A novel mutation of the DSRAD gene in a Chinese family with dyschromatosis symmetrica hereditaria

Genet Mol Res. 2012 Jun 29;11(2):1731-7. doi: 10.4238/2012.June.29.5.

Abstract

Dyschromatosis symmetrica hereditaria (DSH) is an autosomal dominant cutaneous disorder, characterized by a mixture of hyperpigmented and hypopigmented macules mostly on the dorsal portions of the extremities. Pathogenic mutations have been identified in the double-stranded RNA-specific adenosine deaminase (DSRAD) gene. We studied a Chinese family that included four affected individuals with DSH phenotypes. PCR and direct sequencing were carried out to detect the entire coding region and exon-intron boundaries of the DSRAD gene. A novel nucleotide c.3002G>T missense mutation in the exon 11 of the DSRAD gene was detected in the proband and his father. This information expands the database on DSRAD gene mutations associated with DSH.

MeSH terms

  • Adenosine Deaminase / genetics*
  • Amino Acid Sequence
  • Asian People
  • Base Sequence
  • Case-Control Studies
  • DNA Mutational Analysis
  • Female
  • Genetic Association Studies
  • Humans
  • Introns
  • Male
  • Mutation, Missense*
  • Pedigree
  • Pigmentation Disorders / congenital*
  • Pigmentation Disorders / enzymology
  • Pigmentation Disorders / genetics
  • RNA-Binding Proteins
  • Sequence Deletion

Substances

  • RNA-Binding Proteins
  • ADARB1 protein, human
  • Adenosine Deaminase

Supplementary concepts

  • Dyschromatosis symmetrica hereditaria 1