基于DHPLC技术的Wilson病基因诊断

被引:1
作者
杨文明 [1 ]
汪美霞 [1 ]
杨静芳 [2 ]
鲍远程 [1 ]
李瑞娟 [3 ]
董婷 [1 ]
汪瀚 [1 ]
杨兴涛 [1 ]
陈彪 [2 ,4 ]
机构
[1] 安徽中医学院第一附属医院
[2] 首都医科大学宣武医院
[3] 安徽中医学院
[4] 国家人类基因组北京研究中心
基金
国家科技攻关计划;
关键词
高效液相色谱; Wilson病; 基因突变;
D O I
暂无
中图分类号
R742.4 [肝豆状核变性];
学科分类号
100204 [神经病学];
摘要
目的建立并应用高效液相色谱(DHPLC)技术检测Wilson病(WD)ATP7B基因第8外显子突变。方法采用聚合酶链式反应(PCR)扩增WD基因第8外显子片段,扩增产物直接进行DHPLC检测分析,根据色谱峰型不同确定测序样品,经测序后确定突变类型。结果203例先证者中WD基因外显子8基因突变阳性检出率为55.2%,Arg778Leu纯合突变22例,杂合突变90例,基因突变频率为33.0%。共发现3种错义突变、1种移码插入突变和1种多态性位点(C2310G),且多态位点C2310G与Arg778Leu突变完全连锁。其中76例先证者带有Arg778Leu杂合错义突变,22例为Arg778Leu纯合错义突变,10例为Arg778Gln杂合错义突变,2例Tyr713Silent错义突变(C2139G),2例为杂合2304C插入突变。结论WD基因外显子8是ATP7B基因的第一突变热区。DHPLC技术是一种高效、灵敏、快速简便的基因突变检测方法。可用于WD的临床基因诊断。
引用
收藏
页码:1430 / 1432
页数:3
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