A new EXT2 mutation in a Chinese family with hereditary multiple exostoses / 中华医学遗传学杂志
Chinese Journal of Medical Genetics
; (6): 241-244, 2009.
Article
em Zh
| WPRIM
| ID: wpr-287416
Biblioteca responsável:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>Hereditary multiple exostoses (HME) is an autosomal dominant disorder characterized by formation of benign cartilage-capped tumors (exostoses), typically located at the juxtaepiphyseal regions of long bones. It is genetically heterogeneous with at least three chromosomal loci: EXT1 on 8q24.1, EXT2 on 11p11, and EXT3 on 19p. EXT1 and EXT2 have been cloned and are responsible for over 80% of cases. A Chinese family with HME has been analyzed in the present study.</p><p><b>METHODS</b>Linkage analysis was firstly performed to determine which of the three EXT genes could be the candidate gene, then mutation screening by PCR and direct sequencing was carried out.</p><p><b>RESULTS</b>A novel nonsense mutation (c.1006C>T) in exon 6 of EXT2, which converts the codon CAA (Gln) to the stop codon (TAA) (Gln336X), was identified. Next, prenatal diagnosis was performed and the pregnancy was determined to be normal.</p><p><b>CONCLUSION</b>A new EXT2 nonsense mutation was found in a Chinese family with hereditary multipe exostoses. The information was used for a case of prenatal diagnosis.</p>
Texto completo:
1
Base de dados:
WPRIM
Assunto principal:
Linhagem
/
Análise Mutacional de DNA
/
Família
/
Exostose Múltipla Hereditária
/
Éxons
/
N-Acetilglucosaminiltransferases
/
Códon sem Sentido
/
Povo Asiático
/
Genética
/
Mutação
Limite:
Female
/
Humans
/
Male
Idioma:
Zh
Revista:
Chinese Journal of Medical Genetics
Ano de publicação:
2009
Tipo de documento:
Article