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Sample GSM2293371 Query DataSets for GSM2293371
Status Public on Dec 31, 2016
Title HOXD11_ChIP_Replicate1
Sample type SRA
 
Source name Chicken Micromass primary cells
Organism Gallus gallus
Characteristics cell type: MSCs derived from embryonal HH25 limb bud
infection: 3xFLAG-HOXD11
days in culture: 6 days
antibody: FLAG (Sigma Mouse monoclonal M2; F3165)
Treatment protocol Cells were infected with RCASBP viruses carrying different transgenes.
Growth protocol MSCs were isolated from the HH24 chicken limb buds, infected with an RCASBP(A) or (B) virus carrying the transgene on interest. Afterwards cells were cultured for 6 days with the DMEM:HAM F11 media (supplemented with 10% Fetal Bovine Serum, 0,2% Chicken Serum, 1% Penicilin-Streptomicin and 1% L-glutamine).
Extracted molecule genomic DNA
Extraction protocol Nuclei were isolated with three different lysis buffers as in Lee et al., 2006 and sonicated in the lysis buffer 3 until the chromatin was disrupted to the size between 200 and 300bp.
Libraries were prepared using NEBNext ChIP-seq Library Prep Master Mix for Illumina (New England Biolabs), fragments between 300-450bp were selected and sequenced on a Illumina HiSeq 1500 using Illumina TruSeq v3 chemistry.
 
Library strategy ChIP-Seq
Library source genomic
Library selection ChIP
Instrument model Illumina HiSeq 1500
 
Description HOXD11.bw
HOXD11_peaks.bed
HOXD11-CTCF_peaks.bed
Data processing Reads were filtered by quality using FASTX Toolkit 0.0.13 (-q 28 -p 50 -v -o X -Q 33)
Samples were aligned to the Galgal4 genome using BWA 0.5.9 for Illumina (-n 0 -n 0.04 -o 1 -e -1 -d 16 -i 5 -l-1 -k 2 -M 3 -O 11 -E 4)
Lines were selected with the following pattern: XT:A:U|^@SQ|^@PG
sam files were converted to bam with the samtools version 0.1.18
bam files were merged with Picard 1.56 (beta) version and peaks were called on the pooled bam files using MACS2 (2.0.10.20120913) with the p-value cut off at 1e-1, tag size 50 and the rest of the default options. Afterwards the peaks were ranked according to the p-value and only the reproducible peaks from the list were seleced. Finally the peaks were filtered to discard the peaks located on mitochondrial or random chromosomes. IDR pipeline was used to determine the number of reproducible peaks for every sample which was done as in: Kundaje et al., 2012 ( https://sites.google.com/site/anshulkundaje/projects/idr )
Genome_build: Galgal4
Supplementary_files_format_and_content: bed files are produced as described above. Shared peaks are considered shared only is the summits are at the most 200bp away or closer. Bigwig files are normalised reads per milion and are extended 150bp. Bigwig files were generated using the samtools and bedtools.
Supplementary_files_format_and_content: CTCF_peaks.bed: HOX-CTCF co-bound peaks
 
Submission date Aug 26, 2016
Last update date May 15, 2019
Contact name Daniel Murad Ibrahim
E-mail(s) ibrahim@molgen.mpg.de, daniel.ibrahim@bih-charite.de
Phone 030 84131516
Organization name Berlin Institute of Health
Department Center for Regenerative Therapies
Street address Augustenburger Platz 1
City Berlin
State/province Berlin
ZIP/Postal code 13353
Country Germany
 
Platform ID GPL21476
Series (2)
GSE86088 Genome-wide binding of posterior HOXA/D transcription factors reveals subgrouping and association with CTCF [ChIP-Seq]
GSE86089 Genome-wide binding of posterior HOXA/D transcription factors reveals subgrouping and association with CTCF
Relations
BioSample SAMN05710581
SRA SRX2055089

Supplementary data files not provided
SRA Run SelectorHelp
Processed data are available on Series record
Raw data are available in SRA

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