ATP7B Gene Mutations in Croatian Patients with Wilson Disease

Genetic Testing and Molecular Biomarkers
Hana LjubićBoris Vucelić

Abstract

Wilson disease (WD) is an autosomal recessive disorder of copper metabolism, characterized by its accumulation in tissues which results in hepatic, neurological, and/or psychiatric symptoms. The aim of this study was to investigate the genetics of WD in Croatian patients. Correlation of the clinical presentation subtype and the age at onset of the diagnosis of WD with the ATP7B genotype was investigated in a group of Croatian WD patients. DNA from peripheral blood samples was tested for the p.His1069Gln by direct mutational analysis and other polymorphisms were identified by sequence analysis of coding and flanking intronic regions of ATP7B gene. In the group of 75 WD patients of Croatian origin, 18 different mutations in ATP7B gene were detected, three of which were novel. The p.His1069Gln mutation was most frequent, being detected in 44 Croatian WD patients (58.7%). Most ATP7B mutations (90.4%) were located in exons 5, 8, 13, 14, and 15. Clinical diagnosis of WD was confirmed in 59 patients by detecting mutations on both ATP7B alleles. The age at onset of WD and the type of WD clinical presentation showed no significant correlation with the ATP7B genotype.

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Citations

Oct 11, 2019·Biometals : an International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine·Kumaravel Ponnandai ShanmugavelPernilla Wittung-Stafshede
Jun 20, 2018·BMC Medical Genetics·Nguyen Thi Mai HuongNguyen Huy Hoang

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Methods Mentioned

BETA
electrophoresis

Software Mentioned

PolyPhen2
SPSS Statistics

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