Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Zygotic gene activatory network in zebrafish is globally controlled by Pou5f1 SoxB1 enhancers

ABSTRACT: Genetic control of pluripotent mammalian ES cells is determined by a transcriptional network, with a "central core" of transcription factors, Pou5f1, Sox2 and Nanog. Zebrafish homologues of the "core pluripotency factors" Pou5f1, SoxB1 and Nanog-like are also crucially involved in early development. However, the degree of functional similarity of the network between mammals and non-mammals is a matter of debate. To identify the components of Pou5f1-dependent transcriptional networks, we determined the genomic binding sites for Pou5f1 and Sox2 in late blastula stage zebrafish embryos using ChIP-seq. We found that Sox2 and Pou5f1 are co-binding to the regulatory regions of Sox2, Pou5f1, and Nanog-like, as well as to multiple orthologues of mammalian plutipotency network components.

ORGANISM(S): Danio rerio

PROVIDER: GSE39780 | GEO | 2013/08/10

SECONDARY ACCESSION(S): PRJNA171706

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Zygotic gene activatory network in zebrafish is globally controlled by Pou5f1 SoxB1 enhancers

Project description:Genetic control of pluripotent mammalian ES cells is determined by a transcriptional network, with a "central core" of transcription factors, Pou5f1, Sox2 and Nanog. Zebrafish homologues of the "core pluripotency factors" Pou5f1, SoxB1 and Nanog-like are also crucially involved in early development. However, the degree of functional similarity of the network between mammals and non-mammals is a matter of debate. To identify the components of Pou5f1-dependent transcriptional networks, we determined the genomic binding sites for Pou5f1 and Sox2 in late blastula stage zebrafish embryos using ChIP-seq. We found that Sox2 and Pou5f1 are co-binding to the regulatory regions of Sox2, Pou5f1, and Nanog-like, as well as to multiple orthologues of mammalian plutipotency network components. Deep sequencing was performed using the Illumina GAIIx on DNA samples obtained from Sox2 ChIP, Pou5f1-Flag ChIP and Input Control. Pou5f1 was analysed in technical duplicates to obtain higher sequencing depth.

2013-08-10 | E-GEOD-39780 | biostudies-arrayexpress

Nanog, SoxB1 and Pou5f1/Oct4 regulate widespread zygotic gene activation during the maternal-to-zygotic transition

Project description:Upon fertilization, maternal factors direct development in a transcriptionally silent embryo. At the maternal-to-zygotic transition (MZT), a universal step in animal development, unknown maternal factors trigger zygotic genome activation (ZGA). In zebrafish, ZGA is required for gastrulation and clearance of maternal mRNAs, which is achieved in part by the conserved microRNA miR-430. However, the precise factors that activate the zygotic program remain largely unknown. Here we show that Nanog, Pou5f1 and SoxB1 are required for genome activation in zebrafish. We identified several hundred genes directly activated by maternal factors, thus constituting the first wave of zygotic transcription in zebrafish. Ribosome profiling in the pre-MZT embryo revealed that nanog, sox19b and pou5f1 are the most highly translated transcription factor mRNAs. Combined loss of function for Nanog, SoxB1 and Pou5f1 resulted in developmental arrest prior to gastrulation, and a failure to activate >75% of zygotic genes. Furthermore, we found that Nanog binds the miR-430 locus and together with Pou5f1 and SoxB1 initiate miR-430 expression and activity. Our results demonstrate that maternal Nanog, Pou5f1 and SoxB1 are required to initiate the zygotic developmental program and in turn trigger the clearance of the maternal program by activating miR-430 expression. Wild type and loss-of-function total mRNA sequencing of embryonic transcriptomes pre- and post-MZT; ribosome profiling pre-MZT

2013-09-22 | E-GEOD-47558 | biostudies-arrayexpress

Nanog, SoxB1 and Pou5f1/Oct4 regulate widespread zygotic gene activation during the maternal-to-zygotic transition

2013-09-22 | GSE47558 | GEO

Pou5f3, SoxB1 and Nanog remodel chromatin on High Nucleosome Affinity Regions at Zygotic Genome Activation.

Project description:Purpose: Find out the consequences of Pou5f3/Oct4 and Nanog binding to the nucleosome distribution before and after Zygotic Genome Activation Methods: MNase-seq of the wild-type(WT), Pou5f3 (MZspg) and Nanog (MZnanog) mutant zebrafish embryos at 512-cell stage and dome stage. Results: Nanog, Sox19b and Pou5f3 bind to the High Nucleosome Affinity Regions (HNARs). HNARs are spanning over 600 bp, featuring high in vivo and predicted in vitro nucleosome occupancy and high predicted propeller twist DNA shape value. We suggest a two-step model, where the same intrinsic DNA properties of HNAR promote both high nucleosome occupancy and differential binding of TFs. In the first step, already prior to ZGA, Pou5f3 and Nanog reduce nucleosome occupancy on HNARs genome-wide. In the second step, Nanog and Pou5f3/SoxB1 complex maintain open chromatin state on the subset of HNARs, acting synergistically. Nanog binds to the HNAR center, while the Pou5f3/SoxB1 complex stabilizes the flanks.

2019-01-15 | GSE109410 | GEO

SOXB1 genetic regulation in the developing testes

Project description:Absence of Sox3 in mice only results in subtle phenotype, presumably due to the rescue effects from the family members, SOXB1, which consist of Sox1, Sox2 and Sox3. Obvious defect in Sox3-KO mice is seen only in the testes where Sox1 and Sox2 are not co-expressed. The genetic dysregulation underlying this testis defects is unknown. We also hypothesize that this genetic dysregulation can be rescued by the other SOXB1 members. We performed microarray analysis to compare Sox3-KO mouse testes with the WT. We also generated Sox3-Sox2KI mice in which the Sox3 ORF is replaced with Sox2 ORF. Microarray was also performed to these knock-in testis samples to find out whether Sox2 can rescue genetic dysregulation resulting from the absence of Sox3.

2017-05-21 | GSE96805 | GEO

Experiment 2: Pou5f1 and Sox2 overexpression experiments protein synthesis inhibition

Project description:Pou5f1 and Sox2 overexpression experiments with protein synthesis inhibitor were performed to investigate direct transcriptional targets of Pou5f1 and Sox2

2013-07-31 | GSE41107 | GEO

Pou5f1 transcription targets in zebrafish

Project description:Pou5f1 transcription targets in zebrafish

| PRJNA118423 | ENA

SoxB1 transcription factors are essential for intiating and maintaining neural plate border gene expression [ChIP-seq]

Project description:Here we investigate a functional role for SoxB1 transcription factors, Sox2 and Sox3, on the transient embryonic cell population, the neural plate border. We find through gain/loss-of-function studies necessary for neural plate border cells to become neural crest cells. and genomics experiments (ChIP-seq and RNA-seq) that SoxB1 transcription factors directly promote neural plate border formation. and that down-regulation of SoxB1 expression is

2024-06-26 | GSE252615 | GEO

SoxB1 transcription factors are essential for intiating and maintaining neural plate border gene expression [RNA-seq]

2024-06-26 | GSE252573 | GEO

Experiment 2: Pou5f1 and Sox2 overexpression experiments with or without protein synthesis inhibition

Project description:Pou5f1 and Sox2 overexpression experiments with and without protein synthesis inhibitor were performed to investigate direct transcriptional targets of Pou5f1 and Sox2

2010-03-01 | GSE17659 | 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