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Detection of three common G6PD gene mutations in Chinese individuals by probe melting curves
De-Tai Zhang1, Li-Hua Hu, Yu-Zheng Yang
1Department of Laboratory Diagnosis, Union Hospital, Tong-ji Medical College, Hua-Zhong Science and Technology University, 1277# Jiefang Dadao, Wuhan 430022, PR China. detaizhangwh@163.com
Objective:
In order to develop and validate an assay for rapid detection of three common G6PD gene mutations in Chinese individuals.
Methods:
In this report we design two sets of primers and fluorescently labeled hybridization probes recognizing adjacent sequences in the amplicon; after annealing, the fluorophores were in resonance energy transfer, providing real-time monitoring of the amplication process. At the completion of PCR, fluorescence was monitored as the temperature increased through the Tm of the probe/product duplex, and a characteristic melting profile for each mutation was obtained. By using the fluorescence method and PCR/RE, a total of 57 samples obtained from two groups of G6PD-deficient individuals were studied.
Result:
A rapid method for detection of three common G6PD gene mutations in Chinese individuals by probe melting curves was developed. This method shows 100% accordance with the traditional method.
Conclusion:
This fluorescent melting curve analysis is a simple, rapid, and effective method for clinical diagnosis and screening of G6PD deficiency.
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