title: A Portuguese case of Fukuyama congenital muscular dystrophy caused by a multi-exonic duplication in the fukutin gene.
abstract: Fukuyama congenital muscular dystrophy (FCMD) is one of the most common autosomal recessive diseases among the Japanese population, due to a founder mutation of the fukutin gene (FKTN). Mutations in FKTN are now being described in an increasing number of non-Japanese patients. We report a Portuguese child with FCMD. The diagnosis was supported by clinical, histological, magnetic resonance imaging (MRI) and genetic studies. Genetic analysis of FKTN by Multiplex Ligation Probe Amplification (MLPA) revealed a homozygous duplication from exon 4 to exon 7. This in-frame duplication was confirmed by cDNA analysis. To our knowledge this is the first report of a FCMD case caused by an intragenic gross exonic duplication in the FKTN gene. This report widens the clinical and mutational spectrum in FCMD and corroborates the importance of screening for large deletions and duplications in CMD patients.
authors.affiliation: Unidade de Doenças Neuromusculares, Centro de Desenvolvimento da Criança Dr. Luís Borges, Hospital Pediátrico de Coimbra, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal. carmen.costa@sapo.pt
authors.forename: C
authors.initials: C
authors.lastname: Costa
authors.forename: J
authors.initials: J
authors.lastname: Oliveira
authors.forename: A
authors.initials: A
authors.lastname: Gonçalves
authors.forename: R
authors.initials: R
authors.lastname: Santos
authors.forename: E
authors.initials: E
authors.lastname: Bronze-da-Rocha
authors.forename: O
authors.initials: O
authors.lastname: Rebelo
authors.forename: R P
authors.initials: RP
authors.lastname: Pais
authors.forename: I
authors.initials: I
authors.lastname: Fineza
mesh_terms: D005091:Exons; D005260:Female; D020440:Gene Duplication; D020022:Genetic Predisposition to Disease; D006801:Humans; D007223:Infant; D008279:Magnetic Resonance Imaging / Q000379:methods; D008565:Membrane Proteins / Q000235:genetics*; D009154:Mutation / Q000235:genetics*; D010641:Phenotype; D058494:Walker-Warburg Syndrome / Q000175:diagnosis / Q000235:genetics*
chemical_list: C113587:FKTN protein, human; D008565:Membrane Proteins