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Screening and cloning of the genes of protein. interacting with human augmenter of liver regeneration

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Author:: No author available

Journal Title:: WORLD CHINESE JOURNAL OF DIGESTOLOGY

Issue:: 2

DOI:: 10.3969/j.issn.1009-3079.2002.02.010

Key Word:: No keyword available

Abstract：目的:人肝再生增强因子(augmenter of liver regeneration,ALR)是一种蛋白质,组织分布比较广泛,功能多样,在肝脏再生过程起一定的作用,但是其对于再生作用的机制还不清楚,采用酵母双杂交体系寻找与ALR相互作用的肝细胞蛋白,探讨ALR的生物功能.方法:应用酵母双杂交系统3,构建ALR诱饵质粒,转化酵母AH109,与含人肝细胞cDNA文库质粒的酵母Y187进行配合,于涂有x-α-gal营养缺陷型培养基(SD/-Trp-Leu-His-Ade)上筛选生长.挑选蓝色克隆,提取此酵母克隆的质粒转化大肠杆菌提取质粒DNA后进行测序,然后进行生物信息学分析.结果:筛选出36个与ALR特异性相互作用的克隆,其中14个为金属硫蛋白,12个为人血清白蛋白,3个为硒蛋白P,1个是与GenBank中基因组数据库hgts中DNA序列(AC099651)高度同源的未知功能基因.结论:初步克隆了与ALR肝结合蛋白基因,根据所克隆到的基因,对以后研究ALR的功能有一定的提示作用;为以后研究这些能与ALR相互作用的基因在肝细胞中的生理功能奠定了基础.

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