Sequence Variations and Haplotypes of the GJB2 Gene Revealed by Resequencing of 192 Chromosomes from the General Population in Korea
Clinical and Experimental Otorhinolaryngology
;
: 65-69, 2010.
Article
Dans Anglais
| WPRIM
| ID: wpr-205389
ABSTRACT
OBJECTIVES:
Hearing impairment (HI) is the most common sensory deficit in human. The Gap Junction Protein, Beta-2 (GJB2) gene encodes the protein connexin 26, and this gene accounts for up to half of the cases of autosomal recessive nonsyndromic HI. This study was conducted to obtain a set of sequence variations (SVs) of the GJB2 gene among Koreans from the general population for making molecular genetic diagnoses and performing genetic counseling.METHODS:
We resequenced the GJB2 gene in 192 chromosomes from 96 adult individuals of Korean descent and who were without a history of hearing difficulty. The data of the SVs was obtained and the haplotypes were reconstructed from the data.RESULTS:
Five SVs were observed, including a novel one (c.558G>A; p.T186T), with the allele frequencies ranging from 0.5% (1/192) to 41% (79/192). The linkage disequilibrium study and haplotype construction showed that some of the SVs are in tight linkage, resulting in a limited number of haplotypes.CONCLUSION:
We observed SVs of the GJB2 gene with different allele frequencies, and a limited number of haplotypes were constructed. The data from this study can be used as reference data for GJB2-related hearing genetic studies, including studies on the founder effect and population genetics, and this data is particularly relevant to people of East Asian decent.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Haplotypes
/
Déséquilibre de liaison
/
Connexines
/
Effet fondateur
/
Asiatiques
/
Fréquence d'allèle
/
Conseil génétique
/
Génétique des populations
/
Ouïe
/
Perte d'audition
Limites du sujet:
Adulte
/
Humains
Pays comme sujet:
Asie
langue:
Anglais
Texte intégral:
Clinical and Experimental Otorhinolaryngology
Année:
2010
Type:
Article
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