Related Experiment Videos
Heterozygous factor XI deficiency associated with three novel mutations
M Mitchell1, J Cutler, S Thompson
1The Haemophilia Centre, St Thomas' Hospital, London.
British Journal of Haematology
|December 22, 1999
Summary
Single-stranded conformation polymorphism (SSCP) analysis effectively screens for factor XI (fXI) gene mutations. Genotypic analysis accurately distinguishes heterozygous factor XI deficiency from normal subjects.
Area of Science:
- Genetics
- Molecular Biology
- Hematology
Background:
- Factor XI (fXI) deficiency is a rare bleeding disorder.
- Genetic mutations are a primary cause of fXI deficiency.
- Accurate genetic screening is crucial for diagnosis.
Purpose of the Study:
- To evaluate the utility of single-stranded conformation polymorphism (SSCP) analysis for screening mutations in the fXI gene.
- To identify novel mutations in patients with heterozygous factor XI deficiency.
Main Methods:
- Investigated three patients with heterozygous factor XI deficiency.
- Employed DNA sequence analysis to confirm mutations.
- Utilized single-stranded conformation polymorphism (SSCP) analysis for mutation screening.
Main Results:
- Confirmed three novel heterozygous mutations in the fXI gene: Arg308Cys (exon 9), Ala412Val (exon 11), and Ser576Arg (exon 15).
- Postulated structural implications of these missense mutations.
- Demonstrated the effectiveness of genotypic analysis in differentiating deficiency from normal subjects.
Conclusions:
- Single-stranded conformation polymorphism (SSCP) analysis is a valuable tool for screening fXI gene mutations.
- Genotypic analysis provides conclusive differentiation for heterozygous factor XI deficiency.
- Identification of novel mutations contributes to understanding fXI deficiency pathogenesis.