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The subunit dissocaition and recombination for constructing the nanometer particles of peptide form the ferritin

Abstract

本文根据铁蛋白的耐热性特点,采用热变性法、离子交换柱层析技术(DEAE-52)和聚丙烯酰胺梯度凝胶电泳(PAGE)技术,从鲨鱼(Sphyrnazygaena)肝脏中分离纯化电泳纯鲨鱼肝铁蛋白(LiverferritinofSphyrnazygaena,SZLF),并结合PAGE与超滤分离技术,制备质谱纯的SZLF,供组成与结构分析。SZLF由单类型亚基组成,分子量约为20kDa。在采用SDS-PAGE、高效液相色谱(HighPerformanceLiquidChromatography,HPLC)分离与纯化SZLF过程中,发现一段分子量约为14kDa的肽片段,其分子量小于SZLF亚基。采用酶切...According to the characteristics of protein resisting-heat, we used thermal denaturation method, separation approach with column anion exchange chromatography with filled DEAE-cellulose 52 and native PAGE to separate and purify Liver ferritin of Sphyrna zygaena (SZLF). A combine off-line technology both PAGE and gradient gel filtration chromatography was employed to prepare the ferritin with the l...学位:理学硕士院系专业:生命科学学院生物化学与生物技术系_生物化学与分子生物学学号:20032608

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