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Sample GSM2525777 Query DataSets for GSM2525777
Status Public on Oct 02, 2017
Title dm3.brains.k27ac.wt.rep2
Sample type SRA
 
Source name total brains
Organism Drosophila melanogaster
Characteristics tissue: Total brains from adult flys (2-4 days post-eclosion)
strain: trr[1] ;; trr-WT
chip antibody: anti-H3K27ac (CST, D5E4, Rb mAb #8173)
Treatment protocol Wildtype HCT116 and MLL4-ΔCT cells were infected with lentiviral vector (pSin) expressing either a minimal MLL4 SET domain (WT-MLL4), a catalytic-dead SET domain (C/A-SET), or just empty-vector, and selected in Puromycin (1ug/ml) for 24 hours. Cells were harvested 84 hours after infection for RNA extraction and ChIP-sequencing.
Growth protocol HCT116 cell medium was composed as follow: DMEM 1X (Thermo Fisher), 10% serum (Corning), 1X glutamine (Life Technologies), 1X penicillin/streptomycin (Life Technologies), cells were grown in a CO2 incubator (5% CO2) at 37˚C
Extracted molecule genomic DNA
Extraction protocol RNA was extracted using QIAGEN RNeasy kit. DNA after ChIP protocol was isolated using QIAGEN PCR purification kit.
ChIP-sequencing libraries were prepared using the KAPA HTP Library Preparation Kit complemented with NEXTflex DNA Barcodes from Bioo Scientific. 10 ng of DNA was used as starting material for input and ip samples. Libraries were amplified using 13 cycles on the thermocycler. Post amplification libraries were size selected at 250- 450bp in length using Agencourt AMPure XP beads from Beckman Coulter. Libraries were validated using the Agilent High Sensitivity DNA Kit. RNA-sequencing libraries were prepared using the Illumina TruSeq Stranded Total RNA Preparation Kit with Ribo-Depletion. Input RNA quality was validated using the Agilent RNA 6000 Nano Kit. 200ng-1 µg of total RNA was used as starting material. Libraries were validated using the Agilent DNA 1000 Kit
 
Library strategy ChIP-Seq
Library source genomic
Library selection ChIP
Instrument model Illumina NextSeq 500
 
Data processing Basecalls were performed using bcl2fastq v2.17 for NextSeq output.
Both ChIP-seq and RNA-seq reads were trimmed from 3' end until the final base had a quality score > 30, using Trimmomatic v0.33, discarding reads left with < 20 bp
ChIP-seq reads were aligned to UCSC hg19 and dm3 using Bowtie version 0.12.9. Only uniquely mapping reads with at most two mismatches were retained.
RNA-seq reads were aligned to UCSC hg19 and dm3 using Tophat version 2.0.9. Only uniquely mapping reads with at most two mismatches were retained.
To create ChIP-seq coverage plots, the locations of the mapped ChIP-seq reads were extended to 150 bp to represent sequenced fragments, renormalized (to reads per million, rpm) and reformatted in the bigWig file format.
To create RNA-seq coverage plots, the mapped RNA-seq reads were split according to strand, renormalized (to reads per million, rpm) and reformatted in the bigWig file format.
Genome_build: dm3, hg19
Supplementary_files_format_and_content: bigWig files were generated using the genomicRanges R package. Score represents the normalized coverage of RNA or DNA fragments at a given genomic coordinate.
 
Submission date Mar 07, 2017
Last update date May 15, 2019
Contact name Ali Shilatifard
E-mail(s) [email protected]
Organization name Northwestern University Feinberg School of Medicine
Department Department of Biochemistry and Molecular Genetics
Lab Shilatifard Lab
Street address 320 E Superior St
City Chicago
State/province IL
ZIP/Postal code 60611
Country USA
 
Platform ID GPL19132
Series (1)
GSE95781 Histone H3K4 monomethylation catalyzed by Trr and mammalian COMPASS-like proteins at enhancers is dispensable for development and viability
Relations
BioSample SAMN06546036
SRA SRX2618499

Supplementary file Size Download File type/resource
GSM2525777_dm3.brains.k27ac.wt.rep2.bw 152.2 Mb (ftp)(http) BW
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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