Identification of GLA gene deletions in Fabry patients by Multiplex Ligation-dependent Probe Amplification (MLPA)

Mol Genet Metab. 2008 Jul;94(3):382-5. doi: 10.1016/j.ymgme.2008.03.017. Epub 2008 May 9.

Abstract

Fabry disease is an under-recognized X-linked lysosomal disorder, due to alpha-galactosidase A deficiency. Most of the mutations in the GLA gene are detectable using genomic sequencing analysis. However, deletions of one or more exons or deletion encompassing the entire gene are undetectable, especially in heterozygous females. The Multiplex Ligation-dependent Probe Amplification (MLPA) is an efficient tool for discovering these rearrangements. In this study two novel different deletions were detected using MLPA assay on two Fabry patients, both resulted mutation negative by sequencing analysis. These data suggest that this screening should be systematically included in genetic testing surveys of patients with Fabry disease.

MeSH terms

  • Adult
  • DNA Mutational Analysis / methods*
  • Fabry Disease / genetics*
  • Female
  • Gene Deletion*
  • Genetic Carrier Screening
  • Genetic Testing
  • Humans
  • Male
  • Middle Aged
  • Nucleic Acid Amplification Techniques / methods
  • alpha-Galactosidase / genetics*

Substances

  • alpha-Galactosidase