Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Knockdown of Tis7 in mouse erythroblasts

ABSTRACT: DNA-binding factor Tis7 (Ifrd1) shows increased ribosome recruitment during eIF2 phosphorylation during proteotoxic stress in erythroblasts. Here, we examine the effect of Tis7 knockdown on RNA expression at different time points after tunicamycin exposure.

ORGANISM(S): Mus musculus

PROVIDER: GSE109434 | GEO | 2019/01/01

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Similar Datasets

Ribosome profiling uncovers selective mRNA translation associated with eIF2 phosphorylation in erythroid progenitors

Project description:The aim of this study is to investigate how eIF2 phosphorylation affects mRNA translation in erythroblasts. Ribosome profiling combined with RNA sequencing was used to determine translation initiation sites and ribosome density on individual transcripts.

2019-02-01 | GSE110618 | GEO

Ribosome profiling data obtained from HEK293T cells 30 minutes after treatment with arsenite to a final concentration of 40 M-BM-5M

Project description:Eukaryotic cells rapidly reduce protein synthesis in response to various stress conditions. This can be achieved by the phosphorylation-mediated inactivation of a key translation initiation factor, eIF2. However, the persistent translation of certain mRNAs is required for deployment of an adequate stress response. We carried out ribosome profiling of cultured human cells under conditions of severe stress induced with sodium arsenite. Although this led to a ~4.5-fold general translational repression, the protein coding ORFs of certain individual mRNAs exhibited resistance to the inhibition. Nearly all resistant transcripts possess at least one efficiently translated uORF that repress translation of the main coding ORF under normal conditions. Site specific mutagenesis of two identified stress resistant mRNAs (PPP1R15B and IFRD1) demonstrated that a single uORF is sufficient for eIF2-mediated translation control in both cases. Phylogenetic analysis suggests that at least two regulatory uORFs (namely in SLC35A4 and MIEF1) encode functional protein products. Ribosome profiling of sodium arsenite treated cells for examination of translational response to induction of eIF2 phosphoylation

2015-01-27 | E-GEOD-55195 | biostudies-arrayexpress

Erythroblasts

Project description:Erythroblasts

| PRJNA794162 | ENA

Ribosome profiling data obtained from HEK293T cells 30 minutes after treatment with arsenite to a final concentration of 40 µM

2015-01-27 | GSE55195 | GEO

Knockdown of Tis7 in mouse erythroblasts

Project description:Knockdown of Tis7 in mouse erythroblasts

| PRJNA430877 | ENA

RNA-seq of Arabidopsis thaliana shoots and roots treated with tunicamycin: a comparison between double mutant (ire1a ire1b) and wild type genotypes.

Project description:The aim of this study is to identify genes whose expression is under the control of IRE1A and IRE1B during a chronic proteotoxic endoplasmic reticulum stress induced by tunicamycin. The transcriptional response has been measured in separated shoot and root tissues from Arabidopsis seedlings.

2024-02-29 | E-MTAB-12284 | biostudies-arrayexpress

Transcriptional alterations in mDia1-miR146a double deficient erythroblasts and IL-6 treated erythroblasts

Project description:Transcriptome analysis of total RNA samples from FACS sorted erythroblasts To further verify the role of cytokine triggered inflammation signaling in erythropoiesis, we decided to follow the profile of gene expression in erythroblasts using DNA microarrays. To elucidated the gene expression pattern in cytokine, especially IL-6, challenged erythroblasts, in vitro IL-6 treated erythroblasts in EPO containing medium both at day 1 and day 2 were collected. We also sorted the erythroblasts at different stages (Proerythroblasts(I),Basophilic(II) and polychromatic(III) erythroblasts,Orthochromatic(IV) erythroblasts) from both DWT and DKO bone marrow cells through fluorescence activated cell sorting. Total RNA were extracted and processed to hybridize with Affymetrix mouse Clariom S microarrays.

2017-09-09 | GSE98375 | GEO

Expression data from murine splenic erythroblasts in stress erythropoiesis.

Project description:In absence of selenium, proerythroblasts exhibited delay in differentation into basophilic erythroblasts during phenylhydrazine induced stress erythropoiesis. This microarray project was aiming to explore gene expression patterns in erythroblasts in the function of selenium status.

2018-05-28 | GSE102056 | GEO

Next generation sequencing following CUX1 knockdown in erythroblasts

Project description:Anemia is a significant cause of morbidity and mortality in myeloid malignances. Cytogenetic changes are recurrent within malignant hematopoietic stem and progenitor cells, yet their role in anemia pathogenesis remains unknown. One recurrent karyotypic abnormality in myeloid neoplasms is the deletion of part or all of chromosome 7 [-7/del(7q)], which harbors the transcription factor and tumor suppressor gene, CUX1. CUX1 knockdown mouse models develop myeloid disease similar to that seen in humans, including a spontaneous, cell intrinsic, and lethal anemia that develops with age. Here, we elucidate the cellular and molecular mechanisms by which CUX1 regulates erythropoiesis. We demonstrate CUX1 knockdown mice have an aberrant stress erythropoiesis response and decreased survival after acute anemia induction. CUX1 insufficient erythroblasts undergo accelerated cell cycling and increased apoptosis. In line with these phenotypes, transcriptome profiling indicates that CUX1-knockdown elicits increased proliferation and decreased erythroid differentiation gene signatures. ATAC-sequencing demonstrated dramatic, global chromatin opening in CUX1-knockdown erythroblasts. As measured by fluorescence lifetime imaging, this increased chromatin accessibility is concomitant with a disruption in nuclear condensation, which is normally requisite in mammalian erythroblasts for nuclear eviction and terminal differentiation. Finally, we show that CUX1 mediates chromatin compaction by promoting histone deacetylation. Thus, rather than a transcriptional role, our data implicate in an epigenetic regulatory role for CUX1 in erythropoiesis. Furthermore, these results suggest therapeutic targeting of epigenetic regulators, such as histone acetyl transferases, may have clinical benefit for the anemias associated with loss of CUX1.

2021-08-10 | GSE181626 | GEO

Yeast eIF2A plays a minimal role in translation initiation in vivo

Project description:Earlier investigations have associated mammalian eIF2A with Met-tRNAi binding to the 40S subunit and its recruitment to specialized mRNAs in a GTP-independent manner. Additionally, eIF2A has been implicated in non-AUG start codon initiation, particularly under conditions where eIF2 function is attenuated by phosphorylation of its α-subunit during stress or starvation. However, the precise role of eIF2A in vivo translation remains unclear. Moreover, it's uncertain if the conserved ortholog in budding yeast can functionally substitute for eIF2 during stress. To address these questions, we conducted ribosome profiling on a yeast deletion mutant lacking eIF2A, alongside isogenic wild-type (WT) cells, both in the presence or absence of eIF2α phosphorylation induced by amino acid starvation.

2024-01-03 | GSE241473 | 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