神经特异性转录因子DAT1绿荧光蛋白表达载体的构建及其在C8细胞中的表达定位  

Construction of recombinant DAT1/EGFP vectors and its expression in C8 cells

作　　者：惠玲[1] 蔡文琴[2] 吕同德[1] 

机构地区：[1]兰州军区兰州总医院医学科学实验中心,甘肃兰州730050 [2]第三军医大学组织胚胎学教研室

出　　处：《西北国防医学杂志》2005年第3期164-166,F003,共4页Medical Journal of National Defending Forces in Northwest China

基　　金：国家自然科学基金青年基金资助项目(30400125)

摘　　要：目的:构建神经特异性转录因子DAT1与绿荧光蛋白融合表达的表达载体,并检测其在C8星形胶质细胞中的表达。方法:采用基因重组技术将DAT1基因和绿色荧光蛋白基因融合,构建绿荧光蛋白表达载体pEGFP-C1-DAT1,测序验证序列无误后,用脂质体法将重组质粒转入C8细胞,荧光显微镜观察DAT1的表达及定位。结果:测序验证结果表明,重组质粒含有DAT1全长编码序列,转染实验表明EGFP-DAT1能在C8细胞中正确表达,且DAT1蛋白主要定位于细胞核中。结论:DAT1全长cDNA基因绿色荧光蛋白表达载体构建成功,在C8细胞中可以正确表达,为进一步研究DAT1的功能奠定了基础。Objective:To construct the fusion gene of DAT1 with green flurescent protein(GFP),and study its expression in C8 cells. Methods: DAT1 gene was ligated into the multiple clone site of pEGFP-C1 vector by recombination technique. After confirmation with sequence analysis, the expression vector pEGFP-C1-DAT1 was transformed into C8 cells by Lipofectamin 2000. The protein expression was observed by fluorescence microscope. Results: DNA sequence analysis showed that DAT1 cDNA had been successfully inserted into pEGFP-C1 expression vector. The C8 cells transfected with pEGFP-C1-DAT1 could be detected expressing GFP-DAT1. Conclusion: The eukaryotic expression vector containing DAT1 is successfully constructed and expressed.

关 键 词：神经特异性转录因子 基因克隆 真核表达 

分 类 号：R346[医药卫生—基础医学]