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Mutations of KVLQT1 gene in familial long QT syndrome
Author(s): ZHANG Shouyan, YANG Junguo, KANG Cailian, LI Qiai, CHEN Zhijian, HU Jun, LI Yushu, WANG Qiufen, YING Kang
Pages: 145-
147
Year: 2002
Issue:
4
Journal: JOURNAL OF CLINICAL CARDIOLOGY
Keyword: 长QT间期综合征; KVLQT1基因; DNA突变分析;
Abstract: 目的:研究中国人先天性长QT间期综合征(LQTS)患者KVLQT1和HERG基因突变位点.方法:采用聚合酶链反应和DNA测序对11个LQTS家系KVLQT1和HERG基因跨膜编码区进行突变检测. 结果:①15例患者在国外已知的突变位点上,均未发现有突变.②发现KVLQT1基因2个新的同义突变(C636T,G912A),位置分别在KVLQT1基因的S4、Pore跨膜片段. 结论: 这2个新的同义突变可能通过影响延迟性整流钾通道的跨膜电流而与LQTS相关.
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