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TaqMan probes are hydrolysis probes that are designed to increase the specificity of quantitative PCR.The method was first reported in 1991 by researcher Kary Mullis at Cetus Corporation, [1] and the technology was subsequently developed by Hoffmann-La Roche for diagnostic assays and by Applied Biosystems (now part of Thermo Fisher Scientific) for research applications.
TaqMan probes TaqMan probes are oligonucleotides that have a fluorescent probe attached to the 5' end and a quencher to the 3' end. During PCR amplification, these probes will hybridize to the target sequences located in the amplicon and as polymerase replicates the template with TaqMan bound, it also cleaves the fluorescent probe due to ...
(3) During PCR, the probe is degraded by the Taq polymerase and the fluorescent reporter released. Fluorescent reporter probes detect only the DNA containing the sequence complementary to the probe; therefore, use of the reporter probe significantly increases specificity, and enables performing the technique even in the presence of other dsDNA ...
Since the TaqMan assay is based on PCR, it is relatively simple to implement. The TaqMan assay can be multiplexed by combining the detection of up to seven SNPs in one reaction. However, since each SNP requires a distinct probe, the TaqMan assay is limited by the how close the SNPs can be situated. The scale of the assay can be drastically ...
Taq polymerase is a thermostable DNA polymerase I named after the thermophilic eubacterial microorganism Thermus aquaticus, from which it was originally isolated by master's student Alice Chien et al. in 1976. [1]
In molecular biology, a hybridization probe (HP) is a fragment of DNA or RNA, usually 15–10000 nucleotides long, which can be radioactively or fluorescently labeled. HPs can be used to detect the presence of nucleotide sequences in analyzed RNA or DNA that are complementary to the sequence in the probe. [ 1 ]
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