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Updated: May 29, 2026

A Method to Study the C924T Polymorphism of the Thromboxane A2 Receptor Gene
Published on: April 1, 2019
Rapid allele-specific PCR method for CDA 79A>C (K27Q) genotyping: a useful pharmacogenetic tool and world-wide
Francesco M Carpi1, Jialin Xu, Silvia Vincenzetti
1School of Biosciences and Biotechnologies, University of Camerino, Camerino, Italy.
Background:
The CDA 79A>C (K27Q, rs2072671) functional SNP has recently shown a crucial role in the pharmacogenetics of cytidine-based anticancer drugs widely administered to different subsets of patients. Current gold standard in screening for the CDA rs2072671 is the sequence-based genotyping method. Here we developed a novel, rapid Allele-Specific PCR method for CDA rs2072671 genotyping.
Methods:
DNA was extracted from 324 healthy individuals from two different populations (Italian and Han Chinese). CDA rs2072671 genotyping was performed by Allele-Specific PCR. Sequencing was performed to validate the test results. Results obtained from population screening were compared to that already available in HapMap and in the literature.
Results:
Samples analyzed were successfully genotyped and the results were confirmed by sequencing. Genotype distribution does not differ significantly from that previously reported for each relative ethnic group. Also, the world-wide distribution of the CDA rs2072671 SNP is reported. A striking difference is present among the main ethnicities (p=1.715×10(-77)), with CDA*27Q allele showing the lowest frequency in African group (9.7%) and the highest in Caucasians (35.9%).
Conclusion:
This Allele-Specific PCR method is a useful tool in pharmacogenetics research and a valid and reliable alternative for CDA rs2072671 screening where sequencing or Real-Time PCR is not available.
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