Europium-labeled oligonucleotides to detect point mutations : Application to PI Z α1-antitrypsin deficiency
We describe a novel assay for detection of point mutations. The method combines the specificity and sensitivity of the polymerase chain reaction (PCR) and allele-specific oligonucleotides (ASO) with highly sensitive time- resolved fluorometry. ASO probes differing by a single base substitution and labeled with europium (Eu) chelates were hybridized in solution simultaneously with a biotinylated ol