Molecular genetic analysis of factor X deficiency: gene deletion and germline mosaicism

✍ Scribed by Kerstin Wieland; David S. Millar; Catherine B. Grundy; Reuben S. Mibashan; Vijay V. Kakkar; David N. Cooper

• Publisher: Springer
• Year: 1991
• Tongue: English
• Weight: 882 KB
• Volume: 86
• Category: Article
• ISSN: 0340-6717
• DOI: 10.1007/bf00202408

✦ Synopsis

A case of homozygous factor X deficiency arising from the inheritance of two non-identical gene deletions from heterozygous parents is described. One, a partial gene deletion, was localized to exons VII and VIII by a combination of Southern blotting and polymerase chain reaction (PCR) amplification of exon sequences. The other deletion, of maternal origin, probably involves the entire factor X gene. Restriction fragments associated with the exon VII + VIII deletion were present in three siblings including the homozygous proband. These fragments were however absent from the somatic cells of the father, a finding consistent with germline mosaicism.