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首页> 外文期刊>Molecular and Cellular Biology >A cloned human CCAAT-box-binding factor stimulates transcription from the human hsp70 promoter.
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A cloned human CCAAT-box-binding factor stimulates transcription from the human hsp70 promoter.

机译:克隆的人CCAAT盒结合因子刺激人hsp70启动子的转录。

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摘要

The basal promoter of the human hsp70 gene is predominantly controlled by a CCAAT element at position -70 relative to the transcriptional initiation site. We report the isolation of a novel cDNA clone encoding a 114-kDa polypeptide that binds to the CCAAT element of the hsp70 promoter. Expression of this CCAAT-binding factor (CBF) cDNA activated transcription from cotransfected hsp70 promoter-reporter gene constructs in a CCAAT-dependent manner. CCAAT-binding factor shows no homology to the previously identified human CCAAT transcription factor or rat CCAAT/enhancer-binding protein.
机译:人hsp70基因的基础启动子主要由相对于转录起始位点-70位的CCAAT元件控制。我们报告了编码与hsp70启动子的CCAAT元素结合的114 kDa多肽的新型cDNA克隆的分离。此CCAAT结合因子(CBF)cDNA的表达以CCAAT依赖性方式激活了共转染的hsp70启动子-报告基因构建体的转录。 CCAAT结合因子与先前鉴定的人CCAAT转录因子或大鼠CCAAT /增强子结合蛋白没有同源性。

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