TITLE

A novel splice-site mutation of ATP2A2 gene in a Chinese family with Darier disease

AUTHOR(S)
Jia Huo; Yan Liu; Junhong Ma; Shengxiang Xiao
PUB. DATE
December 2010
SOURCE
Archives of Dermatological Research;Dec2010, Vol. 302 Issue 10, p769
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Darier disease (DD; OMIM 124200) is a rare, autosomal dominant hereditary skin disorder characterized by abnormal keratinization and acantholysis. The causes of DD are defects in the ATP2A2 gene, which encodes the sarco/endoplasmic reticulum Ca ATPase isoform 2 (SERCA2). The aim of this study was to report a novel splice-site mutation and to examine the relative quantity expression of ATP2A2 gene in a Chinese family with DD. Polymerase chain reaction (PCR) was carried out to amplify the exons and flanking intron boundaries of the ATP2A2 gene followed by direct sequencing. A novel splice-site mutation (IVS20-6T>A) was found in the family, which was confirmed by creating a novel HinfI (NEB Inc) recognition site and RT-PCR. Real-time quantitative PCR showed approximately 53 and 52% reduction of ATP2A2 expression of the proband and his father, respectively. The results support the proposition that haploinsufficiency is a common mechanism for the dominant inheritance of DD.
ACCESSION #
54887163

 

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