Identification of an inframe deletion and a missense mutation in the factor XIIIA gene in two Turkish patients.

Autor: Birben, Esra, Öner, Cihan, Öner, Reyhan, Altay, Çigˇdem, Gürgey, Aytemiz
Předmět:
Zdroj: European Journal of Haematology; Jul2003, Vol. 71 Issue 1, p39-43, 5p
Abstrakt: Abstract: We report two novel mutations in factor XIIIA (FXIIIA) gene that caused congenital factor XIII deficiency in two unrelated patients. The first alteration, a missense mutation Leu235Arg in exon 6 of FXIIIA gene, is located in the putative calcium-binding part of the core domain of the enzyme. Replacement of non-polar hydrophobic leucine residue with positively charged arginine residue is likely to effect protein folding thus destabilizing the molecule. The second mutation is a 3-bp deletion in exon 14 of FXIIIA gene. This deletion is located in beta barrel 2 domain of the protein and results in translation of an aberrant FXIIIA molecule that lacks lysine residue either at positions 677 or 678. As this inframe deletion is located in a direct repetetive sequence of AAGAAG, that codes for two lysine residues, the exact location of deletion could not be detected. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index