NCBI Logo
GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
          Go
Series GSE15701 Query DataSets for GSE15701
Status Public on Jun 15, 2009
Title Distinctive Chromatin in Human Sperm Packages Genes that Guide Embryo Development: ChIP-chip
Organism Homo sapiens
Experiment type Genome binding/occupancy profiling by genome tiling array
Methylation profiling by genome tiling array
Summary As nucleosomes are widely replaced by protamine in mature human sperm, epigenetic contributions to embryo development appear limited. However, our genome-wide approaches find nucleosomes at low levels genome-wide, but also significantly enriched at imprinted gene clusters, miRNA clusters, HOX gene clusters, and the promoters of other developmental transcription and signaling factors. Developmental promoters were often DNA hypomethylated, and bore histone modifications localized to discrete locations: H3K4me2 is enriched at certain developmental promoters, whereas large blocks of H3K4me3 localize to a subset of developmental promoters, regions in HOX loci, certain non-coding RNAs, and generally to paternally-expressed imprinted loci. In contrast, H3K4me3 is generally absent at paternally-repressed imprinted loci. Interestingly, repressive H3K27me3 is enriched at many developmental promoters that lack early expression in embryos, with significant overlap with bivalent (H3K4me3/H3K27me3) promoters in ES cells. Taken together, epigenetic marking in sperm is extensive, and correlated with developmental regulators.
 
Overall design *Use of ChIP-chip to identify regions enriched for methylated DNA, protamine, histone, and several histone variants in human sperm.

*Histone Localization: Chromatin was prepared from 40 million sperm as described previously (1) in the absence of crosslinking reagent, treated with sequential and increasing MNase (10U-160U), and centrifuged to sediment protamine-associated DNA, releasing mononucleosomes. The pooled mononucleosomes were gel purified (~140-155 bp) for sequencing and array analysis. Histone localization on arrays was performed using a single donor with 3 biological replicas and normalized to total genomic DNA (control).

*Chromatin IP and Preparation for Genomics Methods: ChIP methods were as described previously (2) but were performed without a cross linking agent and slight modifications to the salt levels, 250 mM NaCl, 200 mM LiCl, and replaced the TE wash with 150 mM PBS wash. ChIPs hybridized to arrays were performed from a single donor: H3K4me2 had 2 biological replicas, H3k4me3 had 3-replicas, TH2B had 2 replicas, and all the modifications data were normalized to the gel purified array monucleosomes.

*Methylation Profiling Using MeDIP: This procedure was described previously (3). Samples were hybridized to Agilent expanded promoter arrays, treated according to standard Agilent conditions, and scanned in an Agilent scanner. Sperm MeDIP had three replicas and Fibroblast had 2 replicas. Both Sperm and Fibroblast MeDIPs were normalized to their corresponding input fractions.

1. Zalenskaya, I.A., Bradbury, E.M. & Zalensky, A.O. Chromatin structure of telomere domain in human sperm. Biochem Biophys Res Commun 279, 213-8 (2000).
2. Gordon, M. et al. Genome-Wide Dynamics of SAPHIRE, an Essential Complex for Gene Activation and Chromatin Boundaries. Mol Cell Biol 27, 4058-69 (2007).
3. Weber, M. et al. Distribution, silencing potential and evolutionary impact of promoter DNA methylation in the human genome. Nat Genet 39, 457-66 (2007).

The '*EnrichedRegions.xls' supplementary files list the enriched regions. See 'GSE15701_EnrichedRegions_README.txt'.

The '*OligoRatioData.zip' folders have the supplementary files containing oligo ratio data (log2(AveTreatment/AveControl)). See 'GSE15701_OligoRatioData_README.txt'.
 
Contributor(s) Hammoud SS, Nix DA, Zhang H, Carrell DT, Cairns BR
Citation(s) 19525931
Submission date Apr 16, 2009
Last update date Dec 06, 2012
Contact name Bradley R. Cairns
Organization name HHMI and Huntsman Cancer Institute
Department Oncological Sciences
Street address 2000 Circle of Hope
City Salt Lake City
State/province UT
ZIP/Postal code 84102
Country USA
 
Platforms (2)
GPL4124 Agilent-014706 Human Promoter ChIP-on-Chip Set 244K, Microarray 1 of 2 G4489A (Feature Number version)
GPL4125 Agilent-014707 Human Promoter ChIP-on-Chip Set 244K, Microarray 2 of 2 G4489A (Feature Number version)
Samples (36)
GSM402831 H3K4Me2, Replica 1 and 2, Slide 1
GSM402832 H3K4Me2, Replica 1 and 2, Slide 2
GSM402833 H3K4Me3, Replica 3 and 1, Slide 1
This SubSeries is part of SuperSeries:
GSE15594 Distinctive Chromatin in Human Sperm Packages Genes that Guide Embryo Development
Relations
BioProject PRJNA123019

Download family Format
SOFT formatted family file(s) SOFTHelp
MINiML formatted family file(s) MINiMLHelp
Series Matrix File(s) TXTHelp

Supplementary file Size Download File type/resource
GSE15701_EnrichedRegions_README.txt 1.9 Kb (ftp)(http) TXT
GSE15701_H3K4Me2_EnrichedRegions.xls.gz 477.3 Kb (ftp)(http) XLS
GSE15701_H3K4Me2_OligoRatioData.zip.gz 3.8 Mb (ftp)(http) ZIP
GSE15701_H3K4Me3_EnrichedRegions.xls.gz 488.7 Kb (ftp)(http) XLS
GSE15701_H3K4Me3_OligoRatioData.zip.gz 3.8 Mb (ftp)(http) ZIP
GSE15701_Histone_EnrichedRegions.xls.gz 457.2 Kb (ftp)(http) XLS
GSE15701_Histone_OligoRatioData.zip.gz 3.8 Mb (ftp)(http) ZIP
GSE15701_MeDIP_Fibroblast_EnrichedRegions.xls.gz 527.8 Kb (ftp)(http) XLS
GSE15701_MeDIP_Fibroblast_OligoRatioData.zip.gz 3.8 Mb (ftp)(http) ZIP
GSE15701_MeDIP_Sperm-Fibroblast_EnrichedRegions.xls.gz 1.1 Mb (ftp)(http) XLS
GSE15701_MeDIP_Sperm-Fibroblast_OligoRatioData.zip.gz 3.8 Mb (ftp)(http) ZIP
GSE15701_MeDIP_Sperm_EnrichedRegions.xls.gz 535.2 Kb (ftp)(http) XLS
GSE15701_MeDIP_Sperm_OligoRatioData.zip.gz 3.8 Mb (ftp)(http) ZIP
GSE15701_OligoRatioData_README.txt 551 b (ftp)(http) TXT
GSE15701_Protamine_EnrichedRegions.xls.gz 1.1 Mb (ftp)(http) XLS
GSE15701_Protamine_OligoRatioData.zip.gz 3.8 Mb (ftp)(http) ZIP
GSE15701_RAW.tar 2.4 Gb (http)(custom) TAR (of TXT)
GSE15701_TH2B_EnrichedRegions.xls.gz 463.9 Kb (ftp)(http) XLS
GSE15701_TH2B_OligoRatioData.zip.gz 3.8 Mb (ftp)(http) ZIP
Processed data are available on Series record
Processed data provided as supplementary file

| NLM | NIH | GEO Help | Disclaimer | Accessibility |
NCBI Home NCBI Search NCBI SiteMap