Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

CTCF-Mediated Human 3D Genome Architecture Reveals Chromatin Topology for Transcription

ABSTRACT: Spatial genome organization and its effect on transcription remains a fundamental biological question. We applied an advanced ChIA-PET strategy to comprehensively map higher-order chromosome folding and chromatin interactions mediated by CTCF and RNAPII with haplotype specificity and nucleotide resolution in different human cell lineages. We find that CTCF-mediated interaction anchors serve as structural foci for spatial organization of constitutive genes concordant with CTCF-motif orientation, whereas RNAPII interacts within these structures by selectively drawing cell-type-specific genes towards CTCF-foci and forming RNAPII foci for coordinated transcription. Furthermore, allelic-variants linked to disease susceptibility are found to impact chromatin topology and transcriptional regulation. Importantly, 3D-genome simulation suggested a model of chromatin folding around chromosomal axes, where CTCF involves in defining the interface between condensed and open compartments for structural regulation. Our new 3D-genome strategy thus provides novel insights to explore the topological mechanism of human variations and diseases.

ORGANISM(S): Homo sapiens

PROVIDER: GSE72816 | GEO | 2015/12/11

SECONDARY ACCESSION(S): PRJNA295132

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Similar Datasets

Diurnal 3D genome organization remodeling orchestrates rhythmic gene expression in rice [BiSulfite-seq]

Project description:Genome-wide rhythmic modulation of RNAPII occupancy and histone acetylation modifications are highly coordinated with rhythmic gene expression, and dynamically modulates diurnal 3D genome architecture remodeling. The rhythmic genes at AM circadian phase and target genes of transcription factors (TFs) are enriched within limited spatial clusters, which forming subnuclear organization hubs to coordinate looping gene expression. Core circadian clock genes related chromatin connectivity networks suggested they co-localized within the same “transcriptional factory” and define a distinct nuclear landscape and circadian outputs in the AM and PM. Our findings uncover novel diurnal fundamental genome folding principles in plants, and reveal a distinct higher-order chromosome organization that is crucial for coordinating diurnal dynamics of transcriptional regulation.

2021-12-24 | GSE166613 | GEO

Diurnal 3D genome organization remodeling orchestrates rhythmic gene expression in rice [ChIP-Seq]

Project description:Genome-wide rhythmic modulation of RNAPII occupancy and histone acetylation modifications are highly coordinated with rhythmic gene expression, and dynamically modulates diurnal 3D genome architecture remodeling. The rhythmic genes at AM circadian phase and target genes of transcription factors (TFs) are enriched within limited spatial clusters, which forming subnuclear organization hubs to coordinate looping gene expression. Core circadian clock genes related chromatin connectivity networks suggested they co-localized within the same ?transcriptional factory? and define a distinct nuclear landscape and circadian outputs in the AM and PM. Our findings uncover novel diurnal fundamental genome folding principles in plants, and reveal a distinct higher-order chromosome organization that is crucial for coordinating diurnal dynamics of transcriptional regulation.

2021-12-24 | GSE143719 | GEO

Diurnal 3D genome organization remodeling orchestrates rhythmic gene expression in rice [RNA-Seq]

Project description:Genome-wide rhythmic modulation of RNAPII occupancy and histone acetylation modifications are highly coordinated with rhythmic gene expression, and dynamically modulates diurnal 3D genome architecture remodeling. The rhythmic genes at AM circadian phase and target genes of transcription factors (TFs) are enriched within limited spatial clusters, which forming subnuclear organization hubs to coordinate looping gene expression. Core circadian clock genes related chromatin connectivity networks suggested they co-localized within the same ?transcriptional factory? and define a distinct nuclear landscape and circadian outputs in the AM and PM. Our findings uncover novel diurnal fundamental genome folding principles in plants, and reveal a distinct higher-order chromosome organization that is crucial for coordinating diurnal dynamics of transcriptional regulation.

2021-12-23 | GSE143718 | GEO

The 3D architecture of the pepper genome and its relationship to function and evolution

Project description:The organization of chromatin into self-interacting domains is universal among eukaryotic genomes, though how and why they form varies considerably. Here we report a chromosome-scale reference genome assembly of pepper (Capsicum annuum) and explore its 3D organization through integrating high-resolution Hi-C maps with epigenomic, transcriptomic, and genetic variation data. Chromatin folding domains in pepper are as prominent as TADs in mammals but exhibit unique characteristics. They tend to coincide with heterochromatic regions enriched with retrotransposons and are frequently embedded in loops, which may correlate with transcription factories. Their boundaries are hotspots for chromosome rearrangements but are otherwise depleted for genetic variation. While chromatin conformation broadly affects transcription variance, it does not predict differential gene expression between tissues. Our results suggest that pepper genome organization is explained by a model of heterochromatin-driven folding promoted by transcription factories and that such spatial architecture is under structural and functional constraints.

2022-06-17 | GSE206031 | GEO

Diurnal 3D genome organization remodeling orchestrates rhythmic gene expression in rice [FAIRE-seq]

Project description:Genome-wide rhythmic occupancy of RNA polymerase II (RNAPII) is highly coordinated with rhythmic genes expression. Rhythmic RNAPII binding dynamically modulates diurnal 3D genome architecture remodeling with 91% of the chromatin interactions were altered. The rhythmic genes cluster at the 8:00 (AM) circadian phase form spatial interacting clusters in turn assist coordinated rhythmic gene expression, while non-rhythmic genes tend to tether together and contribute to expression at 20:00 (PM) circadian window. Target genes and associated cis-binding motifs of transcription factors enrichment points to the existence of subnuclear organization hub enriched around the TFs. RNAPII-associated chromatin interaction domains (CIDs) are under circadian control, and static CIDs with common node genes but changed connecting genes along the circadian cycle, reveal they may function as distinct clock components in the interconnected circuits between morning and evening. Core circadian clock genes related chromatin connectivity networks reveal a compact and highly connected chromatin architecture serving to coordinate gene expression in the morning, whereas a scattered, loose chromatin architecture coordinates PM gene expression. Our findings uncover novel diurnal fundamental genome folding principles in plants, and reveal the distinct higher-order chromosome organization that is crucial for coordinating diurnal dynamics of transcriptional regulation.

2021-12-23 | GSE143723 | GEO

Diurnal 3D genome organization remodeling orchestrates rhythmic gene expression in rice [ChIA-PET]

2021-12-24 | GSE143721 | GEO

Diurnal 3D genome organization remodeling orchestrates rhythmic gene expression in rice [DAP-seq]

2021-12-24 | GSE143722 | GEO

Diurnal 3D genome organization remodeling orchestrates rhythmic gene expression in rice [HiC]

2022-12-23 | GSE221374 | GEO

Rapid depletion of the cohesin subunits and CTCF reveals their role in maintaining high-order genome architecture [RNA-seq]

Project description:Cohesin stalling at CTCF binding sites represents one of the main principles of interphase chromosome organization. In the current studies, we dissect the role of cohesin and CTCF, both alone and in combination, in 3D genome organization by depleting these proteins using acute protein degradation techniques. By systematic examination of interactomic, epigenomic and transcriptomic changes using various sequencing techniques, our studies reveal the functions of cohesin and CTCF in mediating the formation of chromatin loops, topologically associating domains, chromosome compartments and nuclear lamina associating domains. Our studies describe fundamental principles of how the architectural proteins contribute to genome folding at multiple genomic scales and transcriptional regulation.

2022-08-11 | GSE181849 | GEO

Rapid depletion of the cohesin subunits and CTCF reveals their role in maintaining high-order genome architecture [ChIP-seq]

2022-08-11 | GSE181847 | 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