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Genome-wide maps of chromatin state in E12.5 mouse forelimbs

ABSTRACT: The chromatin state in developing body parts provides a zip code to cellular populations that direct their cell fates. We used antibodies for H3K4me3, H3K27me3 and Pol2, to identify the chromatin state signature of the mouse forelimb during mid-gestation, at embryonic day 12. The families of genes marked included those related to transcription, transcriptional regulation, and embryonic organ development. Transcription factors specific for muscle development were characterized by bivalent chromatin, as E12 is a transition time point from embryonic to fetal myogenesis. The identified chromatin state of muscle specific genes was in strong correlation with their observed expression profile.

ORGANISM(S): Mus musculus

PROVIDER: GSE49010 | GEO | 2015/02/20

SECONDARY ACCESSION(S): PRJNA212630

REPOSITORIES: GEO

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Genome-wide maps of chromatin state in E12.5 mouse forelimbs

Project description:The chromatin state in developing body parts provides a zip code to cellular populations that direct their cell fates. We used antibodies for H3K4me3, H3K27me3 and Pol2, to identify the chromatin state signature of the mouse forelimb during mid-gestation, at embryonic day 12. The families of genes marked included those related to transcription, transcriptional regulation, and embryonic organ development. Transcription factors specific for muscle development were characterized by bivalent chromatin, as E12 is a transition time point from embryonic to fetal myogenesis. The identified chromatin state of muscle specific genes was in strong correlation with their observed expression profile. Examination of the histone marks H3K4me3, H3k27me3, and Pol2 in whole E12.5 forelimnb tissues using the Illumina HiSeq 2000.

2015-02-20 | E-GEOD-49010 | biostudies-arrayexpress

Mapping the Chromatin State Dynamics in Myoblasts

Project description:The chromatin state in developing body parts provides a zip code to cellular populations that direct their cell fates. We used antibodies for H3K4me3, H3K27me3 and Pol2, to identify the chromatin state signature of the Pitx2-null mouse forelimb during mid-gestation, at embryonic day 12. The families of genes marked included those related to transcription, transcriptional regulation, and embryonic organ development. Transcription factors specific for muscle development were characterized by bivalent chromatin, as E12 is a transition time point from embryonic to fetal myogenesis. The identified chromatin state of muscle specific genes was in strong correlation with their observed expression profile. Examination of the histone marks H3K4me3, H3k27me3, and Pol2 in whole E12.5 forelimb tissues from Pitx2 null mice using the Illumina HiSeq 2000

2016-07-17 | E-GEOD-71128 | biostudies-arrayexpress

Mapping the Chromatin State Dynamics in Myoblasts

Project description:The chromatin state in developing body parts provides a zip code to cellular populations that direct their cell fates. We used antibodies for H3K4me3, H3K27me3 and Pol2, to identify the chromatin state signature of the Pitx2-null mouse forelimb during mid-gestation, at embryonic day 12. The families of genes marked included those related to transcription, transcriptional regulation, and embryonic organ development. Transcription factors specific for muscle development were characterized by bivalent chromatin, as E12 is a transition time point from embryonic to fetal myogenesis. The identified chromatin state of muscle specific genes was in strong correlation with their observed expression profile.

2016-07-17 | GSE71128 | GEO

Analysis of gene expression in the distal forelimbs in 2.4Mb inversion adjacent to the HoxD cluster

Project description:E12.5 mouse distal forelimb embryonic transcriptome

2017-07-12 | GSE98232 | GEO

Chromatin state signatures associated with tissue-specific gene expression and enhancer activity in the embryonic limb.

Project description:The regulatory elements that direct tissue-specific gene expression in the developing mammalian embryo remain largely unknown. Although chromatin profiling has proven to be a powerful method for mapping regulatory sequences in cultured cells, chromatin states characteristic of active developmental enhancers have not been directly identified in embryonic tissues. Here we use whole transcriptome analysis coupled with genome-wide profiling of H3K27ac and H3K27me3 to map chromatin states and enhancers in mouse embryonic forelimb and hindlimb. We show that gene expression differences between forelimb and hindlimb, and between limb and other embryonic cell types, are correlated with tissue-specific H3K27ac signatures at promoters and distal sites. Using H3K27ac profiles, we identified 28,377 putative enhancers, many of which are likely to be limb-specific based on strong enrichment near genes highly expressed in the limb and comparisons with tissue-specific p300 sites and known enhancers. We describe a chromatin state signature associated with active developmental enhancers, defined by high levels of H3K27ac marking, nucleosome displacement, hypersensitivity to sonication, and strong depletion of H3K27me3. We also find that developmental enhancers exhibit components of this signature, including hypersensitivity, H3K27ac enrichment and H3K27me3 depletion, at lower levels in tissues in which they are not active. Our results establish histone modification profiling as a tool for developmental enhancer discovery, and suggest that enhancers maintain an open chromatin state in multiple embryonic tissues independent of their activity level. Examination of genome wide H3K27ac and H3K27me3 histone modifications and gene expression in early mouse embryonic limb tissue.

2012-03-16 | E-GEOD-30641 | biostudies-arrayexpress

RING1B binding in the 11 dpc embryonic tissues

Project description:We report the distribution of RING1B (one of Polycomb group factors) within the genome of mouse embryonic tissues. We prepared the chromatin from 11 dpc embryonic forebrain, midbrain, and forelimb buds and made chromatin precipitation with antibody against RING1B (mouse monoclonal antibody). High-throughput sequencing applied for the ChIP analysis revealed the differential distribution of RING1B protein among embryonic tissues. ChIP analysis of mouse 11 dpc embryonic forebrain, midbrain and forelimb buds against anti-RING1B antibody.

2014-01-14 | E-GEOD-48464 | biostudies-arrayexpress

Chromatin state signatures associated with tissue-specific gene expression and enhancer activity in the embryonic limb.

2012-03-16 | GSE30641 | GEO

RING1B binding in the 11 dpc embryonic tissues

2014-01-14 | GSE48464 | GEO

Enhancer landscape of mouse developing midbrain at 11.5 dpc embryos

Project description:We report the distribution of histone H3K4me1 and H3K27ac within the genome of mouse embryonic midbrain. We prepared the chromatin from 11 dpc embryonic midbrain and made chromatin precipitation with antibody against H3K4me1 and H3K27ac (rabbit polyclonal antibody). High-throughput sequencing applied for the ChIP analysis revealed the differential distribution of modified histone within developing midbrain. ChIP analysis of mouse 11 dpc embryonic midbrain and forelimb buds against anti-H3K4me1 and H3K27ac antibody.

2014-01-15 | E-GEOD-49652 | biostudies-arrayexpress

Transcription profiling of mouse forelimb autopods and genital buds from wild type and homozygous Del9 E12.5 embryos

Project description:Despite the importance of Hox genes in patterning the mouse embryo, few target genes of the Hox transcription factors have been identified. To search for HoxD targets we contrasted gene expression profiles in the presence and absence of the HoxD genes in two tissues where these genes are important in embryonic patterning-the genital bud and the distal domain of the limb. The Del9 mutant, in which all nine HoxD genes are absent, shows perturbed digit and genital morphogenesis. Therefore we used Affymetrix GeneChip arrays to compare gene expression in forelimb autopods and genital buds from wild type and homozygous Del9 E12.5 embryos.

2005-06-30 | E-MEXP-257 | biostudies-arrayexpress

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