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CTCF binding patterns in mouse trophoblast stem cells

ABSTRACT: This Series reports data from a CTCF ChIP-Seq experiment performed in F1-hybrid mouse trophoblast stem cells (TSCs). The data are part of a larger study examining inactive X gene expression and chromatin states, reported as GEO Series GSE39406. Included for this dataset are FASTQ files, BED alignments and WIG files with coordinates relative to UCSC genome build mm9, and _snp files that report the location of all SNP-overlapping reads Single CTCF ChIP-Seq experiment

ORGANISM(S): Mus musculus

SUBMITTER: J Calabrese

PROVIDER: E-GEOD-40667 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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The mouse DXZ4 homolog retains Ctcf binding and proximity to Pls3 despite substantial organizational differences compared to the primate macrosatellite.

Horakova Andrea H AH Calabrese J Mauro JM McLaughlin Christine R CR Tremblay Deanna C DC Magnuson Terry T Chadwick Brian P BP

Genome biology 20120820 8

<h4>Background</h4>The X-linked macrosatellite DXZ4 is a large homogenous tandem repeat that in females adopts an alternative chromatin organization on the primate X chromosome in response to X-chromosome inactivation. It is packaged into heterochromatin on the active X chromosome but into euchromatin and bound by the epigenetic organizer protein CTCF on the inactive X chromosome. Because its DNA sequence diverges rapidly beyond the New World monkeys, the existence of DXZ4 outside the primate li ...[more]

PMID: 22906166

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Site-specific silencing of regulatory elements as a mechanism of X-inactivation

Project description:The inactive X chromosome’s (Xi) physical territory is microscopically devoid of transcriptional hallmarks and enriched in silencing-associated modifications. How these microscopic signatures relate to specific Xi sequence is unknown. This study reports the profiling of Xi gene expression and chromatin states at high-resolution via allele-specific sequencing in F1 hybrid mouse trophoblast stem cells (TSCs). Datasets provided include those generated from strand-specific RNA-Seq, ChIP-Seq, FAIRE-Seq, and DNase-Seq protocols. Included for each dataset are FASTQ files, BED alignments and WIG files with coordinates relative to UCSC genome build mm9, and _snp files that report the location of all SNP-overlapping reads. The F1 TSC lines profiled were generated from crosses between CAST/EiJ (Cast) and C57BL/6J (B6) mice. C/B denotes a Cast mother and B6 father, and B/C denotes a B6 mother and Cast father.

2012-11-21 | E-GEOD-39406 | biostudies-arrayexpress

Defining principles of gene and regulatory element imprinting in mouse trophoblast stem cells

Project description:An undefined number of mammalian genes are expressed preferentially from one parental allele, in a process termed genomic imprinting. To shed light on the general principles of this process in a single cell type, we profiled allelic gene expression, DNaseI hypersensitivity (DHS), and CTCF binding in genetically defined murine trophoblast stem cells (TSCs). The data deposited in this entry are from CTCF ChIP-Seq and DNase-Seq experiments performed in the BC.1 cell line. All other data has been previously deposited as part of GEO Series GSE39406. The F1 TSC line profiled was generated from a cross between a C57BL/6J (B6) female and CAST/EiJ (Cast) male mouse.

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A survey of imprinted gene expression in mouse trophoblast stem cells

Project description:Several hundred mammalian genes are expressed preferentially from one parental allele due to a process called genomic imprinting. Genomic imprinting is particularly prevalent in extra-embryonic tissue, where it plays an essential role during development. Here, we profiled imprinted gene expression via RNA-Seq in a panel of six mouse trophoblast stem (TSC) lines, which are ex vivo derivatives of a progenitor population that gives rise to the placental tissue of the mouse. We found evidence of imprinted expression for 48 genes, 31 of which had previously been described as imprinted and 17 of which we suggest as candidate imprinted genes. An equal number of maternally and paternally biased genes were detected. Several genes showed variability in imprinted expression between the six TSC lines. Sixteen of the 48 known and candidate imprinted genes were previously or newly annotated noncoding RNAs, and six encoded for a total of 60 annotated microRNAs. Pyrosequencing across a panel of six TSC lines returned levels of imprinted expression that were concordant with RNA-Seq measurements for eight genes examined in all six independently derived TSC lines. Our results solidify TSCs as a cell culture-based experimental model to study genomic imprinting, and provide a quantitative foundation upon which to delineate mechanisms by which the process is maintained in the mouse. RNA-Seq from F1 hybrid TSC lines generated from crosses between Cast and B6 mice.

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2015-06-19 | E-GEOD-67516 | biostudies-arrayexpress

Escape from X inactivation in mouse tissues (ChIP-Seq)

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2015-02-20 | E-GEOD-59778 | biostudies-arrayexpress

Cell fusion-mediated pluripotent reprogramming triggers ordered changes in chromatin and gene expression across the human inactive X chromosome

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2016-07-01 | E-GEOD-77443 | biostudies-arrayexpress

High resolution analysis of genomic imprinting in the embryonic and adult mouse brain AND Sex-specific imprinting in the mouse brain

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2010-07-08 | E-GEOD-22131 | biostudies-arrayexpress

The genomic landscape of cohesin-associated chromatin interactions

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

Epigenomic profiling of 3T3-L1 adipogenesis

Project description:3T3-L1 pre-adipocyte cells were grown to confluence and induced to differentiate in adipogenic media. Examination of 6 histone modifications and CTCF at 4 time points and PPARG at 1 time point using ChIP-Seq

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De novo mutations in the genome organizer CTCF cause Intellectual Disability (RNA-Seq)

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