【摘要】 目的 :建立可稳定表达人类p10 0蛋白的细胞株 ,研究细胞内p10 0蛋白参与STAT6介导的基因转录调控的机制。方法 :利用免疫共沉淀法检测蛋白与蛋白间结合 ,荧光素酶法测定STAT6基因转录活性。结果 :p10 0既可与STAT6结合 ,亦可与RNA多聚酶Ⅱ结合 ,并能增强STAT6介导的基因转录活性。结论 :p10 0蛋白是STAT6共激活因子 ,可桥连STAT6和基本转录调控元件 ,促进STAT6介导的基因转录活性。更多还原

【Abstract】 Objective:To setup a stable cell line which can overexpress human p100 protein,and then st udy the physiologic functions of p100 in regulation of STAT6-mediated gene tran scription.Methods:Using coimmunoprecipitation method to identify protein-protein interactions.STA T6-mediated gene transcriptional activation was detected by luciferase assay.Results:Human p100 protein interacted with both STAT6 and RNA polymerase Ⅱ,resulting in the enhancement of STAT6-mediated gene transcriptional activation.Conclusion:Human p100 protein acts as a bridging factor between STAT6 and basal transcripti onal machenary. [更多还原