A common founder mutation in the EDA-A1 gene in X-linked hypodontia.

Dermatology : International Journal for Clinical and Investigative Dermatology
M KurbanA Christiano

Abstract

X-linked recessive hypohidrotic ectodermal dysplasia (XLHED; OMIM 305100) is a rare genodermatosis characterized clinically by developmental abnormalities affecting the teeth, hair and sweat glands. Mutations in the EDA-A1 gene have been associated with XLHED. Recently, mutations in the EDA-A1 gene have also been implicated in isolated X-linked recessive hypodontia (XLRH; OMIM 313500). We analyzed the DNA from members of 3 unrelated Pakistani families with XLRH for mutations in the EDA-A1 gene through direct sequencing and performed haplotype analysis. We identified a common missense mutation in both families designated c.1091T→C (p.M364T). Haplotype analysis revealed that this is a founder mutation in the 3 families. XLHED is a syndrome with variable clinical presentations that contain a spectrum of findings, including hypodontia. We suggest that XLRH should be grouped under XLHED as both share several phenotypic and genotypic similarities.

References

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Aug 9, 2008·Journal of Human Genetics·Mahmood RasoolShahid Mahmood Baig
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Citations

Aug 28, 2019·Cellular & Molecular Biology Letters·Marzieh RahbaranSaeid Morovvati

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