted] PHST- 2010/01/20 06:00 [entrez] PHST- 2010/01/20 06:00 [pubmed] PHST- 2011/01/19 06:00 [medline] AID - S0890-8508(10)00003-4 [pii] AID - 10.1016/j.mcp.2010.01.002 [doi] PST - ppublish SO - Mol Cell Probes. 2010 Aug;24(4):167-77. doi: 10.1016/j.mcp.2010.01.002. Epub 2010 Jan 18.