Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

SUMOylation of zebrafish transcription factor Zbtb21 affects its transcription activitym [ChIP-Seq]

ABSTRACT: Phylogenetically conserved lysines 419 and 845 of zebrafish Zbtb21 protein can be conjugated with SUMO molecules. SUMOylation does not affect the subcellular localization and protein stability of Zbtb21, as well as the interaction with Zbtb14 or Zbtb21. Nevertheless, luciferase reporter assays revealed that Zbtb21 is a dual-function transcription factor which exerts activation or repression effect on different promoters, and SUMOylation can modulate the transcriptional activity of Zbtb21 in regulating downstream target genes. Hence, Zbtb21 is identified as a novel substrate of SUMOylation, which would be important for its function.

ORGANISM(S): Homo sapiens

PROVIDER: GSE254892 | GEO | 2024/04/06

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Similar Datasets

SUMOylation of zebrafish transcription factor Zbtb21 affects its transcription activity [RNA-Seq]

Project description:Phylogenetically conserved lysines 419 and 845 of zebrafish Zbtb21 protein can be conjugated with SUMO molecules. SUMOylation does not affect the subcellular localization and protein stability of Zbtb21, as well as the interaction with Zbtb14 or Zbtb21. Nevertheless, luciferase reporter assays revealed that Zbtb21 is a dual-function transcription factor which exerts activation or repression effect on different promoters, and SUMOylation can modulate the transcriptional activity of Zbtb21 in regulating downstream target genes. Hence, Zbtb21 is identified as a novel substrate of SUMOylation, which would be important for its function.

2024-04-06 | GSE255803 | GEO

Disrupting SUMOylation potentiates transactivation function and ameliorates polyglutamine AR-mediated disease

Project description:Our findings demonstrate beneficial effects of enhancing transactivation function of the ligand-activated polyQ AR and indicate that the SUMOylation pathway may provide new targets for therapeutic intervention. We mutated conserved lysines in the polyQ AR that are targeted by SUMO, a modification that inhibits AR transactivation function.

2015-12-21 | E-GEOD-60691 | biostudies-arrayexpress

SUMOylation controls the neurodevelopmental function of the transcription factor Zbtb20

Project description:SUMOylation is a dynamic post-translational protein modification that primarily takes place in cell nuclei, where it plays a key role in multiple DNA-related processes. In brain cells, and particularly in neurons, mostly nuclear proteins are SUMOylated, and the SUMOylation-dependent control of a subset of neuronal transcription factors is known to regulate various aspects of nerve cell differentiation, development, and function. In an unbiased screen for endogenous SUMOylation targets in the developing mouse brain, we previously identified the transcription factor Zbtb20 as a new SUMO1 conjugate. We show here that the three key SUMO paralogues SUMO1, SUMO2, and SUMO3 can all be conjugated to Zbtb20 in vitro, and we confirm the SUMOylation of Zbtb20 in vivo. Using primary hippocampal neurons as a model system, we then demonstrate that the expression of Zbtb20 is required for proper nerve cell development and neurite growth and branching. Furthermore, we show that the SUMOylation of Zbtb20 is essential for Zbtb20 function in this context, and provide evidence indicating that SUMOylation affects the Zbtb20-dependent transcriptional profile of neurons. Taken together, our data highlight the role of SUMOylation in the regulation of neuronal transcription factors that determine nerve cell development. Specifically, our data demonstrate that key functions of the transcription factor Zbtb20 in neuronal development and neurite growth are under the obligatory control of SUMOylation.

2021-01-06 | GSE143926 | GEO

SUMOylation on plant chromatin controls transcription switches between development and heat response [ChIP-Seq]

Project description:SUMOylation, a post-translational protein modification, is dramatically upregulated and critically involved in heat stress response conservatively among species. Previous studies in Arabidopsis indicated that numerous chromatin associated proteins are SUMOylation substrates and most of heat-enhancing SUMOylation reactions occur in nucleus. However, the global functional connection between gene expression regulation and SUMOylation on chromatin is completely unknown in plant cells. Here we show a genome-wide relationship of chromatin-associated SUMOylation and transcription switches under room temperature, heat stress, and recovering conditions in Arabidopsis. The SUMO-associated chromatin sites, characterized via whole-genome ChIP-seq assays, are generally correlated with active chromatin markers. In response to heat stress, we found chromatin-associated SUMO signals increased at promoter-transcriptional start site regions and decreased in the gene bodies. Further RNA-seq analysis supported the role of chromatin-associated SUMOylation in activation of transcription during rapid responses to high temperature. Changing of SUMO signals on chromatin is correlated with upregulation of heat-responsive genes and downregulation of growth-related genes. Disruption of the SUMO ligase gene SIZ1 abolishes SUMO signals on chromatin and attenuates the rapid transcriptional responses to heat stress. Interestingly, the SUMO signal peaks are enriched in DNA elements recognized by distinguished groups of transcription factors under different temperature conditions. Collectively, our data provide evidence that SUMOylation on chromatin regulates transcription switches during development and heat stress response, improving our understanding on the precise roles of SUMOylation in plant cells.

2020-08-04 | GSE140507 | GEO

SUMOylation on plant chromatin controls transcription switches between development and heat response [RNA-Seq]

2020-08-04 | GSE140506 | GEO

hpr1 sumoylation mutant

Project description:To gain insight into the impact of THO complex sumoylation on gene expression in yeast S. cerevisiae, total RNAs were extracted from wt and hpr1-KR cells and transcriptome profiles were analyzed by Agilent microarrays. The hpr1 K-R mutant is a version of the hpr1 THO subunit in which lysines 60-65 were simultaneously mutated, which abrogated the sumoylation of the protein.

2014-01-25 | E-MTAB-2138 | biostudies-arrayexpress

SUMOylation Regulates Super-Enhancers Through Transcription Factor TFAP2C Binding on Chromatin [RNA-seq]

Project description:Genome wide localization of SUMO1 and SUMO2/3 proteins revealed an asscociation of SUMO proetins with active chromatin. SUMO proteins are enriched at super enhancers and enhancers and SUMOylation regulates a subset of these super enhancers. Super enhancers regulated by SUMOylation were enriched for transcription factor TFAP2C and SUMOylation negatively regulates TFAP2C localization to enhancers and super enhancers. Proteomics and ChIP-PCR at MYC SE suggests that chromatin bound TFAP2C recruits histone deacetylation complexes that increases upon SAE2 knockdown. Conversely, SUMOylation promoted TFAP2C asscociation with pre-mRNA splicing machinery components. Taken together, our study revealed a critical role of SUMOylation in chromatin modification through an AP-2 family of transcription factor, TFAP2C and a potential role of TFAP2C in pre-mRNA splicing.

2024-04-13 | GSE171816 | GEO

SUMOylation Regulates Super-Enhancers Through Transcription Factor TFAP2C Binding on Chromatin [ChIP-seq]

2024-04-13 | GSE171804 | GEO

SUMOylation inhibition overcomes dexamethasone resistance in multiple myeloma

Project description:SUMOylation, a posttranslational modification, regulates proteins by covalent attachment of small ubiquitin-like modifier (SUMO) proteins to a lysine (Lys) residue on target proteins. Here we use TAK-981, a selective SUMO-activating enzyme (SAE) inhibitor, to inhibit global SUMOylation in glucocorticoid sensitive and resistant multiple myeloma cell lines.

2021-12-31 | GSE163682 | GEO

ChIP-seq analysis of androgen receptor binding in epididymis of ArKI mice

Project description:To analyze how SUMOylation of AR affects its chromatin binding, we generated a mouse model (ArKI) in which the two conserved SUMO acceptor lysines of androgen receptor (AR) were permanently abolished by converting them to arginines (ArK381R, K500R). ChIP-seq was used to analyse how the lack of AR SUMOylation affects the chromatin binding of AR in epididymis.

2019-01-09 | GSE121151 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data