Quantification of HIV-1 Using Multiple Competitors in a Single-Tube Assay

Autor: T. Vener, M. Axelsson, J. Albert, M. Uhlén, J. Lundeberg
Jazyk: angličtina
Rok vydání: 1996
Předmět:
Zdroj: BioTechniques, Vol 21, Iss 2, Pp 248-255 (1996)
Druh dokumentu: article
ISSN: 1940-9818
0736-6205
DOI: 10.2144/96212st01
Popis: Methods for quantification of human immunodeficiency virus type 1 (HIV-1) based on competitive PCR and fragment analysis have been developed. Samples containing HIV-1 DNA and known amounts of three cloned competitors were co-amplified by PCR with semi-nested primers. The competitor DNAs contained the same long terminal repeat primer binding sequences as the wild-type DNA, but they are different in internal sequences and length. One of the inner primers was fluorescent-labeled to allow discrimination between the wild-type DNA and the three competitors by fragment analysis using a standard automated sequencer. A calibration curve using the peak area of the three competitors enabled accurate determination of target amount with minimal variations. The method presented here can be used for quantification of HIV-1 in clinical samples and will be useful for monitoring disease progression and treatment effects.
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