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  • Title: Identification of five novel mutations in the factor XI gene (F11) of patients with factor XI deficiency.
    Author: Quélin F, Mathonnet F, Potentini-Esnault C, Trigui N, Peynet J, Bastenaire B, Guillon L, Bigel ML, Sauger A, Mazurier C, de Mazancourt P.
    Journal: Blood Coagul Fibrinolysis; 2006 Jan; 17(1):69-73. PubMed ID: 16607084.
    Abstract:
    Factor XI (FXI) deficiency is an inherited autosomal recessive disorder associated with bleeding of variable severity. However, many cases of dominant disease transmission have been recently described. This disorder is rare in the general population, whereas it is commonly found in individuals of Ashkenazi Jewish ancestry. This study reports the molecular genetic analysis of FXI deficiencies in 11 unrelated families of different origin. Five novel mutations have been identified. Severe FXI deficiency of two unrelated patients resulted from two novel mutations: one deletion (960-961delGT) in exon 9 predicting a frameshift, and a Ser-4Leu mutation located in the signal peptide. In addition, three novel missense mutations associated with partial FXI deficiency have been identified: Cys122Tyr, Glu297Lys and Glu579Lys.
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