Fourteen Italian patients affected with X-linked Alport syndrome were analyzed by Southern blotting, using cDNA probes of the COL4A5 gene. One proband was shown to carry a large deletion (greater than 38 kb) that included the 5' part of the gene.
Small frameshift deletions within the COL4A5 gene in juvenile-onset Alport syndrome
โ Scribed by Alessandra Renieri; Marco Seri; Lucia Galli; Pablo Cosci; Enrico Imbasciati; Laura Massella; Gianfranco Rizzoni; Gabriella Restagno; Angelo O. Carbonara; Emanuele Stramignoni; Bruno Basolo; Giuseppe Piccoli; Mario De Marchi
- Publisher
- Springer
- Year
- 1993
- Tongue
- English
- Weight
- 616 KB
- Volume
- 92
- Category
- Article
- ISSN
- 0340-6717
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Mutations in the COL4A5 gene, which encodes the a5 chain of type IV collagen, are found in a large fraction of patients with Xlinked Alport syndrome. The recently discovered COL4A6, tightly linked and highly homologous to COL4A5, represents a second candidate gene for Alport syndrome. We analyzed 17
## Communicated by Sesgio Otrdenghi Alport's syndrome is characterized clinically by a nonimmune glomerulopathy, often accompanied by sensorineural hearing loss and lens abnormalities, frequently due to mutations in the COL4A5 gene.
About 85% of Alport syndrome is an X-linked semi-dominant condition caused by mutations in the collagen gene, COL4A5. The large size and high GC content of this gene have presented diagnostic laboratories with problems in identifying mutations with greater than about a 50% success rate since the gen