The effect of genotype and in utero environment on inter-individual variation in neonate DNA methylomes (genotypes)
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE54445 | GEO | 2014/04/02
SECONDARY ACCESSION(S): PRJNA236565
REPOSITORIES: GEO
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Project description:We surveyed the genotypes and DNA methylomes of 237 neonates and found 1423 punctate regions of the methylome that were highly variable across individuals, termed variably methylated regions (VMRs), against a backdrop of homogeneity. Although methQTLs were readily detected in neonatal methylomes, genotype alone did not explain the majority of the VMRs. We found that the best explanation for 75% of VMRs was the interaction of genotype with different in utero environments, including maternal smoking, maternal depression, maternal BMI, infant birth weight, gestational age and birth order. We surveyed the genotypes and DNA methylomes of 237 neonates and included 32 technical replicates
2014-04-02 | E-GEOD-53816 | biostudies-arrayexpress
Project description:We surveyed the genotypes and DNA methylomes of 237 neonates and found 1423 punctate regions of the methylome that were highly variable across individuals, termed variably methylated regions (VMRs), against a backdrop of homogeneity. Although methQTLs were readily detected in neonatal methylomes, genotype alone did not explain the majority of the VMRs. We found that the best explanation for 75% of VMRs was the interaction of genotype with different in utero environments, including maternal smoking, maternal depression, maternal BMI, infant birth weight, gestational age and birth order. We surveyed the genotypes and DNA methylomes of 237 neonates
2014-04-02 | E-GEOD-54445 | biostudies-arrayexpress
Project description:We surveyed the genotypes and DNA methylomes of 237 neonates and found 1423 punctate regions of the methylome that were highly variable across individuals, termed variably methylated regions (VMRs), against a backdrop of homogeneity. Although methQTLs were readily detected in neonatal methylomes, genotype alone did not explain the majority of the VMRs. We found that the best explanation for 75% of VMRs was the interaction of genotype with different in utero environments, including maternal smoking, maternal depression, maternal BMI, infant birth weight, gestational age and birth order.
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Project description:DNA methylation is an important epigenetic modification involved in many biological processes and diseases. Many studies have mapped DNA methylation changes associated with embryogenesis, cell differentiation and cancer at a genome-wide scale. Our understanding of genome-wide DNA methylation changes in a developmental or disease-related context has been steadily growing. However, the investigation of which CpGs are variably methylated in different normal cell or tissue types is still limited. Here we present an in-depth analysis of 54 single-CpG-resolution DNA methylomes of normal human cell types by integrating high-throughput sequencing-based methylation data. We find that the percentage of unmethylated CpGs is relatively fixed regardless of cell type. However, which CpGs are unmethylated is cell-type specific. We categorize the 26 million human autosomal CpGs based on their methylation levels across multiple cell types to identify variably methylated CpGs. Among all the autosomal CpGs, 22.6% exhibit variable DNA methylation across cell types included in our study. These variably methylated CpGs form 66 thousand variably methylated regions (VMRs), encompassing 11% of the genome. By integrating a multitude of genomic data, we found that VMRs enrich for histone modifications indicative of enhancers, suggesting their role as regulatory elements marking cell type specificity. VMRs enrich for transcription factor binding sites in a tissue-dependent manner. Importantly, they enrich for GWAS variants, suggesting VMRs could potentially be implicated in disease and complex traits. Taken together, our results highlight the link among CpG methylation variation, genetic variation and disease risk in a tissue-specific manner for many human cell types. Processed data includes new Samples and 75 Samples from GSE16368 and 2 Samples from GSE51565.
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Project description:modENCODE_submission_3852 This submission comes from a modENCODE project of Michael Snyder. For full list of modENCODE projects, see http://www.genome.gov/26524648 Project Goal: We are identifying the DNA binding sites for 300 transcription factors in C. elegans. Each transcription factor gene is tagged with the same GFP fusion protein, permitting validation of the gene's correct spatio-temporal expression pattern in transgenic animals. Chromatin immunoprecipitation on each strain is peformed using an anti-GFP antibody, and any bound DNA is deep-sequenced using Solexa GA2 technology. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf EXPERIMENT TYPE: CHIP-seq. BIOLOGICAL SOURCE: Strain: OP228(official name : OP228 genotype : unc119(ed3);wgIs228(nhr-237:TY1 EGFP FLAG;unc119) outcross : 3 mutagen : Bombard tags : GFP::3xFlag description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The NHR-237::EGFP fusion protein is expressed in the correct nhr-237 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the NHR-237 transcription factor. made_by : Unknown ); Developmental Stage: L1 26dC; Genotype: unc119(ed3);wgIs228(nhr-237:TY1 EGFP FLAG;unc119); Sex: Hermaphrodite; EXPERIMENTAL FACTORS: Developmental Stage L1 26dC; Target gene nhr-237; Strain OP228(official name : OP228 genotype : unc119(ed3);wgIs228(nhr-237:TY1 EGFP FLAG;unc119) outcross : 3 mutagen : Bombard tags : GFP::3xFlag description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The NHR-237::EGFP fusion protein is expressed in the correct nhr-237 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the NHR-237 transcription factor. made_by : Unknown ); temp (temperature) 20 degree celsius
2013-07-11 | E-GEOD-48720 | biostudies-arrayexpress
Project description:modENCODE_submission_3850 This submission comes from a modENCODE project of Michael Snyder. For full list of modENCODE projects, see http://www.genome.gov/26524648 Project Goal: We are identifying the DNA binding sites for 300 transcription factors in C. elegans. Each transcription factor gene is tagged with the same GFP fusion protein, permitting validation of the gene's correct spatio-temporal expression pattern in transgenic animals. Chromatin immunoprecipitation on each strain is peformed using an anti-GFP antibody, and any bound DNA is deep-sequenced using Solexa GA2 technology. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf EXPERIMENT TYPE: CHIP-seq. BIOLOGICAL SOURCE: Strain: OP228(official name : OP228 genotype : unc119(ed3);wgIs228(nhr-237:TY1 EGFP FLAG;unc119) outcross : 3 mutagen : Bombard tags : GFP::3xFlag description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The NHR-237::EGFP fusion protein is expressed in the correct nhr-237 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the NHR-237 transcription factor. made_by : Unknown ); Developmental Stage: L3; Genotype: unc119(ed3);wgIs228(nhr-237:TY1 EGFP FLAG;unc119); Sex: Hermaphrodite; EXPERIMENTAL FACTORS: Developmental Stage L3; Target gene nhr-237; Strain OP228(official name : OP228 genotype : unc119(ed3);wgIs228(nhr-237:TY1 EGFP FLAG;unc119) outcross : 3 mutagen : Bombard tags : GFP::3xFlag description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The NHR-237::EGFP fusion protein is expressed in the correct nhr-237 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the NHR-237 transcription factor. made_by : Unknown ); temp (temperature) 20 degree celsius
2013-07-11 | E-GEOD-48719 | biostudies-arrayexpress
Project description:modENCODE_submission_3849 This submission comes from a modENCODE project of Michael Snyder. For full list of modENCODE projects, see http://www.genome.gov/26524648 Project Goal: We are identifying the DNA binding sites for 300 transcription factors in C. elegans. Each transcription factor gene is tagged with the same GFP fusion protein, permitting validation of the gene's correct spatio-temporal expression pattern in transgenic animals. Chromatin immunoprecipitation on each strain is peformed using an anti-GFP antibody, and any bound DNA is deep-sequenced using Solexa GA2 technology. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf EXPERIMENT TYPE: CHIP-seq. BIOLOGICAL SOURCE: Strain: OP228(official name : OP228 genotype : unc119(ed3);wgIs228(nhr-237:TY1 EGFP FLAG;unc119) outcross : 3 mutagen : Bombard tags : GFP::3xFlag description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The NHR-237::EGFP fusion protein is expressed in the correct nhr-237 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the NHR-237 transcription factor. made_by : Unknown ); Developmental Stage: L2; Genotype: unc119(ed3);wgIs228(nhr-237:TY1 EGFP FLAG;unc119); Sex: Hermaphrodite; EXPERIMENTAL FACTORS: Developmental Stage L2; Target gene nhr-237; Strain OP228(official name : OP228 genotype : unc119(ed3);wgIs228(nhr-237:TY1 EGFP FLAG;unc119) outcross : 3 mutagen : Bombard tags : GFP::3xFlag description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The NHR-237::EGFP fusion protein is expressed in the correct nhr-237 spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the NHR-237 transcription factor. made_by : Unknown ); temp (temperature) 20 degree celsius
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