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Sample GSM4816699 Query DataSets for GSM4816699
Status Public on Jul 30, 2021
Title ChIP-Rx CPSF73 DMSO 2h Rep 1
Sample type SRA
 
Source name bone marrow, CML
Organism Homo sapiens
Characteristics cell line: K562 dTAG-BRD4
treatment: control
antibody: CPSF73, Bethyl, A301-091A, 10 µg
matched input: ChIP-Rx Input R6
Treatment protocol K562 dTAG-BRD4 cells at a concentration of 1 x 10^6/ml were treated with 500 nM dTAG7 or DMSO for 2 h.
Growth protocol K562 dTAG-BRD4 cells were cultured in RPMI containing 10% FBS, 5% penicillin-streptomycin. NIH3T3 cells, which were used as spike-ins, were grown in DMEM containing 10% FBS , 5% penicillin-streptomycin. K562 dTAG-BRD4 cells were plated at 5 x 10^5 cells/ml, NIH3T3 were plated at 2 x 10^6 cells/T75 flask every two days.
Extracted molecule genomic DNA
Extraction protocol K562 dTAG-BRD4 cells were crosslinked with 1% formaldehyde for 5 min at room temperature, NIH3T3 cells were crosslinked for 8 min. After combining NIH3T3 and K562 dTAG-BRD4 cells in a ratio of 1:5, cells were lysed as described by Baluapuri et al. (2019), followed by sonication using a Covaris E220evolution at intensity 4, duty cycle 5%, 200 cycles per burst for 20 min. Lysates were pre-cleared by centrifugation. Lysates and antibodies coupled to Dynabeads Protein G (Thermo Fisher Scientific) were incubated at 4°C overnight with rotation. Afterwards, the beads were washed with buffers prepared according to Baluapuri et al. (2019). DNA fragments were purified using the ChIP DNA Clean & Concentrator kit (Zymo).
Libraries were constructed from 6 to 30 ng DNA using the NEBNext Ultra II DNA kit (NEB) according to the manufacturer's instructions. After purifying the amplified libraries with AMPure XP beads (Beckman Coulter), fragments of 200 to 500 bp were extracted from an 8% TBE gel. Library quality and quantity were assessed using BioAnalyzer HS DNA (Agilent) and Qubit dsDNA HS (Thermo Fisher) assays, respectively.
 
Library strategy ChIP-Seq
Library source genomic
Library selection ChIP
Instrument model Illumina NovaSeq 6000
 
Data processing For ChIP-Rx, we aligned the sequencing reads to a joined reference genome which we assembled from human (hg38/GRCh38) and the spiked-in mouse (mm10/GRCm38)
reference genomes using Bowtie2 v2.3.5.1 (Langmead and Salzberg, 2012) in paired-end mode with '-k 1'.
We extracted the raw density from human for the protein of interest using bedtools (Quinlan and Hall, 2010) in the 'genomecov -bg' mode.
Genome_build: Human (hg38/GRCh38) and the spiked-in mouse (mm10/GRCm38)
Supplementary_files_format_and_content: bigWig files were generated using ‘bedGraphToBigWig’; Scores represent Reads per Million (RPM) or the fold-enrichment 'FE' signal over the matched input control.
 
Submission date Oct 02, 2020
Last update date Jul 30, 2021
Contact name Dr. Andreas Mayer
Organization name Max-Plack-Institute for molecular genetics
Street address Ihnestraße 63-73
City Berlin
ZIP/Postal code 14195
Country Germany
 
Platform ID GPL24676
Series (2)
GSE158965 A BRD4-mediated elongation control point primes transcribing RNA polymerase II for 3'-processing and termination [ChIP-seq]
GSE158966 A BRD4-mediated elongation control point primes transcribing RNA polymerase II for 3'-processing and termination
Relations
BioSample SAMN16355339
SRA SRX9237243

Supplementary file Size Download File type/resource
GSM4816699_MRA56.FE.MRA54.bw 2.4 Gb (ftp)(http) BW
GSM4816699_MRA56.rpm.bw 654.5 Mb (ftp)(http) BW
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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