带有CFP标签的LC3自噬表达载体的构建

Beijing Medical Journal(2012)

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Abstract
目的 构建带有樱桃红色荧光蛋白(cherry fluorescent protein,CFP)标签的微管相关蛋白1轻链3(LC3)自噬真核表达载体,并进行初步表达鉴定.方法 采用PCR方法,从质粒载体pCMV-GFP-LC3为模板扩增LC3片段,通过T4 DNA连接酶将纯化后的PCR产物LC3与经过ApaI和BamHI双酶切的pm-cherry-c1载体连接,命名为PM-CFP-LC3.该载体经酶切及测序验证后,在fugene6转染试剂介导下转染293细胞,通过荧光显微镜观察CFP在细胞内的分布来观察LC3表达情况.结果 带有CFP标签的LC3表达载体构建成功,在荧光显微镜下可观察到转染细胞中樱桃红色荧光以及细胞自噬现象.结论 成功构建了带有CFP标签LC3的重组质粒并成功表达,为深入研究细胞的自噬奠定了实验基础.
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Cherry fluorescent protein LC3 Autophagy Expression vector
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