A novel G21R mutation of the GJB2 gene causes autosomal dominant non-syndromic congenital deafness in a Cuban family

Deafness is a complex disorder affecting 1/1000 infants. In developed countries, more than 50% of deafness cases are thought to have a genetic cause. At least 40 loci for dominant non-syndromic deafness and another 30 for recessive non-syndromic deafness have been described. Mutations in the GJB2 ge...

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Bibliographic Details
Published in:Genetics and molecular biology 2006, Vol.29 (3), p.443-445
Main Authors: Rabionet, Raquel, Morales-Peralta, Estela, López-Bigas, Núria, Arbonés, Maria Lourdes, Estivill, Xavier
Format: Article
Language:English
Subjects:
BIOCHEMISTRY & MOLECULAR BIOLOGY
connexin 26
DFNA3
GENETICS & HEREDITY
GJB2
hearing impairment
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Summary:Deafness is a complex disorder affecting 1/1000 infants. In developed countries, more than 50% of deafness cases are thought to have a genetic cause. At least 40 loci for dominant non-syndromic deafness and another 30 for recessive non-syndromic deafness have been described. Mutations in the GJB2 gene are the cause of an important number of cases of non-syndromic recessive deafness but are not as common in non-syndromic dominant deafness cases. We describe here a new dominant mutation (G21R) in the GJB2 gene which causes deafness and has been identified in a three generation Cuban family with dominant non-syndromic congenital sensorineural profound deafness.
ISSN:1415-4757
1678-4685
1415-4757
1678-4685
DOI:10.1590/S1415-47572006000300006