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Title: Transcription factor trapping by RNA in gene regulatory elements (RNA-Seq)      
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available
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instance of dataset
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not applicable
refinement:
curated
dateReleased:
12-08-2015
ID:
E-GEOD-73859
description:
Transcription factors (TFs) bind specific sequences in promoter-proximal and distal DNA elements in order to regulate gene transcription. RNA is transcribed from both promoter-proximal and distal DNA elements, and some DNA-binding TFs have also been shown to bind RNA. These obsevations led us to postulate that RNA transcribed from regulatory elements contributes to stable TF occupancy at these regulatory elements. We show here that the ubiquitously expressed TF YY1 binds to both proximal and distal regulatory elements and to the RNA species associated with these elements near active genes in embryonic stem cells. Inhibition of transcription from these elements reduces YY1 occupancy. In contrast, tethering of RNA species near YY1 DNA binding sites enhances YY1 occupancy. We propose that RNA acts as trap to maintain certain TFs at active enhancer and promoter-proximal regulatory elements. Thus, transcriptional control generally involves a positive feedback loop, where YY1 and other TFs stimulate local transcription, and newly transcribed nascent RNA reinforces local TF occupancy. This model helps explain why TFs occupy only the small fraction of their consensus motifs in the mammalian genome where transcription is detected. RNA-Seq in mouse embryonic stem cells before and after knockdown of exosome protein
keywords:
RNA-seq of coding RNA
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storedIn:
Array Express
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accessURL: https://www.ebi.ac.uk/arrayexpress/experiments/E-GEOD-73859
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JSON
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OmicsDI
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accessType:
download
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accessURL: www.omicsdi.org/ws/dataset/arrayexpress-repository/E-GEOD-73859.json
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XML
storedIn:
OmicsDI
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not compressed
accessType:
download
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none
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accessURL: http://www.omicsdi.org/ws/dataset/arrayexpress-repository/E-GEOD-73859.xml
ID:
SCR:014747
name:
Omics Discovery Index
abbreviation:
OmicsDI
homePage: http://www.omicsdi.org/