c.359T>C mutation of the MYH14 gene in two autosomal dominant non-syndromic hearing impairment families with common ancestor / 中华医学遗传学杂志
Chinese Journal of Medical Genetics
;
(6): 259-262, 2010.
Article
in Chinese
| WPRIM
| ID: wpr-349001
ABSTRACT
<p><b>OBJECTIVE</b>To identify the gene mutation for two Chinese families with autosomal dominant non-syndromic hearing impairment(NSHI).</p><p><b>METHODS</b>Two NSHI pedigrees with common ancestor were identified by clinical examination and family investigation. Linkage analysis was performed for all known NSHI loci, and all exons and exon-intron boundaries of the non-muscle myosin heavy chain 14 (MYH14) gene were amplified by PCR and sequenced.</p><p><b>RESULTS</b>The disease-causing gene of these 2 pedigrees was fine mapped to the DFNA4 locus on 19q13.33. A heterozygous transition of c. 359T>C (p.S120L) in MYH14 gene was identified. The mutation was detected in all patients but not in normal members in the two families.</p><p><b>CONCLUSION</b>It is the first report that mutation in MYH14 gene can cause dominant non-syndromic hearing impairment in Asian population, suggesting that MYH14 gene can be a disease-causing gene of Chinese patients with hearing impairment.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pedigree
/
Polymerase Chain Reaction
/
Myosin Heavy Chains
/
Microsatellite Repeats
/
Myosin Type II
/
Genetics
/
Hearing Loss
/
Mutation
Limits:
Female
/
Humans
/
Male
Language:
Chinese
Journal:
Chinese Journal of Medical Genetics
Year:
2010
Type:
Article
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