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[Zn(Phen)(5-Fu)_2](NO_3)_2与牛血清白蛋白相互作用的荧光光谱
引用本文:吴都督,陈稚,刘新光,林米花,林子桐,孙耿彬.[Zn(Phen)(5-Fu)_2](NO_3)_2与牛血清白蛋白相互作用的荧光光谱[J].光谱实验室,2011,28(5):2212-2216.
作者姓名:吴都督  陈稚  刘新光  林米花  林子桐  孙耿彬
作者单位:1. 广东医学院药学院 广东省东莞市松山湖新城大道1号523808
2. 广东医学院衰老研究所 广东省东莞市松山湖新城大道1号523808
基金项目:广东省大学生创新实验项目(KY1037); 广东省卫生厅项目(B2009190)
摘    要:以Zn()为中心离子,5-氟脲嘧啶(5-Fu)和邻菲口罗啉(Phen)为配体,合成了Zn(Phen)(5-Fu)2](NO3)2配合物,并利用荧光光谱考察了该配合物与牛血清白蛋白(BSA)的相互作用。实验结果表明,配合物与BSA作用可导致BSA内源荧光猝灭,其猝灭机理为静态猝灭,结合常数Ka=1.56×106L/mol,结合位点数n=1.40,且该配合物能够猝灭BSA分子表面94.0%的色氨酸(Trp)残基,是良好的BSA猝灭剂。

关 键 词:锌(Ⅱ)配合物  牛血清白蛋白  荧光光谱

Fluorescence Spectrometry for Interaction of [Zn(Phen)(5-Fu)_2](NO_3)_2 and Bovine Serum Albumin
WU Du-Du,CHEN Zhi,LIU Xin-Guang,LIN Mi-Hua,LIN Zi-Tong,SUN Geng-Bin.Fluorescence Spectrometry for Interaction of [Zn(Phen)(5-Fu)_2](NO_3)_2 and Bovine Serum Albumin[J].Chinese Journal of Spectroscopy Laboratory,2011,28(5):2212-2216.
Authors:WU Du-Du  CHEN Zhi  LIU Xin-Guang  LIN Mi-Hua  LIN Zi-Tong  SUN Geng-Bin
Institution:WU Du-Du CHEN Zhi LIU Xin-Guanga LIN Mi-Hua LIN Zi-Tong SUN Geng-Bin(School of Pharmacy,Guangdong Medical College,Dongguan,Guangdong 523808,P.R.China)a(Institute of Aging Research,Guandong Medical College,Dongguang,P.R.China)
Abstract:A complex of Zn(Phen)(5-Fu)2](NO3)2 was synthesized using Zn(NO3)2,fluorouracil(5-Fu),1,10-phenanthrotine(Phen) as starting materials.The interaction of Zn(Phen)(5-Fu)2](NO3)2 with bovine serum albumin was studied by fluorescence spectrometry.The results showed that these interactions resulted in the endogenous fluorescence quenching of bovine serum albumin,which belonged to a static quenching mechanism.The binding constant Ka was 1.56×106L·mol-1 and the binding site n was 1.40.Moreover,the complex could quench 94.0% tryptophane(Trp) group in the bovine serum albumin surface,which would be an excellent quenching reagent in the future.
Keywords:Zinc(Ⅱ)Complex  Bovine Serum Albumin  Fluorescence Spectrometry
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