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Updated: Jul 2, 2026

In Vivo Functional Study of Disease-associated Rare Human Variants Using Drosophila
Published on: August 20, 2019
A novel frameshift mutation of the EDA1 gene in a Chinese Han family with X-linked hypohidrotic ectodermal dysplasia
1Department of Dermatology, Institute of Dermatology, No 1 Hospital, Anhui Medical University, Hefei, China.
Abstract:
Hypohidrotic ectodermal dysplasia (HED) is a rare skin disease characterized by hypotrichosis, hypodontia and hypohidrosis. HED can be autosomal dominant, autosomal recessive or X-linked. However, X-linked HED (XLHED; OMIM 305100) is the most common form. Mutations within the EDA1 gene, which encodes ectodysplasin-A, are responsible for XLHED. In this study, we investigated the EDA1 gene in a Chinese Han family with XLHED, and found a novel 1-bp deletion mutation (c.952delG) in exon 9 of the EDA1 gene, which results in a frameshift and premature termination codon. This result suggests that the c.952delG mutation of the EDA1 gene is likely to be the disease-causing mutation for XLHED in this family. Our study adds new data to the worldwide knowledge of the molecular basis of XLHED.
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