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Seven novel mutations of the ADAR gene in Chinese families and sporadic patients with dyschromatosis symmetrica hereditaria (DSH)

✍ Scribed by Xue-Jun Zhang; Ping-Ping He; Ming Li; Chun-Di He; Kai-Lin Yan; Yong Cui; Sen Yang; Kai-Yue Zhang; Min Gao; Jian-Jun Chen; Cheng-Rang Li; Lin Jin; Hong-Duo Chen; Shi-Jie Xu; Wei Huang

Publisher: John Wiley and Sons
Year: 2004
Tongue: English
Weight: 505 KB
Volume: 23
Category: Article
ISSN: 1059-7794
DOI: 10.1002/humu.9246

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✦ Synopsis

Dyschromatosis symmetrica hereditaria (DSH) is an autosomal dominant pigmentary genodermatosis characterized by hyperpigmented and hypopigmented macules of on the extremities and caused by the mutations in the ADAR gene(also called DSRAD) encoding for RNA-specific adenosine deaminase. Here we reported clinical and molecular findings of 6 Chinese multi-generation families and 2 sporadic patients with DSH. We found that the same mutation could lead to different phenotypes even in the same family and we did not establish a clear correlation between genotypes and phenotypes. Seven novel heterozygous mutations of ADAR were identified, which were c.2433_2434delAG (p.T811fs), c.2197G>T (p.E733X), c.3286C>T (p.R1096X), c.2897G>T (p.C966F), c.2797C>T (p.Q933X), c.2375delT (p.L792fs) and c.3203-2A>G respectively. Our data add new variants to the repertoire of ADAR mutations in DSH.

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