• Chinese medical journal · Aug 2009

    Mutation analysis of p63 gene in the first Chinese family with ADULT syndrome.

    • Xia Wang, Jian Yang, Ai-lin Tao, Wen-lin Yang, and Hong-juan Zhang.
    • Department of Dermatology, Second Affiliated Hospital of Guangzhou Medical College, Guangdong, China.
    • Chin. Med. J. 2009 Aug 20; 122 (16): 186718711867-71.

    BackgroundADULT syndrome (acro-dermato-ungual-lacrimal-tooth syndrome) is a rare ectodermal dysplasia disorder known as autosomal dominant inheritance. Recent studies have linked p63 gene mutation to the development of this disease. However, the genetic characteristics of ADULT syndrome were still not well understood.MethodsMutation analysis of p63 gene in the first Chinese ADULT syndrome family was performed using direct DNA sequencing.ResultsThe sequence analysis of exon 8 of p63 gene disclosed a heterozygous G>A substitution at nucleotide 893 (R298Q) in the proband. In addition, a single nucleotide polymorphism (SNP) rs16864880 in the downstream flanking region (DFR) of p63 exon 8 was also identified in this family. The proband and the paternal side including her father exhibited the C/G genotype at this position. The C/G variant frequency in the paternal was significantly higher as compared with the maternal (6/10 vs 0/6, P = 0.034).ConclusionsADULT syndrome may be caused by the p63 gene mutation, and it might have closer genetic association with the paternal side in this family.

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