Isolation of genomic DNA fragments corresponding to genes modulated in vivo by a transcription factor.
[No authors listed]
摘要
A new methodology for the identification of genes modulated by transcription factors in vivo is described. Mouse genomic DNA fragments bound by the thyroid hormone receptor (T3R) were selected and amplified in vitro. Subsequent hybridisation with biotinylated cDNA allowed the selection of those DNA fragments containing binding sites for T3R that corresponded to transcribed DNA. Expression analysis of the corresponding genes showed that more than 80% are indeed modulated by thyroid hormones in vivo in the liver. Together with the presence of consensus binding sites for T3R this result suggests that the selected DNA fragments may contain T3R transcriptional regulatory elements. This method, extensive to other ligand-modulated transcription factors, might be useful to all transcription factors with slight modifications.
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基因功能
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原始数据
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文献解读
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