OALib Journal期刊
ISSN: 2333-9721
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脱氧核糖核酸-蛋白质相互作用产物的检测及其在胃癌组织中的应用
, PP. 1817-1822
Keywords: 脱氧核糖核酸,蛋白质,相互作用,无胶筛分毛细管电泳,激光诱导荧光检测,聚环氧乙烷,胃癌组织
Abstract:
建立了无胶筛分毛细管电泳-激光诱导荧光(Non-gelsievingcapillaryelectrophoresiswithlaserinducedfluorescence,NGS-CE-LIF)检测脱氧核糖核酸(DNA)-蛋白质相互作用产物的方法。考察了筛分介质聚环氧乙烷(Poly(ethyleneoxide),PEO)浓度、分离温度、分离电压及缓冲液三羟甲基氨基甲烷硼酸(Tris-Borate-ED-TA,TBE)pH值等条件对pUC19DNA/MspⅠ(HpaⅡ)DNAMarker和ProteinMolecularWeightMarker(Broad)D532S相互作用产物的影响。结果表明,当PEO浓度为0.1%,TBE的pH为9.0,分离电压为15kV,分离柱温15℃时,DNA-蛋白质相互作用产物得到有效分离。本方法应用于人胃癌组织p53基因扩增后的PCR产物和从相应组织中提取的蛋白质二者相互作用产物时,检测效率高,分离效果好。
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