The WDR5 WIN site interactome
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA631994 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:The WIN site of WDR5 is a druggable pocket that is crucial for WDR5 protein function and carries therapeutic potential for treating cancer. This study evaluates the protein interactions affected by small molecule blockade of the WIN site of WDR5. We find that PDPK1 directly binds the WIN site of WDR5, and we investigate this newfound interaction through proteomic, biochemical, and genomic methods.
2021-01-19 | GSE150400 | GEO
Project description:This study demonstrates the impact of WIN site inhibitors versus WDR5 degradation on H3K4me and transcriptional processes in human Burkitt's lymphoma cells. We use RNA-seq to measure global transcript levels, ChIP-seq to map genomic H3K4me3, and PRO-seq to map genomic polymerase density and primary transcripts. Our data show that WIN site inhibition disables only a specific subset of WDR5 activity, and that H3K4me changes induced by WDR5 depletion do not explain accompanying transcriptional responses.
2022-02-03 | GSE183781 | GEO
Project description:The WIN site of WDR5 is a druggable pocket that impairs WDR5 protein function and carries therapeutic potential for treating cancer. This study evaluates the protein interactions affected by small molecule blockade of this surface on WDR5. Inhibited and uninhibited WDR5-containing complexes from HEK293 cells were quantitatively compared by SILAC-based proteomics. Of the high confidence proteins affected by this inhibition, one protein, PDPK1, was investigated further by mass spectrometry for identification of post translational modifications that could influence binding to WDR5.
2021-01-25 | PXD019209 | Pride
Project description:WDR5 is a highly-conserved nuclear protein that performs multiple scaffolding functions in the context of chromatin. WDR5 is also a promising target for pharmacological inhibition in cancer, with small molecule inhibitors of an arginine-binding pocket of WDR5 (the "WIN" site) showing efficacy against a range of cancer cell lines in vitro. Efforts to understand WDR5, or establish the mechanism of action of WIN site inhibitors, however, are stymied by its many functions in the nucleus, and a lack of knowledge of the conserved gene networks—if any—that are under its control. Here, we have performed comparative genomic analyses to identify the conserved sites of WDR5 binding to chromatin, and the conserved genes regulated by WDR5, across a diverse panel of cancer cell lines. We show that a specific cohort of protein synthesis genes (PSGs) are invariantly bound by WDR5, demonstrate that the WIN site anchors WDR5 to chromatin at these sites, and establish that PSGs are both acute and persistent targets of WIN site blockade. Together, these data reveal that WDR5 plays a predominant transcriptional role in biomass accumulation and reinforce the notion that WIN site inhibitors kill sensitive cancer cells by disrupting protein synthesis homeostasis.
2020-01-17 | GSE136451 | GEO
Project description:Rhabdoid tumors (RT) are rare and aggressive pediatric tumors that are driven by the loss the tumor suppressor SNF5 (SMARCB1). Here we examine how RT cells respond to small molecule-mediated inhibitors of the “WIN” site of WDR5, a chromatin-associated protein that regulates a specific set of genes linked to protein synthesis. We characterize WDR5 binding in RT cell lines via ChIP-Seq and show that WIN site inhibitor rapidly and comprehensively displaces WDR5 from chromatin in these cells. Using Precision Run On-sequencing (PRO-Seq) we show that WDR5-bound protein synthesis genes are early and direct transcriptional targets of WIN site inhibitor. We also use RNA-Seq to characterize the persistent transcriptional changes in RT lines treated with WIN site inhibitor, and compare these transcriptional effects with those of the HDM2 inhibitor nutlin-3a.
2022-03-03 | GSE173207 | GEO
Project description:Rhabdoid tumors (RT) are rare and aggressive pediatric tumors that are driven by the loss the tumor suppressor SNF5 (SMARCB1). Here we examine how RT cells respond to small molecule-mediated inhibitors of the “WIN” site of WDR5, a chromatin-associated protein that regulates a specific set of genes linked to protein synthesis. We characterize WDR5 binding in RT cell lines via ChIP-Seq and show that WIN site inhibitor rapidly and comprehensively displaces WDR5 from chromatin in these cells. Using Precision Run On-sequencing (PRO-Seq) we show that WDR5-bound protein synthesis genes are early and direct transcriptional targets of WIN site inhibitor. We also use RNA-Seq to characterize the persistent transcriptional changes in RT lines treated with WIN site inhibitor, and compare these transcriptional effects with those of the HDM2 inhibitor nutlin-3a.
2022-03-03 | GSE189205 | GEO
Project description:We discovered potent small molecule inhibitors against the WIN site of WDR5. These inhibitors selectively block the proliferation of mammalian cells carrying fusions of the MLL1 oncogene. Here, we show that these inhibitors result in the rapid displacement of WDR5 from chromatin in both sensitive (MV4:11) and non-sensitive (K562) cell lines, induce early changes in the distribution of active polymerases at a subset of WDR5-bound genes, and induce global transcript changes that are consistent with induction of the tumor suppressor p53.
2019-03-12 | GSE115377 | GEO
Project description:WIN site inhibition disrupts a subset of WDR5 function
| PRJNA761980 | ENA
Project description:WIN Site inhibitors bind the WIN Site of WDR5 resulting in decreased transcription of WDR5 target genes, many of which encode components of the protein synthesis machinery. In this study, we determined proteome alterations in an MLL-rearranged leukemia cell line treated for either 24 or 72 hours with a WIN Site inhibitor. The data from these studies, along with Ribo-Seq, RNA-Seq, and CRISPR screen experiments, guided us in assembling a collection of compounds that, when combined with WIN Site inhibitor, synergistically inhibit growth of MLL-rearranged leukemia cells.
2023-07-04 | PXD035129 | Pride
Project description:In this study, we utilized a multi-omics approach to determine the transcriptional, translational, and proteomic responses to WIN Site inhibition in MLL-rearranged leukemia cells via RNA-Seq, Ribo-Seq, and quantitative proteomics, respectively. We also performed both a whole-genome targeting primary CRISPR screen and a secondary CRISPR screen targeting a currated collection of genes to determine genes important for sensitivity to WIN Site inhibition. These combined data sets rationally guided us in assembling a collection of compounds that, when combined with WIN Site inhibitor, synergistically inhibit growth of MLL-rearranged leukemia cells.
2023-07-03 | GSE206931 | GEO