Dataset Information

Development of Unlabeled Probe Based High-Resolution Melting Analysis for Detection of Filaggrin Gene Mutation c.3321delA.

ABSTRACT:

Background

Filaggrin gene (FLG) plays an important role in skin barrier function, and loss-of-function mutations of FLG have been shown to be a predisposing factor for atopic dermatitis (AD). The c.3321delA mutation is the most common FLG mutation in Chinese population. We aim to develop a rapid, cost-efficiency, and reliable closed-tube method that has not been described for the detection of c.3321delA mutation.

Methods

Recombinant wild-type and mutant plasmids of c.3321delA mutation were constructed, heterozygous mutant plasmids were prepared by mixing the mutant plasmids and wild-type plasmids at 1:1 ratio. High-resolution melting analysis (HRMA) coupled with an unlabeled DNA probe was employed to identify the shift in melting temperature of the probe-template complex, which reflects the presence of c.3321delA mutation.

Results

Unlabeled probe based HRMA was able to distinguish all three genotypes (wild-type, heterozygote, and mutant) of c.3321delA mutation. Then, we applied this method to genotype 1,317 clinical samples. Genotyping results obtained from unlabeled probe HRMA were 100% concordant with the results from direct sequencing.

Conclusion

We developed a fast and high-throughput method to detect the c.3321delA mutation.

SUBMITTER: Zhong WL

PROVIDER: S-EPMC6806714 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature

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Publications

Development of Unlabeled Probe Based High-Resolution Melting Analysis for Detection of Filaggrin Gene Mutation c.3321delA.

Zhong Wei-Long WL Wang Luo L Wu Xia X Zhang Jie J Chen Xiao-Fan XF Zhang Wei W Dou Xia X Yu Bo B

Journal of clinical laboratory analysis 20160403 6

<h4>Background</h4>Filaggrin gene (FLG) plays an important role in skin barrier function, and loss-of-function mutations of FLG have been shown to be a predisposing factor for atopic dermatitis (AD). The c.3321delA mutation is the most common FLG mutation in Chinese population. We aim to develop a rapid, cost-efficiency, and reliable closed-tube method that has not been described for the detection of c.3321delA mutation.<h4>Methods</h4>Recombinant wild-type and mutant plasmids of c.3321delA muta ...[more]

PMID: 27040325

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Dataset Information

Development of Unlabeled Probe Based High-Resolution Melting Analysis for Detection of Filaggrin Gene Mutation c.3321delA.

Background

Methods

Results

Conclusion

Publications

Development of Unlabeled Probe Based High-Resolution Melting Analysis for Detection of Filaggrin Gene Mutation c.3321delA.

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