Abstract
We developed a multiplex ABO genotyping method with quenching probes (Q-probe). In this method, it is possible to discriminate the mutations, not only frequently used positions 261 and 796 but also position 703 in a single PCR. Each probe was designed to have cytosine residue at 5′ or 3′ end and labeled with three different fluorescence dyes, enabling the triplex detections of these polymorphisms. All polymorphisms were successfully detected by using fluorescence labeled Q-probe in a specifically amplified PCR product. Each Q-probe showed unique dissociation patterns depending on the polymorphism types. All of the results obtained with Q-probe were compared with standard serotyping and TaqMan PCR method and resulted in complete match with each other. Consequently, these results indicated that multiplex ABO genotyping method is quite accurate and convenient method for the determination of ABO genotype.
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