ArticleBlood cells, molecules & diseases
BP1 motif in the human beta-globin promoter affects beta-globin expression during embryonic/fetal erythropoiesis in transgenic mice bearing the human beta-globin gene.
Article in Blood cells, molecules & diseases. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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0 citing papers in PubMed, 4 citations in OpenAlex.
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4 authors at 3 institutions in 1 country.
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Abstract
The binding of the transcription factor BP1 (beta protein 1) to its site on the promoter of the adult beta-globin gene has a silencing effect on beta-globin transcription in vitro. To better understand the mechanism of BP1's negative regulation of beta-globin expression, we developed transgenic mice bearing a human beta-globin locus-containing cosmid. Specifically, we introduced a mutated BP1 binding site (mtBP1) into the promoter of the beta-globin gene sequence of this cosmid construct. In the mtBP1 mice, we detected a more than a 20-fold increase in human beta-globin expression in the yolk sac-derived blood at E10.5, a 3-fold increase in fetal livers at E13.5, and an approximately 1.4-fold increase in adult reticulocytes compared with control mice bearing the human beta-globin gene with the wild-type BP1 binding site sequence (wtBP1). Our in vivo observations support the contention that the BP1 binding site of the beta-globin promoter plays an important role in the regulation of transcription of the adult beta-globin gene.
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