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Tri-primer-florescence PCR-Sanger sequencing method for screening of full and pre-mutations of FMR1 gene



Tri-primer-florescence PCR-Sanger sequencing method for screening of full and pre-mutations of FMR1 gene



Zhonghua Yi Xue Yi Chuan Xue Za Zhi 33(6): 844-848



To screen for CGG repeats in the FMR1 gene among patients with fragile X syndrome and carriers of pre-mutations. Potential full and pre-mutations of the FMR1 gene were detected with a Tri-primer-florescence PCR-Sanger sequencing method. The results were validated with positive and negative controls. All positive and negative controls were confirmed. A male patient was found to have > 200 CGG repeats (full mutation). For a pregnant women who was heterozygous for 35/115 CGG repeats, > 200 CGG repeats were also found with amniotic fluid sample from her fetus who was a male. The result was confirmed by following selective abortion with informed consent. Tri-primer-florescence PCR-Sanger sequencing is a simple, effective and reliable method for routine screening of patients/carriers with full/pre-mutations of the FMR1 gene in the population.

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Accession: 060427444

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PMID: 27984619


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