Document 0080 DOCN M94A0080 TI Capillary electrophoresis: detection of hybridization between synthetic oligonucleotides and HIV-1 genomic DNA amplified by polymerase-chain reaction. DT 9412 AU Bianchi N; Mischiati C; Feriotto G; Fiorentino D; Di Biase S; Apicella N; Gambari R; Biochemistry Institute, Ferrara University, Italy. SO J Virol Methods. 1994 May;47(3):321-9. Unique Identifier : AIDSLINE MED/94351052 AB The polymerase chain reaction (PCR) is one of the most efficient techniques for measuring the viral load of HIV-infected samples. Determination of the specificity of PCR products is usually based on Southern blotting and hybridization of the amplified DNA to radioactive oligonucleotide probes specific for sequences comprised between the PCR primers. The recent introduction of capillary electrophoresis (CE) for identification of HIV-1 and HTLV-I PCR products appears interesting in light of its reproducibility, sensitivity and because it is fast and suitable for detection of DNA/DNA and DNA/RNA hybrids. We demonstrate that specific hybridization of a HIV-1 oligonucleotide probe to single-stranded DNA obtained by unbalanced PCR is detectable by capillary electrophoresis. This enabled us the application of a one-step, non-radioactive protocol to demonstrate the specificity of amplification of HIV-1 genomic sequences by PCR. This procedure is simple, reproducible and is suggested as an integral part of automated diagnostic systems based on the use of laboratory work stations for DNA isolation, preparation of PCR reactions and analysis of PCR products. DE Base Sequence DNA, Viral/*CHEMISTRY/ISOLATION & PURIF Electrophoresis/*METHODS Genome, Viral HIV-1/*GENETICS Molecular Sequence Data Nucleic Acid Hybridization Oligonucleotides/*CHEMISTRY Polymerase Chain Reaction Support, Non-U.S. Gov't JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).