Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Developmental and housekeeping transcriptional programs display distinct modes of enhancer-enhancer cooperativity in Drosophila

ABSTRACT: Developmental and housekeeping transcriptional programs display distinct modes of enhancer-enhancer cooperativity in Drosophila

PROVIDER: PRJNA1026644 | ENA |

REPOSITORIES: ENA

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
	SRR29386643_1.fastq.gz	Fastqsanger.gz
	SRR29386643_2.fastq.gz	Fastqsanger.gz
	SRR29386644_1.fastq.gz	Fastqsanger.gz
	SRR29386644_2.fastq.gz	Fastqsanger.gz
	SRR29386645_1.fastq.gz	Fastqsanger.gz

Items per page:

1 - 5 of 48

Similar Datasets

Developmental and housekeeping transcriptional programs display distinct modes of enhancer-enhancer cooperativity in Drosophila

Project description:Genomic enhancers are key transcriptional regulators which, upon the binding of sequence-specific transcription factors, can activate their cognate promoter. Although enhancers have been extensively studied in isolation, a substantial number of genes have more than one simultaneously active enhancer, and it remains unclear how these distinct elements cooperate to regulate transcription. In this work, we report that developmental enhancers – that regulate tissue-specific genes – and housekeeping enhancers rely on distinct modes of enhancer-enhancer cooperativity: while developmental enhancers are synergistic, housekeeping enhancers are additive (meaning that their combined activity mirrors the sum of their individual activities). Developmental enhancer synergy is promiscuous in our system and is not associated with specific combinations of transcription factors. However, developmental transcription factors globally contain higher fraction of intrinsically disordered domains, which might support such synergistic interactions.

2024-09-05 | GSE245033 | GEO

Developmental and housekeeping transcriptional programs display distinct modes of enhancer-enhancer cooperativity in Drosophila.

Project description:Genomic enhancers are key transcriptional regulators which, upon the binding of sequence-specific transcription factors, activate their cognate target promoters. Although enhancers have been extensively studied in isolation, a substantial number of genes have more than one simultaneously active enhancer, and it remains unclear how these cooperate to regulate transcription. Using Drosophila melanogaster S2 cells as a model, we assay the activities of more than a thousand individual enhancers and about a million enhancer pairs toward housekeeping and developmental core promoters with STARR-seq. We report that housekeeping and developmental enhancers show distinct modes of enhancer-enhancer cooperativity: while housekeeping enhancers are additive such that their combined activity mirrors the sum of their individual activities, developmental enhancers are super-additive and combine multiplicatively. Super-additivity between developmental enhancers is promiscuous and neither depends on the enhancers' endogenous genomic contexts nor on specific transcription factor motif signatures. However, it can be further boosted by Twist and Trl motifs and saturates for the highest levels of enhancer activity. These results have important implications for our understanding of gene regulation in complex multi-enhancer developmental loci and genomically clustered housekeeping genes, providing a rationale to interpret the transcriptional impact of non-coding mutations at different loci.

| S-EPMC11450171 | biostudies-literature

Enhancer-core promoter specificity separates developmental and housekeeping regulation

Project description:Gene transcription in animals involves the assembly of the RNA polymerase II complex at core promoters and its cell type-specific activation by genomic enhancers that can be located more distally. However, how ubiquitous expression of housekeeping genes is achieved has remained less clear. In particular, it is unknown whether ubiquitously active enhancers exist and how developmental and housekeeping gene regulation is separated. An attractive hypothesis is that different types of core promoters might exhibit an intrinsic specificity towards certain types of enhancers. Here, we show that thousands of enhancers in D. melanogaster S2 cells and ovarian somatic cells (OSCs) exhibit a marked specificity towards one of two core promoters M-bM-^@M-^S one derived from a ubiquitously expressed ribosomal protein gene and another from a developmentally regulated transcription factor. Enhancers that activate the housekeeping core promoter are functional across the two different cell types, while developmental enhancers exhibit strong cell type specificity. Both enhancer classes differ in their overall genomic distribution, the functions of neighbouring genes,these genesM-bM-^@M-^Y core promoter elements, as well as the associated factors. Our results provide evidence for a sequence-encoded enhancer-core promoter specificity that separates developmental and housekeeping gene regulatory programs for thousands of enhancers and their target genes across the entire genome. STARR-seq was performed in S2 and OSC cells using two core promoters each representing housekeeping and developmental transcription programs. Data for housekeeping promoters (hkCP) are presented in this series; Data for developmental core promoters (dCP) samples are presented in GSE40739.

2014-12-10 | E-GEOD-57876 | biostudies-arrayexpress

Enhancer-core promoter specificity separates developmental and housekeeping regulation

Project description:Gene transcription in animals involves the assembly of the RNA polymerase II complex at core promoters and its cell type-specific activation by genomic enhancers that can be located more distally. However, how ubiquitous expression of housekeeping genes is achieved has remained less clear. In particular, it is unknown whether ubiquitously active enhancers exist and how developmental and housekeeping gene regulation is separated. An attractive hypothesis is that different types of core promoters might exhibit an intrinsic specificity towards certain types of enhancers. Here, we show that thousands of enhancers in D. melanogaster S2 cells and ovarian somatic cells (OSCs) exhibit a marked specificity towards one of two core promoters – one derived from a ubiquitously expressed ribosomal protein gene and another from a developmentally regulated transcription factor. Enhancers that activate the housekeeping core promoter are functional across the two different cell types, while developmental enhancers exhibit strong cell type specificity. Both enhancer classes differ in their overall genomic distribution, the functions of neighbouring genes,these genes’ core promoter elements, as well as the associated factors. Our results provide evidence for a sequence-encoded enhancer-core promoter specificity that separates developmental and housekeeping gene regulatory programs for thousands of enhancers and their target genes across the entire genome.

2014-12-10 | GSE57876 | GEO

Hemogen /BRG1 cooperativity modulates promoter and enhancer activation during erythropoiesis

Project description:Hemogen /BRG1 cooperativity modulates promoter and enhancer activation during erythropoiesis

| PRJNA765349 | ENA

Hemogen /BRG1 cooperativity modulates promoter and enhancer activation during erythropoiesis [ChIP-seq]

Project description:Hemogen /BRG1 cooperativity modulates promoter and enhancer activation during erythropoiesis [ChIP-seq]

| PRJNA765350 | ENA

Hemogen /BRG1 cooperativity modulates promoter and enhancer activation during erythropoiesis [RNA-seq]

Project description:Hemogen /BRG1 cooperativity modulates promoter and enhancer activation during erythropoiesis [RNA-seq]

| PRJNA765029 | ENA

Hemogen /BRG1 cooperativity modulates promoter and enhancer activation during erythropoiesis [ATAC-seq]

Project description:Hemogen /BRG1 cooperativity modulates promoter and enhancer activation during erythropoiesis [ATAC-seq]

| PRJNA765025 | ENA

Transcription factor cooperativity at a GATA3 tandem DNA sequence determines oncogenic enhancer-mediated activation.

Project description:The TAL1 oncogene driving T-cell lymphoblastic leukemia (T-ALL) is frequently activated through a mutated cis-regulatory element, whereby small indels create a binding site for the transcription factor MYB. Unravelling how noncoding mutations create oncogenic enhancers is key to understanding cancer biology and can provide important insights into fundamental mechanisms of gene regulation. Utilising a CRISPR-Cas9 screening approach, we identified GATA3 as the key transcriptional regulator of enhancer-mediated TAL1 overexpression. CRISPR-Cas9 engineering of the mutant enhancer revealed a tandem GATA3 site that is required for binding of GATA3, acquisition of an open chromatin state and recruitment of MYB. Reciprocally, MYB binding to its motif is required for GATA3 recruitment, consistent with a transcription factor cooperativity model. Importantly, we show that GATA3 stabilises a TAL1-MYB interaction and that complex formation requires GATA3 binding to DNA. Our work sheds light on the mechanisms of enhancer-mediated oncogene activation, where key TFs cooperate to achieve maximal transcriptional output and thereby support leukemogenesis.

2025-04-01 | GSE290905 | GEO

Large-scale analysis of the integration of enhancer-enhancer signals by promoters

Project description:Genes are often regulated by multiple enhancers. It is poorly understood how the individual enhancer activities are combined to control promoter activity. Anecdotal evidence has shown that enhancers can combine sub-additively, additively, synergistically, or redundantly. However, it is not clear which of these modes are more frequent in mammalian genomes. Here, we systematically tested how pairs of enhancers activate promoters using a three-way combinatorial reporter assay in mouse cells. By assaying about 69,000 enhancer-enhancer-promoter combinations we found that enhancer pairs generally combine near-additively. This behaviour was conserved across seven developmental promoters tested. Surprisingly, these promoters scale the enhancer signals approximately following a power-law, but the exponent of this response varies between promoters. A housekeeping promoter showed an overall different response to enhancer pairs, and a smaller dynamic range. Thus, our data indicate that enhancers mostly act additively, but promoters transform their collective effect non-linearly.

2023-08-10 | GSE240586 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

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