CEBPA binding in five vertebrates
Ontology highlight
ABSTRACT:
REPOSITORIES: ENA
Similar Datasets
Project description:[E-TABM-722] Transcription factor binding evolution in five vertebrates
| PRJNA128961 | ENA
Project description:Five-vertebrate ChIP-seq reveals the evolutionary dynamics of trancription factor binding. The SRF files for this experiment can be found in the European Read Archive with study accession number ERP000054. ArrayExpress Submission Date: Apr 07 2010 ArrayExpress Release Date: Apr 08 2010 Publication Author List: Dominic Schmidt; Michael D Wilson; Benoit Ballester; Petra C Schwalie; Gordon D Brown; Aileen Marshall; Claudia Kutter; Stephen Watt; Celia P Martinez-Jimenz; Sarah MacKay; Iannis Talianidis; Paul Flicek; Duncan T Odom Publication Title: Transcription factor binding evolution in five vertebrates Person Roles: submitter Person Last Name: Flicek Person First Name: Paul Person Email: flicek@ebi.ac.uk Person Address: Wellcome Trust Genome Campus, Hinxton, Cambridge, CB10 1SD, UK Person Affiliation: EBI
2010-06-02 | GSE22078 | GEO
Project description:Five-vertebrate ChIP-seq reveals the evolutionary dynamics of trancription factor binding. The SRF files for this experiment can be found in the European Read Archive with study accession number ERP000054. The fastq files can be found in the raw archives and for some assays links to the ENA runs and ENA fastq files are provided.
2010-04-08 | E-TABM-722 | biostudies-arrayexpress
Project description:Weaker CEBPA binding in the human than in the mouse genome is a general trait of the human genome across multiple biological conditions. Alu repeats carry strong CEBPA binding motifs, which compete with regulatory regions for CEBPA binding. To directly test this hypothesis, we attempted to overcome Alu competition by using, first, a CRISPR-dCas9 system in BLaER1 cells (Rapino et al. 2013). By promoting the recruitment of the inactive Cas9 to Alu regions with specific gRNAs targeting Alu repeats containing strong CEBPA motifs we protected them, hampering CEBPA binding to these regions. We tested the effect of two different paired gRNA constructs in two replicates and one control paired gRNA in two replicates. Second, we also further overexpressed CEBPA in human BLaER1 cells to overcome Alu competition. We tested two doses of CEBPA overexpression in two replicates and one control experiment in two replicates.
2023-05-01 | E-MTAB-12597 | biostudies-arrayexpress
Project description:This study aims to investigate the DNA methylation patterns at transcription factor binding regions and their evolutionary conservation with respect to binding activity divergence. We combined newly generated bisulfite-sequencing experiments in livers of five mammals (human, macaque, mouse, rat and dog) and matched publicly available ChIP-sequencing data for five transcription factors (CEBPA, HNF4a, CTCF, ONECUT1 and FOXA1). To study the chromatin contexts of TF binding subjected to distinct evolutionary pressures, we integrated publicly available active promoter, active enhancer and primed enhancer calls determined by profiling genome wide patterns of H3K27ac, H3K4me3 and H3K4me1.
2022-10-20 | E-MTAB-11946 | biostudies-arrayexpress
Project description:Transcription Factor binding evolution in five mouse species
| PRJEB1247 | ENA
Project description:This study aims to compar transcription factor binding region between five mouse species.
2013-08-30 | E-MTAB-1414 | biostudies-arrayexpress
Project description:C/EBPalpha is a transcription factor critically involved in myeloid development and indispensable for formation of granulocytes. To track the cellular fate of stem and progenitor (LSK) cells, which express C/EBPalpha, we developed a mouse model expressing Cre recombinase from the Cebpa promoter and an inducible EYFP allele. We show that Cebpa/EYFP+ cells represent a significant subset of LSK cells, which predominantly give rise to myeloid cells in steady state hematopoiesis. C/EBPalpha induced a robust myeloid gene expression signature and downregulated E2A-induced regulators of early lymphoid development. In addition, Cebpa/EYFP+ cells comprise a fraction of early thymic progenitors (ETP) with robust myeloid potential. However, Cebpa/EYFP+ LSK and ETP cells retained the ability to develop into erythroid and T-lymphoid lineages, respectively. These findings support an instructive, but argue against a lineage restrictive role of C/EBPalpha in multipotent hematopoietic and thymic progenitors. We performed global gene expression profiling of double-sorted Cebpa/EYFP+ and Cebpa/EYFP- LSK cells of pooled Cebpa Cre/wt R26 EYFP reporter mice to identify differentially regulated genes in Cebpa+ versus Cebpa- LSK cells. RNA was isolated from three biological replicates of Cebpa/EYFP+ LSK cells and two biological replicates of Cebpa/EYFP- LSK cells. To determine if the identified genes were truly dependent on Cebpa expression, we also performed global gene expression profilling of Cebpa/EYFP+ and Cebpa/EYFP- fetal liver LSK cells of Cebpa Cre/fl R26 EYFP mice. Induction of Cebpa/Cre expression in these mice leads to Cre-mediated recombination of the floxed wt Cebpa allele resulting in a complete Cebpa knock-out. In this case, RNA was isolated from two biological replicates of either Cebpa/EYFP+ and Cebpa/EYFP- LSK cells. In addition, we included one biological replicate of Cebpa/EYFP+ and Cebpa/EYFP- fetal liver LSK cells of Cebpa Cre/wt R26 EYFP mice to determine the correlation of differentially regulated genes in bone marrow and fetal liver LSK cells.
2010-08-26 | E-GEOD-23800 | biostudies-arrayexpress
Project description:Mutations in CCAAT/enhancer binding protein alpha (CEBPA) are seen in 5-14% of acute myeloid leukemia (AML) and have been associated with a favorable clinical outcome. Most AMLs with CEBPA mutations simultaneously carry two mutations (CEBPAdouble-mut), usually biallelic, while single heterozygous mutations (CEBPAsingle-mut) are less frequently seen. Using denaturing high performance liquid chromatography and nucleotide sequencing we identified among a cohort of 598 newly diagnosed AMLs a subset of 41 CEBPA mutant cases, i.e. 28 CEBPAdouble-mut and 13 CEBPAsingle-mut cases. CEBPAdouble-mut associated with a unique gene expression profile as well as favorable overall and event-free survival, retained in multivariable analysis that included cytogenetic risk, FLT3-ITD and NPM1 mutation, white blood cell count and age. In contrast, CEBPAsingle-mut AMLs did not express a discriminating signature and could not be distinguished from wild type cases as regards clinical outcome. These results demonstrate significant underlying heterogeneity within CEBPA mutation positive AML with prognostic relevance. Experiment Overall Design: Gene expression profiling of 524 cases of de novo AML. Comparisons of cases with double and single CEBPA mutations versus those with wild type CEBPA.
2009-01-23 | E-GEOD-14468 | biostudies-arrayexpress
Project description:The key myeloid transcription factor (TF) CEBPA is frequently mutated in acute myeloid leukemia (AML), but the molecular ramifications of this leukemic driver mutation remain elusive. To investigate CEBPA mutant AML, we compared gene expression changes in human CEBPA mutant AML and in the corresponding CebpaLp30 mouse model, and identified a conserved cross-species transcriptional program. ChIP-seq revealed aberrantly activated enhancers, exclusively occupied by the leukemia-associated CEBPA-p30 isoform. One leukemic-enhancer upstream of Nt5e, encoding CD73, was physically and functionally linked to this conserved AML gene, and could be activated by CEBPA. Targeting of CD73-adenosine signaling increased AML survival in transplanted mice. Our data indicate a first-in-class link between a TF cancer driver mutation and a druggable, direct transcriptional target.
2019-08-08 | PXD011359 | Pride