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UBR7 an E3 ligase targets Sp110 via modulating IFN beta signalling in HBV-induced hepatic carcinoma

ABSTRACT: UBR7 an E3 ligase targets Sp110 via modulating IFN beta signalling in HBV-induced hepatic carcinoma

PROVIDER: PRJNA954035 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR24121182_1.fastq.gz	Fastqsanger.gz
	SRR24121182_2.fastq.gz	Fastqsanger.gz
	SRR24121183_1.fastq.gz	Fastqsanger.gz
	SRR24121183_2.fastq.gz	Fastqsanger.gz
	SRR24121184_1.fastq.gz	Fastqsanger.gz

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UBR7 an E3 ligase targets Sp110 via modulating IFN beta signalling in HBV-induced hepatic carcinoma

Project description:UBR7 is an E3 ubiquitin ligase. We identified that Sp110 is a novel substrate for UBR7 which promotes HBV persistence. UBR7 ubiquitinates Sp110 which leads to downregulation of type I interferon response pathway genes. Our study reports that UBR7 ubiquitinates Sp110 thereby promoting viral persistence and HBV- induced HCC.

2023-12-31 | GSE229339 | GEO

UBR7 is a novel E3 ubiquitin ligase for H2BK120 and acts as a tumor-suppressor in breast cancer [RNA-Seq]

Project description:Plant Homeo Domain (PHD) is a versatile chromatin reader/effector module which recognizes methylated, acetylated or unmodified histone substrates and regulates cellular gene expression programs. Although PHD domains shows selective epigenetic recognition of methylated, acetylated and unmodified histone substrates, there has been no previous report on its catalytic function regulating malignant transformation of cells. Here we report that PHD finger of UBR7 (Ubiquitin Protein Ligase E3 Component N-Recognin 7 (Putative)), in isolation or in context of full length protein, harbors E3 ubiquitin ligase activity towards monoubiquitination of histone H2B at lysine 120 . Knockdown of UBR7 in MCF10a and breast cancer cells decreased H2BK120ub both at the global levels and on specific genes. Conversely, overexpression of wild type, but not catalytic mutant, rescued H2BK120ub levels. Low UBR7 expression was associated with basal-like and triple negative breast cancers as well as showed poor expression in metastatic tumors. Consistently, UBR7 loss resulted in invasion properties, induced epithelial-to-mesenchymal transition and promoted metastasis. Conversely, ectopic expression of UBR7 reduced cell growth, invasion and tumor growth in mouse fat pad. Mechanistically, UBR7 reduced H2BK120ub gene body of cell-adhesion related genes as well as gene expression including on CDH4 gene. Importantly, rebuilding CDH4 levels rescued invasion phenotypes seen in UBR7-low cells. Collectively, our results establish that UBR7 PHD has novel H2B ubiquitin ligase activity and it suppresses tumor growth in basal-like breast cancers.

2019-02-08 | GSE93758 | GEO

UBR7 is a novel E3 ubiquitin ligase for H2BK120 and acts as a tumor-suppressor in breast cancer [ChIP-Seq]

2019-02-08 | GSE93757 | GEO

UBR7 is a novel E3 ubiquitin ligase for H2BK120 and acts as a tumor-suppressor in breast cancer

Project description:UBR7 is a novel E3 ubiquitin ligase for H2BK120 and acts as a tumor-suppressor in breast cancer

| PRJNA362300 | ENA

EGFR is a target of the tumor suppressor E3-ligase FBXW7

Project description:FBXW7 is and E3 ubiquitin ligase and is highly mutated in colorectal cancer. We used human colon organoids with engineered FBXW7 hotspot mutations to investigate novel targets of E3 ligase activity with a combined transcriptomic and proteomic approach uncovering the EGFR-MAPK pathway as highly regulated by the E3 ligase activity.

2024-04-03 | GSE246896 | GEO

The Hace1 E3 Ligase Modulates the Activity of Multiple Tumor Suppressive CRL E3 Ligases by binding to CAND1

Project description:The Hace1 E3 ligase is a tumor suppressor in stressed cells. Through unknown mechanisms, Hace1 indirectly targets the cyclin D1 proto-oncogene for proteasomal degradation during nutrient depletion. We now show that Hace1 targets HIF1alpha for VHL-dependent degradation during hypoxia. To better understand these diverse actions we performed mass spectrometry to identify Hace1-interacting proteins. We show that Hace1 interacts with cullin-associated NEDD8-dissociated protein 1 (CAND1) under nutrient depletion and hypoxia. CAND1 binds cullins and prevents their entry into cullin ring E3 ligase (CRL) complexes, thus blocking CRL activity. Hace1 binding releases CUL1/2 from CAND1, facilitating assembly of CRL complexes to degrade cyclin D1 and HIF1alpha, respectively. These findings suggest a broad role for Hace1 in regulating tumor suppressive CRL E3 ligases. In this study, we used gene expression profiling to characterize how Hace1 overexpression affect the transcriptional response to hypoxic stress Using Affymetrix exon-level microarrays, we compared the expression profile of HEK293 cells overexpressing either Hace1 or MSCV vector alone, under hypoxia or normoxia

2011-07-01 | E-GEOD-25452 | biostudies-arrayexpress

BRCT phosphoprotein recognition, but not E3 ligase activity, is essential for BRCA1 tumor suppression

Project description:It has been recognized that BRCA1, in the form of the BRCA1/BARD1 heterodimer, acting as an ubiquitin E3 ligase offered a possible mechanism to explain its pleiotrophic nature of BRCA1 activity. Our observation that mice lacking BRCA1 enzymatic activity are viable apart from male sterility was unexpected. Our results suggest that the E3 ligase activity of BRCA1 is largely dispensable for normal development and is not essential for all BRCA1 functions. Thus, many of the known and unknown functions of BRCA1 are likely to be mediated independent of its ability to catalyze ubiquitination. The genome copy number patterns were studied on the mice tumors that lacks E3 ubiqitin ligase activity of BRCA1 and were compared to copy number profile of mice lacking p53 and both brca1 and p53. Array CGH was performed using Agilent mouse CGH microarray 244K kit. Genomic DNA isolated from tumor tissue and its corresponding mouse tail were labelled with two different dyes and hybridized simultaneously on to microarray slides to perform comparitive genomic hybridization.

2011-08-25 | E-GEOD-31673 | biostudies-arrayexpress

The E3 SUMO ligase Mms21 controls ribosome biogenesis

Project description:The budding yeast E3 SUMO ligase Mms21, a component of the Smc5-6 complex, regulates sister chromatid cohesion, DNA replication, and DNA repair. We identify a role for Mms21 in ribosome biogenesis. The mms21RINGD mutant exhibits reduced rRNA production, nuclear accumulation of 60S and 40S ribosomal proteins, and elevated Gcn4 translation. Genes involved in ribosome biogenesis and translation are down-regulated in the mms21RINGD mutant. Examining gene expression profile of mms21RINGD mutant compared to wild-type by RNA Seq using Ilumina sequencing

2015-06-13 | E-GEOD-69826 | biostudies-arrayexpress

BRCT phosphoprotein recognition, but not E3 ligase activity, is essential for BRCA1 tumor suppression

2011-08-26 | GSE31673 | GEO

RNF12 E3 ligase activity-dependent transcriptional profile in mouse embryonic stem cells

Project description:RNF12 is a developmental E3 ligase mutated in Tonne-Kalscheuer Syndrome patients. To identify the gene expression programme controlled by RNF12 activity in mouse embryonic stem cells we employ RNA-Sequencing.

2020-04-29 | GSE149554 | GEO

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