title: A novel missense mutation of the CBFA1 gene in a family with cleidocranial dysplasia (CCD) and variable expressivity.
abstract: The aim of this study was to analyze the CBFA1 gene in a phenotypically variable family with autosomal dominant cleidocranial dysplasia (CCD). Five members of a family with CCD were characterized clinically. X-rays and photographs of the two clinically affected family members were taken. The genotype of all five affected family members was determined with the use of single strand conformation polymorphism (SSCP) and direct sequencing. A point-mutation in exon 2 (R148G) was detected in a patient with the full-blown clinical phenotype. His son, demonstrating the same mutation, showed only the dental CCD characteristics. No mutation could be found in the three clinically healthy family members. To conclude, a missense mutation in the CBFA1 gene was detected in a family with variably expressed CCD syndrome. A detailed clinical examination is necessary to detect minimally affected gene mutation carriers.
authors.affiliation: Department of Orthodontics, University of Regensburg, Germany. ilan.golan@klinik.uni-regensburg.de
authors.forename: I
authors.initials: I
authors.lastname: Golan
authors.forename: M
authors.initials: M
authors.lastname: Preising
authors.forename: H
authors.initials: H
authors.lastname: Wagener
authors.forename: U
authors.initials: U
authors.lastname: Baumert
authors.forename: H
authors.initials: H
authors.lastname: Niederdellmann
authors.forename: B
authors.initials: B
authors.lastname: Lorenz
authors.forename: D
authors.initials: D
authors.lastname: Müssig
mesh_terms: D000328:Adult; D002648:Child; D002973:Cleidocranial Dysplasia / Q000235:genetics*; D050659:Core Binding Factor Alpha 1 Subunit; D004252:DNA Mutational Analysis; D005091:Exons; D005192:Family Health; D005260:Female; D005838:Genotype; D006801:Humans; D008297:Male; D008953:Models, Anatomic; D008957:Models, Genetic; D009154:Mutation; D020125:Mutation, Missense; D009363:Neoplasm Proteins; D010641:Phenotype; D017354:Point Mutation; D016133:Polymerase Chain Reaction; D018807:Polymorphism, Single-Stranded Conformational; D011859:Radiography; D012886:Skull / Q000000981:diagnostic imaging / Q000473:pathology; D014070:Tooth / Q000000981:diagnostic imaging / Q000473:pathology; D014157:Transcription Factors / Q000235:genetics*; D014965:X-Rays
chemical_list: D050659:Core Binding Factor Alpha 1 Subunit; D009363:Neoplasm Proteins; D014157:Transcription Factors