title: Evaluation of four PCR systems amplifying different genomic regions for molecular diagnosis of GB virus C infections.
abstract: Diagnosis of GB virus C (GBV-C) infection is based on RT-PCR methodology that detects genomic viral RNA. Four sets of primers located in different genomic regions were compared. These primers were used to amplify a reference panel of sera used by the French blood banks, including five positive sera, five negative sera and 10-fold serial dilutions of one positive serum. Three sets of primers located in the 5'UTR, NS3 and NS5a genomic regions gave comparable results with undiluted sera. When diluted sera were tested, the most sensitive protocol was that using a set of primers and a probe selected within the 5'UTR, together with a colorimetric detection based on DNA enzyme immunoassay.
authors.affiliation: Laboratoire de Biologie Moléculaire, Centre régional de Transfusion Sanguine de Marseille, France.
authors.forename: J F
authors.initials: JF
authors.lastname: Cantaloube
authors.forename: R N
authors.initials: RN
authors.lastname: Charrel
authors.forename: H
authors.initials: H
authors.lastname: Attoui
authors.forename: P
authors.initials: P
authors.lastname: Biagini
authors.forename: P
authors.initials: P
authors.lastname: De Micco
authors.forename: X
authors.initials: X
authors.lastname: De Lamballarie
mesh_terms: D005069:Evaluation Studies as Topic; D018067:Flaviviridae / Q000235:genetics / Q000302:isolation & purification*; D016679:Genome, Viral; D006525:Hepatitis, Viral, Human / Q000097:blood / Q000175:diagnosis / Q000821:virology*; D006801:Humans; D016133:Polymerase Chain Reaction / Q000379:methods*; D020365:RNA Helicases; D012367:RNA, Viral / Q000032:analysis; D012680:Sensitivity and Specificity; D012697:Serine Endopeptidases; D017361:Viral Nonstructural Proteins / Q000235:genetics; D043583:Nucleoside-Triphosphatase; D053487:DEAD-box RNA Helicases; D000085242:Viral Proteases
chemical_list: D020365:RNA Helicases; D012367:RNA, Viral; D012697:Serine Endopeptidases; D017361:Viral Nonstructural Proteins; C060028:NS3 protein, flavivirus; D043583:Nucleoside-Triphosphatase; D053487:DEAD-box RNA Helicases; D000085242:Viral Proteases; C096041:NS5 protein, flavivirus