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表达FLP重组酶pCEP4-FLP载体的构建及其在FLP/FRT重组系统中的应用

Construction of FLP Recombinase Expression Vector pCEP4-FLP and Its Application in FLP/FRT System
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摘要 构建重组载体pCEP4-FLP和pEF1a-FRT-stop-FRT-GFP,重组载体pEF1a-FRT-stop-FRT-GFP瞬时转染PK-15细胞24h后,再将重组载体pCEP4-FLP瞬时转染该细胞,利用荧光显微镜观察PK-15细胞GFP蛋白的表达情况,利用细胞流式技术统计绿色荧光蛋白表达效率.结果表明:重组载体pCEP4-FLP在细胞内能够表达FLP重组酶,并且表达的FLP重组酶能够识别FRT位点,删除两同向FRT位点间的DNA片段,为FLP/FRT位点特异性重组系统在转基因猪的应用奠定了基础. The recombinant vectors pCEP4-FLP and pEF1a-FRT-stop-FRT-GFP were transfected by pCEP4-FLP.The expression of EGFP were analyzed by fluorescence microscope.FACS analysis of the induction of EGFP expression.The recombinant vector pCEP4-FLP can express FLP recombinase which can recognize FRT sites and delete the DNA fra-1gment between two FRT sites in the same orientation.This system will be of great value for the applications of transgenic pigs.
出处 《河北师范大学学报(自然科学版)》 CAS 北大核心 2012年第3期291-296,共6页 Journal of Hebei Normal University:Natural Science
基金 国家973项目(2011cba01003)
关键词 FLP/FRT系统 位点特异性重组 PK-15细胞系 FLP/FRT system site-specific recombinase PK-15 cell line
作者简介 肖雪宾(1985-),男,河北保定人.硕士研究生,研究方向为生物化学与分子生物学. 通讯作者:李莉(1978-),女,中级实验师,主要从事分子生物学和细胞生物学的研究.E—mail:lilitonghappyl@163.com
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参考文献7

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