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Deciphering the role of RNA in regulating CTCF’s DNA binding affinity in leukemia cells [ATAC-seq]

ABSTRACT: Deciphering the role of RNA in regulating CTCF’s DNA binding affinity in leukemia cells [ATAC-seq]

PROVIDER: PRJNA1085695 | ENA |

REPOSITORIES: ENA

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Deciphering the role of RNA in regulating CTCF’s DNA binding affinity in leukemia cells [CTCF-ChIP]

Project description:CTCF, a highly studied transcription factor, is essential for chromatin interaction maintenance. Several independent studies have reported that CTCF interacts with RNAs in vitro and in cells. Yet continuous debates about the authenticity of the RNA-binding affinity of CTCF and its biological role remain in large part due to limited research techniques available, such as CLIP-seq. Here, we investigated the role RNA plays on CTCF’s transcription factor function through its chromatin occupancy. To systematically investigate whether RNAs affect CTCF’s ability to bind DNA, we perturbed CTCF-RNA interactions by three independent approaches and examined CTCF genome occupancy by ChIP-seq. Although RnaseA A and Triptolide treatment each affected a certain number of CTCF-binding peaks, few peaks overlapped between treatment groups indicating the effect of RNA in regulating CTCF’s DNA binding affinity was modest and variable between loci. In addition, limited transcriptional or chromatin accessibility changes were observed between cells expressing wild-type CTCF or CTCF lacking the RNA binding region. Our data provide a complementary approach and in silico evidence to reconsider the significance of RNA affecting CTCF’s DNA-binding affinity in a global manner.

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Deciphering the role of RNA in regulating CTCF’s DNA binding affinity in leukemia cells [RNA-Seq.New]

Project description:CTCF, a highly studied transcription factor, is essential for chromatin interaction maintenance. Several independent studies have reported that CTCF interacts with RNAs in vitro and in cells. Yet continuous debates about the authenticity of the RNA-binding affinity of CTCF and its biological role remain in large part due to limited research techniques available, such as CLIP-seq. Here, we investigated the role RNA plays on CTCF’s transcription factor function through its chromatin occupancy. To systematically investigate whether RNAs affect CTCF’s ability to bind DNA, we perturbed CTCF-RNA interactions by three independent approaches and examined CTCF genome occupancy by ChIP-seq. Although RNase A and Triptolide treatment each affected a certain number of CTCF-binding peaks, few peaks overlapped between treatment groups indicating the effect of RNA in regulating CTCF’s DNA binding affinity was modest and variable between loci. In addition, limited transcriptional or chromatin accessibility changes were observed between cells expressing wild-type CTCF or CTCF lacking the RNA binding region. Our data provide a complementary approach and in silico evidence to reconsider the significance of RNA affecting CTCF’s DNA-binding affinity in a global manner.

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Deciphering the role of RNA in regulating CTCF’s DNA binding affinity in leukemia cells

Project description:Deciphering the role of RNA in regulating CTCF’s DNA binding affinity in leukemia cells

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Deciphering the role of RNA in regulating CTCF’s DNA binding affinity in leukemia cells [RNA-Seq.New]

Project description:Deciphering the role of RNA in regulating CTCF’s DNA binding affinity in leukemia cells [RNA-Seq.New]

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Deciphering the role of RNA in regulating CTCF’s DNA binding affinity in leukemia cells [CTCF-ChIP]

Project description:Deciphering the role of RNA in regulating CTCF’s DNA binding affinity in leukemia cells [CTCF-ChIP]

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Deciphering the role of RNA in regulating CTCF’s DNA binding affinity in leukemia cells [CTCF-HA-ChIP]

Project description:Deciphering the role of RNA in regulating CTCF’s DNA binding affinity in leukemia cells [CTCF-HA-ChIP]

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Deciphering the role of RNA in regulating CTCF’s DNA binding affinity in leukemia cells [ATAC-seq]

Project description:CTCF is the most studied transcription factor, which is essential for chromatin interaction maintenance. Although several independent studies reported that CTCF protein could pull down RNAs in vitro and in cells, there are continuous debates about authenticity of the RNA-binding affinity of CTCF and its biological role, mainly due to the concerns of limited research techniques such as CLIP-seq. To systematically investigate the RNA-interaction with CTCF and the impact on gene regulation, we conducted in vivo CTCF ChIP-seq under three conditions, including RNase A treatment, Triptolide-mediated transcription inhibition and auxin-inducible degron mediated RNA-binding domain mutant swap. Our results consistently suggest that when RNA-interaction with CTCF protein was impaired in vivo, the DNA occupancy of CTCF remains the same at the genome-wide scale. Our data provide a complementary approach and in silico evidence to re-considerate the role of RNA-binding affinity of CTCF.

2025-03-26 | GSE261179 | GEO

Deciphering the role of RNA in regulating CTCF’s DNA binding affinity in leukemia cells [CTCF-HA-ChIP]

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Deciphering the role of RNA in regulating CTCF’s DNA binding affinity in leukemia cells

Project description:RNA-seq could be found under GSE205311(sample names with DeltaRBR). HA-tagged CTCF-ChIP-seq for dRBR could be found under GSE205408(sample names with Delta_RBR). This SuperSeries is composed of the SubSeries listed below.

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