Viral Hepatitis
Copyright ©2005 Baishideng Publishing Group Inc.
World J Gastroenterol. Jan 28, 2005; 11(4): 469-475
Published online Jan 28, 2005. doi: 10.3748/wjg.v11.i4.469
Figure 2
Figure 2 Strategy of HCV Guideline test. Step 1: The PCR product (here genotype 1) was hybridized to the specific capture probe, immobilized on a micro-plate. Other PCR products (e.g. of genotype 2) did not hybridize to the immobilized probe and were captured by the competitive oligonucleotide probes. The genotype specific-hybridized PCR product is retained on the micro-plate, while other PCR products were washed out from the plate. Step 2: Additional universal biotin-labeled-probes hybridized to the specific PCR product resulting in signal amplification. Step 3: Biotin reacted with streptavidine which was conjugated to the horseradish-peroxidase (HRP) enzyme. The color reaction was measured after the addition of enzyme specific substrates.