Methods We screened a family affected by long-QT syndrome type 1 and identified an autosomal dominant missense mutation (R190Q) in the KCNQ1 gene.

方法：筛选出患长qt综合征1型的家庭成员，并鉴定KCNQ1基因中一个常染色体显性遗传突变基因(R190 Q)。

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Conclusion:The family investigation suggested that the formation of cup ear was determined by the cup ear gene of an affected parent and it was an autosomal dominant inheritance.

所查杯状耳均无耳聋病史及其它部位畸形。结论：杯状耳的形成是由父母双方中一方杯状耳基因决定的，家系分析显示为常染色体显性遗传。

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Conclusion:The family investigation suggested that the formation of cup ear was determined by the cup ear gene of an affected parent and it was an autosomal dominant inheritance.

所查杯状耳均无耳聋病史及其它部位畸形。结论：杯状耳的形成是由父母双方中一方杯状耳基因决定的，家系分析显示为常染色体显性遗传。

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