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A novel heterozygous missense mutation (His127Arg) in a family with inherited cross-reacting material positive factor XI deficiency. 2013

Giancarlo Castaman, and Sofia H Giacomelli, and Annarita Tagliaferri, and Francesco Rodeghiero
Department of Cell Therapy and Hematology, Hemophilia and Thrombosis Center, San Bortolo Hospital, Vicenza, Italy. castaman@hemato.ven.it

Factor XI (FXI) deficiency is an autosomal inherited coagulation disorder, characterized by an inconsistent bleeding tendency, mainly associated with injury or surgery. Although most of the F11 gene mutations cause a true quantitative deficiency of FXI (cross-reacting material-negative, CRM-), very few variants characterized by a qualitative abnormality resulting in a discrepant FXI activity/FXI antigen ratio (CRM positive, CRM+) have been reported. We describe here a novel CRM+ mutation (His127Arg) identified in an asymptomatic woman from Indonesia and in her two sons.

UI MeSH Term Description Entries
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D008958 Models, Molecular Models used experimentally or theoretically to study molecular shape, electronic properties, or interactions; includes analogous molecules, computer-generated graphics, and mechanical structures. Molecular Models,Model, Molecular,Molecular Model
D005172 Factor XI Stable blood coagulation factor involved in the intrinsic pathway. The activated form XIa activates factor IX to IXa. Deficiency of factor XI is often called hemophilia C. Coagulation Factor XI,Plasma Thromboplastin Antecedent,Blood Coagulation Factor XI,Factor 11,Factor Eleven,Antecedent, Plasma Thromboplastin,Factor XI, Coagulation,Thromboplastin Antecedent, Plasma
D005173 Factor XI Deficiency A hereditary deficiency of blood coagulation factor XI (also known as plasma thromboplastin antecedent or PTA or antihemophilic factor C) resulting in a systemic blood-clotting defect called hemophilia C or Rosenthal's syndrome, that may resemble classical hemophilia. Hemophilia C,Rosenthal Syndrome,Deficiency, Factor 11,Deficiency, Factor Eleven,Deficiency, Factor XI,Factor 11 Deficiency,Factor Eleven Deficiency,Plasma Thromboplastin Antecedent Deficiency,Rosenthal's Syndrome,Deficiencies, Factor 11,Deficiencies, Factor Eleven,Deficiencies, Factor XI,Factor 11 Deficiencies,Factor Eleven Deficiencies,Factor XI Deficiencies,Rosenthal Syndromes,Rosenthal's Syndromes,Rosenthals Syndrome,Syndrome, Rosenthal,Syndrome, Rosenthal's
D005260 Female Females
D006579 Heterozygote An individual having different alleles at one or more loci regarding a specific character. Carriers, Genetic,Genetic Carriers,Carrier, Genetic,Genetic Carrier,Heterozygotes
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D020125 Mutation, Missense A mutation in which a codon is mutated to one directing the incorporation of a different amino acid. This substitution may result in an inactive or unstable product. (From A Dictionary of Genetics, King & Stansfield, 5th ed) Missense Mutation,Missense Mutations,Mutations, Missense

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