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Molecular Chaperone RUVBL2 Activates Oncogenes by Modulation of Transcriptional Condensates [RNA-Seq]

ABSTRACT: Molecular Chaperone RUVBL2 Activates Oncogenes by Modulation of Transcriptional Condensates [RNA-Seq]

PROVIDER: PRJNA674032 | ENA |

REPOSITORIES: ENA

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Molecular Chaperone RUVBL2 Activates Oncogenes by Modulation of Transcriptional Condensates [ChIP-Seq]

Project description:Transcription regulators and apparatuses compartmentalize into transcriptional condensates in part through molecular interactions among intrinsically disordered regions. To better understand how these fundamental condensates are regulated, we performed time-series analyses of transcriptome, genome and imaging to show that the previously characterized molecular chaperone RUVBL2 assembles Pol II condensates by its ATPase activity and prevalently interacting with diverse oncogenic transcription factors at promoters, thereby maintaining active transcription in mammalian cells. Besides, RUVBL2 is overexpressed in various cancers, has higher expression levels and preferential chromatin binding compared with RUVBL1. Remarkably, acute protein degradation and chemical perturbations of RUVBL2 with the nucleoside compound cordycepin result in the repression of oncogenes in embryonic stem cells and breast cancer cells, respectively. Our results suggest that molecular chaperone RUVBL2 safeguards the hemostasis of transcriptional condensates at promoters. Thus, pharmacological perturbations of RUVBL2 is a promising strategy to restore these condensates in breast cancers.

2022-08-30 | GSE160738 | GEO

Molecular Chaperone RUVBL2 Activates Oncogenes by Modulation of Transcriptional Condensates [RNA-Seq]

2022-08-30 | GSE160698 | GEO

Molecular Chaperone RUVBL2 Activates Oncogenes by Modulation of Transcriptional Condensates [PRO-Seq]

2022-08-30 | GSE160696 | GEO

Molecular Chaperone RUVBL2 Activates Oncogenes by Modulation of Transcriptional Condensates [Mnase-seq]

2022-08-30 | GSE185347 | GEO

Molecular Chaperone RUVBL2 Activates Oncogenes by Modulation of Transcriptional Condensates

Project description:Molecular Chaperone RUVBL2 Activates Oncogenes by Modulation of Transcriptional Condensates

| PRJNA674324 | ENA

Molecular Chaperone RUVBL2 Activates Oncogenes by Modulation of Transcriptional Condensates [PRO-Seq]

Project description:Molecular Chaperone RUVBL2 Activates Oncogenes by Modulation of Transcriptional Condensates [PRO-Seq]

| PRJNA674031 | ENA

Molecular Chaperone RUVBL2 Activates Oncogenes by Modulation of Transcriptional Condensates [ChIP-Seq]

Project description:Molecular Chaperone RUVBL2 Activates Oncogenes by Modulation of Transcriptional Condensates [ChIP-Seq]

| PRJNA674331 | ENA

Molecular Chaperone RUVBL2 Activates Oncogenes by Modulation of Transcriptional Condensates [Mnase-seq]

Project description:Molecular Chaperone RUVBL2 Activates Oncogenes by Modulation of Transcriptional Condensates [Mnase-seq]

| PRJNA768806 | ENA

Molecular Chaperone RUVBL2 Activates Oncogenes by Modulation of Transcriptional Condensates

Project description:This SuperSeries is composed of the SubSeries listed below.

2022-08-30 | GSE160739 | GEO

Preservation of orphan ribosomal proteins during stress in chaperone-stirred condensates

Project description:Ribosome biogenesis is among the most resource-intensive cellular processes, with ribosomal proteins accounting for up to half of all newly synthesized proteins in eukaryotic cells. During stress, cells shut down ribosome biogenesis in part by halting rRNA synthesis, potentially leading to massive accumulation of aggregation-prone “orphan” ribosomal proteins (oRPs). Here we show that during heat shock in yeast and human cells, oRPs accumulate as reversible condensates at the nucleolar periphery recognized by the Hsp70 co-chaperone Sis1/DnaJB6. oRP condensates are liquid-like in cell-free lysate but solidify upon depletion of Sis1 or inhibition of Hsp70. When cells recover from heat shock, oRP condensates disperse in a Sis1-dependent manner, and their ribosomal protein constituents are incorporated into functional ribosomes in the cytosol, enabling cells to efficiently resume growth.

2023-07-27 | GSE237174 | GEO

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