AP1对人CD226 PTA1启动子的调控作用
PTA1,,PTA1;,启动子;,RACE;,AP1,AP1对人CD226PTA1启动子的调控作用,1材料和方法,2结果,3讨论,【参考文献】
Regulation of PTA1 promoter by AP1JIAN JinLong, CHEN LiJie, CAO YunXin, OUYANG WeiMing, JIN BoQuan
Department of Immunology, School of Basic Medicine, Fourth Military Medical University, Xian 710033, China
【Abstract】 AIM: To identify the transcription start site of human PTA1 gene and to investigate the regulation of PTA1 promoters by AP1. METHODS: The transcription start site was cloned by 5′RACE method. The AP1 expression vector and the reporter vector containing PTA1 promoter were cotransfected into HHCC cell line. The luciferase activity of transfected HHCC was determined after 48 h culture. RESULTS: The transcription start site was located at the 229 bp upstream of ATG. AP1 upregulated PTA1 promoter P1 and P2, while the transcription factor ets1 had different regulatory effects on PTA1 promoter P1 and P2 when cotransfected with AP1. CONCLUSION: The transcription start site of PTA1 is at the 229 bp upstream of ATG and the PTA1 promoters P1 and P2 can be regulated by AP1 and ets1. ......
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