TaqMan probes as blocking agents for enriched PCR amplification and DNA melting analysis of mutant genes

Asymmetric PCR and DNA melting analysis with TaqMan probes applied for mutation detection is effectively used in clinical diagnostics. The method is simple, cost-effective, and carried out in a closed-tube format, minimizing time, labor, and risk of sample cross-contamination. Although DNA melting a...

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Veröffentlicht in:BioTechniques. - 1988. - 62(2017), 2 vom: 01. Feb., Seite 62-68
1. Verfasser: Botezatu, Irina V (VerfasserIn)
Weitere Verfasser: Panchuk, Irina O, Stroganova, Anna M, Senderovich, Anastasia I, Kondratova, Valentina N, Shelepov, Valery P, Lichtenstein, Anatoly V
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:BioTechniques
Schlagworte:Journal Article Research Support, Non-U.S. Gov't BRAF DNA melting analysis NRAS TaqMan probes blocking agents mutation detection DNA Probes Membrane Proteins mehr... DNA 9007-49-2 BRAF protein, human EC 2.7.11.1 Proto-Oncogene Proteins B-raf GTP Phosphohydrolases EC 3.6.1.- NRAS protein, human
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520 |a Asymmetric PCR and DNA melting analysis with TaqMan probes applied for mutation detection is effectively used in clinical diagnostics. The method is simple, cost-effective, and carried out in a closed-tube format, minimizing time, labor, and risk of sample cross-contamination. Although DNA melting analysis is more sensitive than Sanger sequencing (mutation detection thresholds are ~5% and 15%-20%, respectively), it is less sensitive than more labor-intensive and expensive techniques such as pyrosequencing and droplet digital PCR. Here, we demonstrate that, under specially selected conditions of asymmetric PCR, TaqMan probes can play the role of blocking agents. Preferential blocking of the wild-type allele brings about enriched amplification of mutant alleles. As a result, an ~10-fold increase in the detection sensitivity for mutant BRAF and NRAS genes was achieved 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a BRAF 
650 4 |a DNA melting analysis 
650 4 |a NRAS 
650 4 |a TaqMan probes 
650 4 |a blocking agents 
650 4 |a mutation detection 
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650 7 |a Membrane Proteins  |2 NLM 
650 7 |a DNA  |2 NLM 
650 7 |a 9007-49-2  |2 NLM 
650 7 |a BRAF protein, human  |2 NLM 
650 7 |a EC 2.7.11.1  |2 NLM 
650 7 |a Proto-Oncogene Proteins B-raf  |2 NLM 
650 7 |a EC 2.7.11.1  |2 NLM 
650 7 |a GTP Phosphohydrolases  |2 NLM 
650 7 |a EC 3.6.1.-  |2 NLM 
650 7 |a NRAS protein, human  |2 NLM 
650 7 |a EC 3.6.1.-  |2 NLM 
700 1 |a Panchuk, Irina O  |e verfasserin  |4 aut 
700 1 |a Stroganova, Anna M  |e verfasserin  |4 aut 
700 1 |a Senderovich, Anastasia I  |e verfasserin  |4 aut 
700 1 |a Kondratova, Valentina N  |e verfasserin  |4 aut 
700 1 |a Shelepov, Valery P  |e verfasserin  |4 aut 
700 1 |a Lichtenstein, Anatoly V  |e verfasserin  |4 aut 
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