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应用变性高效液相色谱检测马凡综合征原纤维蛋白1突变 被引量:1

Application of DHPLC for mutation detection of the fibrillin-1 in patients with Marfan syndrome
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摘要 目的应用变性高效液相色谱(DHPLC)结合DNA测序法检测分析马凡综合征(MFS)原纤维蛋白1(fibrillin-1)基因(FBN1)突变状况。方法提取22例MFS患者全血DNA,PCR增扩FBN1的65个外显子,用DHPLC筛查DNA突变,对DHPLC图形异常的PCR产物用DNA测序分析突变分布。结果在9例MFS患者FBN1中发现10种突变。其中有4种错义突变[5015G〉C(C1672S)、5309G〉A(C1770Y)、7241G〉A(A2414G)与7769G〉A(C2590Y)],4种无义突变[3295G〉T(E1099X)、4307insTCGT(G1441X)、4621C〉T(R1541X)与8080C〉T(A2694X)],2种剪切位点突变(IVS29+4A〉T与IVS50+1G〉A)。结论DHPLC结合DNA测序法是一种快速有效的FBN1突变检测法,可用于MFS的基因诊断。 Objective To detect fibrillin-1 gene (FBN1) mutations in patients with Marfan syndrome (MFS) by denaturing high-performance liquid chromatography (DHPLC) and DNA sequencing. Methods Genomie DNA was extracted from whole blood sample of 22 MFS patients. All 65 exons of FBN1 were amplified by polymerase chain reaction(PCR) respectively. Mutations were screened by DHPLC followed by DNA sequencing of the PCR products which showed different DHPLC profiles from the normals. Results Ten mutations of the FBN1 were found in 9 MFS patients. The mutations comprised four missense[ 5015G 〉 C(C1672S) ,5309G 〉 A(C1770Y) ,7241G 〉 A(A2414G) and 7769G 〉 A(C2590Y) ], four nonsense [ 3295G 〉 T ( E1099X), 4307insTCGT ( G1441X), 4621C 〉 T (R1541X) and 8080C 〉 T (A2694X) ], and two splice site mutations ( IVS29 + 4A 〉 T and IVS50 + 1G 〉 A). Conclusion It is suggested that DHPLC coupled with DNA sequencing is an efficient method for the detection of FBN1 gene mutations, and it may be useful in diagnosis of MFS.
出处 《中华检验医学杂志》 CAS CSCD 北大核心 2009年第5期531-534,共4页 Chinese Journal of Laboratory Medicine
基金 福建省自然科学基金资助项目(C0810004)
关键词 马凡综合征 原纤维蛋白-1 基因突变 变性高效液相色谱分析 Marfan syndrome Fibrillin-1 Ggene mutation Denaturing high-performance liquid chromatography
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共引文献6

同被引文献6

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