Moreover, the locus for human alpha-galactosidase, which was found to be X-linked, is the locus coding for alpha-galactosidase A. Hybrids isolated after fusion of Chinese hamster cells with cells of a patient with Fabry's disease did not express human alpha-galactosidase A or the heteropolymeric molecule even in the presence of the active human X chromosome, indicating that the deficiency of alpha-galactosidase A in Fabry's disease is probably due to a mutation in a structural gene resulting in the inability to form immunologically detectable and functionally active molecules of alpha-galactosidase A.
To investigate the structure, organization, and expression of alpha-Gal A, as well as the nature of mutations in Fabry disease, a clone encoding human alpha-Gal A was isolated from a lambda gt11 human liver cDNA expression library.
For comparison, the processing and stability of alpha-galactosidase A were examined in fibroblasts from five unrelated patients with Fabry disease, which is caused by deficient alpha-galactosidase A activity.
Six alpha-galactosidase A gene rearrangements that cause Fabry disease were investigated to assess the role of Alu repetitive elements and short direct and/or inverted repeats in the generation of these germinal mutations.
Polymerase chain reaction amplification of reverse-transcribed messenger RNA from a patient with Fabry disease revealed a 13-base pair deletion in the 5' region (exon 1) of alpha-galactosidase A complementary DNA.
We conclude, on the basis of the results recorded in this study and those in previous reports, that the pathogenesis of atypical Fabry disease is closely associated with point mutations in the upstream region of exon 6 of the alpha-galactosidase A gene.
The alpha-galactosidase A gene (GALA), which is deficient in males with Anderson-Fabry disease, is shown to be remarkably polymorphic in the 5' untranslated region.GALA contains seven exons.
These studies revealed that most mutations in the alpha-galactosidase A gene causing Fabry disease were private, that codons 111-122 defined a deletion hot-spot, and that different substitutions of the same codon resulted in markedly different disease phenotypes.
Uneven X inactivation in a female monozygotic twin pair with Fabry disease and discordant expression of a novel mutation in the alpha-galactosidase A gene.
Correction in trans for Fabry disease: expression, secretion and uptake of alpha-galactosidase A in patient-derived cells driven by a high-titer recombinant retroviral vector.
We describe the molecular characterization of a novel, in-frame deletion that is located in exon 7 of the alpha-galactosidase A gene in a patient with Fabry's disease.
We identified a novel mutation of alpha-Gal A gene in a family with Fabry disease, which converted a tyrosine at codon 365 to a stop and resulted in a truncation of the carboxy (C) terminus by 65 amino acid (AA) residues.