Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1196136 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR31657251_1.fastq.gz | Fastqsanger.gz | |||
| SRR31657251_2.fastq.gz | Fastqsanger.gz | |||
| SRR31657252_1.fastq.gz | Fastqsanger.gz | |||
| SRR31657252_2.fastq.gz | Fastqsanger.gz | |||
| SRR31657253_1.fastq.gz | Fastqsanger.gz |
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Project description:We developed Chromatin Interaction Analysis by Paired-End Tag sequencing (ChIA-PET) for de novo detection of global chromatin interactions, and comprehensively mapped the chromatin interaction network bound by estrogen receptor α (ERα) in the human genome. We performed 454 and Illumina sequencing analyses. Keywords: Epigenetics Using 454, we examined 3 libraries: IHM001 (Estrogen Receptor ChIA-PET), IHM043 (Estrogen Receptor ChIP-PET) and IHM062 (IgG ChIA-PET) Using Illumina, we examined 4 libraries: IHM001 (Estrogen Receptor ChIA-PET replicate 1, Paired End Sequencing), IHH015 (Estrogen Receptor ChIA-PET replicate 2, Paired End Sequencing), H3K4me3 ChIP-Seq and RNA polymerase II ChIP-Seq
2009-09-11 | E-GEOD-18046 | biostudies-arrayexpress
Project description:We generated a genome-wide interaction map of regulatory elements in human cells (K562, GM12878) using Chromatin Interaction Analysis by Paired-End Tag sequencing (ChIA-PET) experiments targeting six broadly distributed factors. For data usage terms and conditions, please refer to https://www.encodeproject.org/about/data-use-policy Chromatin interactions identified by ChIA-PET for 4 different histone modifications (H3K4me1, H3K4me2, H3K4me3, H3K27ac), RAD21 and RNAPII in the K562 cell line, two biological replicates each. Additionally, chromatin interactions were identified by ChIA-PET in the GM12878 cell line for RAD21.
2014-08-21 | E-GEOD-59395 | biostudies-arrayexpress
Project description:Higher-order chromosomal organization for transcription regulation is poorly understood in eukaryotes. Using genome-wide Chromatin Interaction Analysis with Paired-End-Tag sequencing (ChIA-PET), we mapped long-range chromatin interactions associated with RNA polymerase II in human cells and uncovered widespread promoter-centered intragenic, extragenic, and intergenic interactions. These interactions further aggregated into higher-order clusters, wherein proximal and distal genes were engaged through promoter-promoter interactions. Most genes with promoter-promoter interactions were active and transcribed cooperatively, and some interacting promoters could influence each other implying combinatorial complexity of transcriptional controls. Comparative analyses of different cell lines showed that cell-specific chromatin interactions could provide structural frameworks for cell-specific transcription, and suggested significant enrichment of enhancer-promoter interactions for cell-specific functions. Furthermore, genetically-identified disease-associated noncoding elements were found to be spatially engaged with corresponding genes through long-range interactions. Overall, our study provides insights into transcription regulation by three-dimensional chromatin interactions for both housekeeping and cell-specific genes in human cells. RNA polymerase II (RNAPII) bound chromatin interactions were extracted with Chromatin Interaction Analysis with Paired-End Tag (ChIA-PET) sequencing, in order to study the transcription regulations with RNAPII-associated long-range chromatin interactions. Five cell lines, namely MCF7 (ATCC# HTB-22), K562 (ATCC# CCL-243), HCT116 (ATCC# CCL-247), HeLa (ATCC# CCL-2.2), and NB4 (Roussel and Lanotte, 2001) (provided by Dr. Sherman Weissman, Yale University), were grown under standard culture conditions and harvested at log phase. Harvested cells were cross-linked using 1% formaldehyde followed by neutralization with 0.2M glycine. Chromatin was isolated and subjected to ChIA-PET protocol as described in Fullwood et al (Fullwood et al: An oestrogen-receptor-alpha-bound human chromatin interactome. Nature 2009, 462(7269):58-64). The ChIA-PET sequence reads were processed and analyzed using ChIA-PET Tool (Li et al: ChIA-PET tool for comprehensive chromatin interaction analysis with paired-end tag sequencing. Genome Biol 2010, 11(2):R22).
2012-01-20 | E-GEOD-33664 | biostudies-arrayexpress
Project description:Using genome-wide Chromatin Interaction Analysis with Paired-End-Tag sequencing, we mapped long-range chromatin interactions associated with RNA polymerase II in three different mouse cell lines and uncovered widespread promoter-centered interactions. These interactions further aggregated into higher-order clusters, in which proximal and distant genes are engaged through enhancer-promoter interactions. Comparative analyses of different cell lines imply that cell specific enhancer interactions are dynamic among different cell specific transcription, and suggest significant enrichment of enhancer-promoter interactions for cell specific manner. Overall, our study provides novel insights into the three-dimensional basis of transcription activity in mouse cells. RNA polymerase II (RNAPII) guided chromatin interactions were discovered by Chromatin Interaction Analysis with Paired-End Tag (ChIA-PET) sequencing, in order to study genome-wise the enhancer-promoter interactions. Three cell lines, namely mouse embryonic stem cell E14, Neural stem cell NS5 and neuroshpere cells were grown under standard culture conditions and harvested at log phase. Harvested cells were cross-linked using 1% formaldehyde followed by neutralization with 0.2M glycine. Chromatin was isolated and subjected to ChIA-PET protocol as described in Fullwood et al, 2009. The ChIA-PET sequence reads were processed and analyzed using ChIA-PET Tool (Li et al, 2010)
2013-11-04 | E-GEOD-44067 | biostudies-arrayexpress
Project description:This data was generated by ENCODE. If you have questions about the data, contact the submitting laboratory directly (Yijun Ruan mailto:ruanyj@gis.a-star.edu.sg). If you have questions about the Genome Browser track associated with this data, contact ENCODE (mailto:genome@soe.ucsc.edu). This track was produced as part of the ENCODE Project. It shows the locations of protein factor mediated chromatin interactions determined by Chromatin Interaction Analysis with Paired-End Tag (ChIA-PET) data (Fullwood et al., 2010) extracted from five different human cancer cell lines (K562 (chronic myeloid leukemia), HCT116 (colorectal cancer), HeLa-S3 (cervical cancer), MCF-7 (breast cancer), and NB4 (promyelocytic)). A chromatin interaction is defined as the association of two regions of the genome that are far apart in terms of genomic distance, but are spatially proximate to each other in the 3-dimensional cellular nucleus. Additionally, ChIA-PET experiments generate transcription factor binding sites. A binding site is defined as a region of the genome that is highly enriched by specific Chromatin ImmunoPrecipitation (ChIP) against a transcription factor, which indicates that the transcription factor binds specifically to this region. The protein factors displayed in the track include estrogen receptor alpha (ERa), RNA polymerase II (RNAPII), and CCCTC binding factor (CTCF). For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf Chromatin interaction analysis with paired-end tag sequencing (ChIA-PET) is a global de novo high-throughput method for characterizing the 3-dimensional structure of chromatin in the nucleus. In the ChIA-PET protocol, samples were cross-linked and fragmented, then subjected to chromatin immunoprecipitation. The DNA fragments that were brought together by the chromatin interactions were then proximity-ligated. During this proximity-ligation step, the half-linkers (created by the fragmentation) containing flanking MmeI sites (type IIS restriction enzymes) were first ligated to the DNA fragments and then ligated to each other to form full linkers. Full linkers bridge either two ends of a self-circularized fragment, or two ends of two different chromatin fragments. The material was then reverse cross-linked, purified and digested with MmeI. MmeI cuts 20 base pairs away from its recognition site. Tag-linker-tag (paired-end tag, PET) constructs were sequenced by ultra-high-throughput methods (Illumina or SOLiD paired-end sequencing). ChIA-PET reads were processed with the ChIA-PET Tool (Li et al., 2010) by the following steps: linker filtering, short reads mapping, PET classification, binding site identification, and interaction cluster identification. The high-confidence binding sites and chromatin interaction clusters were reported. Chromatin interactions identified by ChIA-PET have been validated by 3C, ChIP-3C, 4C and DNA-FISH (Fullwood et al., 2009).
2012-07-19 | E-GEOD-39495 | biostudies-arrayexpress
Project description:RNA Polymerase II ChIA-PET data has revealed enhancers that are active in a profiled cell type and the genes that the enhancers regulate through chromatin interactions. The most commonly used computational method for analyzing ChIA-PET data, the ChIA-PET Tool, discovers interaction anchors at a spatial resolution that is insufficient to accurately identify individual enhancers. We introduce $Germ$, a computational method that estimates the likelihood that any two narrowly defined genomic locations are jointly occupied by RNA Polymerase II. $Germ$ takes a blind deconvolution approach to simultaneously estimate the likelihood of RNA Polymerase II occupation as well as a model of the arrangement of read alignments relative to locations occupied by RNA Polymerase II. Both types of information are utilized to estimate the likelihood that RNA Polymerase II jointly occupies any two genomic locations. We apply $Germ$ to RNA Polymerase II ChIA-PET data from embryonic stem cells to identify the genomic locations that are jointly occupied along with transcription start sites. We show that these genomic locations align more closely with features of active enhancers measured by ChIP-Seq than the locations identified using the ChIA-PET Tool. We also apply $Germ$ to RNA Polymerase II ChIA-PET data from motor neuron progenitors. Based on the $Germ$ results, we observe that a combination of cell type specific and cell type independent regulatory interactions are utilized by cells to regulate gene expression.
2015-07-15 | GSE62266 | GEO
Project description:Cohesin is implicated in establishing tissue-specific DNA loops that target enhancers to promoters, and also localizes to sites bound by the insulator protein CTCF, which blocks enhancer-promoter communication. However, cohesin-associated interactions have not been characterized on a genome-wide scale. Here we performed chromatin interaction analysis with paired-end tag sequencing (ChIA-PET) of the cohesin subunit SMC1A in developing mouse limb. We identified 2,264 SMC1A interactions, of which 1,491 (65%) involved sites co-occupied by CTCF. SMC1A participates in tissue- specific enhancer-promoter interactions and interactions that demarcate regions of correlated regulatory output. In contrast to previous studies, we also identified interactions between promoters and distal sites that are maintained in multiple tissues, but are poised in embryonic stem cells and resolve to tissue-specific activated or repressed chromatin states in the mouse embryo. Our results reveal the diversity of cohesin- associated interactions in the genome and highlight their role in establishing the regulatory architecture of development. Smc1a ChIA-PET, RNA-seq, chromatin state maps (H3K27ac, H3K27me3, H3K4m2), and CTCF and Smc1a binding in mouse embryonic limb bud (E11.5)
2013-05-22 | E-GEOD-42237 | biostudies-arrayexpress
Project description:High-order rice chromatin contains numerous interactions among DNA, RNA and protein to regulate critical biological processes in various aspects of rice life. We developed an effective method for mapping histone-mediated chromatin associated RNA-DNA interactions, followed by paired-end-tag sequencing (ChRD-PET) in rice. With H3K4me3-mediated ChRD-PET, H3 ChRD-PET and RNase H treated H3K4me3-mediated ChRD-PET data, we present a highly comprehensive map of RNA and chromatin interactions in rice MH63. Through integrating ChIA-PET (published data) , ChRD-PET and ssDRIP-seq data analysis, we demonstrated the function of RNAs-chromatin interactions in different level. We also conducted ATAC-seq and integrative analysis uncovered the relationship of epigenetic modification and ChRD-PET interactions. Our findings revealed the map and features of RNAs-chromatin interactions in rice.
2021-12-10 | GSE163115 | GEO
Project description:High-order rice chromatin contains numerous interactions among DNA, RNA and protein to regulate critical biological processes in various aspects of rice life. We developed an effective method for mapping histone-mediated chromatin associated RNA-DNA interactions, followed by paired-end-tag sequencing (ChRD-PET) in rice. With H3K4me3 ChRD-PET, H3 ChRD-PET and RNase H treated H3K4me3 ChRD-PET, we present a highly comprehensive map of RNA and chromatin interactions around promoters in rice MH63. Through integrating ChIA-PET (published data), ChRD-PET and ssDRIP-seq data analysis, we demonstrated the function of RNAs-chromatin interactions in different level. We also conducted ATAC-seq and integrative analysis uncovered the relationship of epigenetic modifications and ChRD-PET interactions. Our findings firstly revealed the map and features of RNAs-chromatin interactions in rice.
2021-12-10 | GSE163118 | GEO
Project description:High-order rice chromatin contains numerous interactions among DNA, RNA and protein to regulate critical biological processes in various aspects of rice life. We developed an effective method for mapping histone-mediated chromatin associated RNA-DNA interactions, followed by paired-end-tag sequencing (ChRD-PET) in rice. With H3K4me3 ChRD-PET, H3 ChRD-PET and RNase H treated H3K4me3 ChRD-PET, we present a highly comprehensive map of RNA and chromatin interactions around promoters in rice MH63. Through integrating ChIA-PET (published data), ChRD-PET and ssDRIP-seq data analysis, we demonstrated the function of RNAs-chromatin interactions in different level. We also conducted ATAC-seq and integrative analysis uncovered the relationship of epigenetic modifications and ChRD-PET interactions. Our findings firstly revealed the map and features of RNAs-chromatin interactions in rice.
2021-12-10 | GSE163117 | GEO