One Missense Mutation in the Factor X Gene Causing Factor X Deficiency—Factor X Kanazawa
Copyright policy )One Missense Mutation in the Factor X Gene Causing Factor X Deficiency—Factor X Kanazawa
We investigated the molecular basis of factor X deficiency in a Japanese patient whose factor X activity and antigen level were 45% and 50% of normal control values, respectively. All exons and intron/exon junctions of the factor X gene were studied using a strategy combining polymerase chain reaction (PCR) amplification and nonradioactive single-strand conformational polymorphism (SSCP) analysis. Exon 5, containing the DNA fragment of the proband, showed aberrant migration by SSCP analysis. All exon-containing DNA fragments amplified by PCR were sequenced, and it was revealed that the proband was a heterozygote for a G --> A substitution in exon 5 of the factor X gene of the proband. This mutation predicts an amino acid replacement of arginine (Arg) for glycine (Gly) at codon 114 in the second EGF-like domain.
- Kanazawa University Japan
- Gene Therapy Research Institution Japan
Male, Mutation, Missense, Polymerase Chain Reaction, Epistaxis, Nasal Polyps, Postoperative Complications, Amino Acid Substitution, Factor X, Humans, Codon, Factor X Deficiency, Polymorphism, Single-Stranded Conformational, Aged
Male, Mutation, Missense, Polymerase Chain Reaction, Epistaxis, Nasal Polyps, Postoperative Complications, Amino Acid Substitution, Factor X, Humans, Codon, Factor X Deficiency, Polymorphism, Single-Stranded Conformational, Aged
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