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Sample GSM2247497 Query DataSets for GSM2247497
Status Public on Mar 06, 2017
Title CD34- cells-replicate 2-control
Sample type SRA
 
Source name thymus
Organism Homo sapiens
Characteristics cell type: CD34-
replicate: 2
chip antibody: Isotype control
Treatment protocol CD34+ and CD34- cells were isolated from human thymuses using the magnetic activated cell sorting (MACS) system. The CD34+ fraction showed >85% purity for CD34+ cells when measured by FACS. Two biological replicates were sequenced for each cell type. One replicate was derived from cells pooled from two thymuses. The other replicate was derived from cells from a separate thymus.
Growth protocol CD34+ and CD34- cells were isolated from human thymuses using the magnetic activated cell sorting (MACS) system. The CD34+ fraction showed >85% purity for CD34+ cells when measured by FACS. Two biological replicates were sequenced for each cell type. One replicate was derived from cells pooled from two thymuses. The other replicate was derived from cells from a separate thymus.
Extracted molecule genomic DNA
Extraction protocol CD34+ (19-29×106 cells) or CD34- (60×106 cells) cells were treated with 1% formaldehyde for 10 minutes, which was followed by chromatin shearing with micrococcal nuclease to an average size of 150 base pairs. An aliquot of precleared chromatin was incubated with 1µg of anti-Bcl11b (IP) or 1µg of isotype control (control) antibody (antibodies from Cell Signaling) followed by hybridization to 30μl of Protein G Magnetic Beads for 3 hours. The protein-DNA complexes were eluted, and incubated with proteinase K to digest protein. The eluate was reverse crosslinked by incubation at 65°C for 2 hours. DNA was purified with a DNA purification kit (Cell Signaling).
Libraries were made with the Next Ultra™ DNA Library Prep Kit (NEB) (input=5 ng of ChIP DNA)
Libraries were sequenced on Illumina Nextseq500 (paired end 75 base pair sequencing)
 
Library strategy ChIP-Seq
Library source genomic
Library selection ChIP
Instrument model Illumina NextSeq 500
 
Data processing Read alignment: Bowtie2 (version 2.2.6) was used to align reads to the human genome (hg 19).
Peak calling: MACS2 version 2.1.0 (BAMPE mode, default q value cutoff of 0.01 ), peaks for each IP sample called relative to its corresponding control. Reads with a mapping quality below 30 were removed prior to inputting reads into MACS2
Genome_build: hg19
Supplementary_files_format_and_content: peak
 
Submission date Jul 21, 2016
Last update date May 15, 2019
Contact name chintan parekh
E-mail(s) cparekh@chla.usc.edu
Organization name Children's Hospital Los Angeles
Department Pediatrics
Street address 4650 sunset blvd, mail stop 54
City Los Angeles
State/province California
ZIP/Postal code 90027
Country USA
 
Platform ID GPL18573
Series (2)
GSE84677 BCL11B DNA binding sites in progenitor and differentiated populations in the human thymus
GSE84678 BCL11B
Relations
BioSample SAMN05426692
SRA SRX1968079

Supplementary data files not provided
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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