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The human beta-globin gene contains multiple regulatory regions: identification of one promoter and two downstream enhancers.

机译:人β-珠蛋白基因包含多个调控区:鉴定一个启动子和两个下游增强子。

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摘要

We have introduced into murine erythroleukaemia (MEL) cells several series of deletion mutants of hybrid genes between the human beta-globin gene and the murine H-2Kb gene. S1 nuclease and transcriptional run-off analysis showed that the human beta-globin gene contains at least three globin specific transcriptional control elements. One is a promoter element and is located 160 bp upstream from the transcription initiation site; it increases the efficiency of the promoter after MEL cells are induced to differentiate. The other two elements are tissue-specific transcriptional enhancers and are located downstream from the transcription initiation site, the first in the structural beta-globin gene and the second in the 3' flanking sequences.
机译:我们已经将鼠β-珠蛋白基因和鼠H-2Kb基因之间的杂种基因的几个系列缺失突变体引入鼠类红细胞白血病(MEL)细胞。 S1核酸酶和转录径流分析表明,人β-珠蛋白基因包含至少三个球蛋白特异性转录控制元件。一个是启动子元件,位于转录起始位点上游160 bp。它在诱导MEL细胞分化后提高了启动子的效率。其他两个元素是组织特异性转录增强子,位于转录起始位点的下游,第一个位于结构β珠蛋白基因中,第二个位于3'侧翼序列中。

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