Novel sequence variants of the alpha-galactosidase A gene in patients with Fabry disease

作者：Erdos Melinda; Nemeth Krisztina; Toth Beata; Constantin Tamas; Rakoczi Eva; Ponyi Andrea; Dajnoki Angela; Grubits Janos; Pinter Istvan; Garzuly Ferencz; Hahn Katalin; Bencsik Krisztina; Vecsei Laszlo; Fekete Gyoergy; Marodi Laszlo^*

来源：Molecular Genetics and Metabolism, 2008, 95(4): 224-228.

DOI：10.1016/j.ymgme.2008.09.002

• Fabry disease
• Mutation analysis
• alpha-Galactosidase A
• GLA mutation

We carried out molecular studies of 15 unrelated Hungarian families diagnosed with Fabry disease (FD). Genetic analysis of the alpha-galactosidase A gene was performed in 22 hemizygous males and 34 females. One of the female patients with severe disease phenotype showed homozygosity for the recurrent c.644A > G mutation due to parental consanguinity. The c.644A > G mutation that has previously been found mostly in patients with the cardiac variant of FD, was associated with renal but not cardiac involvement in this female and in two other family members. In nine families, eight novel sequence variants such as small deletions (c.363delT, c.477delT, c.746delAC) and single nucleotide changes (c. 107T > C, c.493G > C, c.796G > T, c.866T > G, c.871 G > A) were found in addition to six previously described private mutations, This report contributes to the identification of novel disease-causing mutations in FD, and increases our knowledge on demographics and molecular characteristics of this rare lysosomal storage disorder. This is the first comprehensive overview of molecular genetic features of Hungarian patients with FD.

• 出版日期2008-12