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Sample GSM1816317 Query DataSets for GSM1816317
Status Public on Apr 20, 2016
Title ChIP-seq_EPP_input
Sample type SRA
 
Source name Erythroid progenitors/precursors (EPP)
Organism Homo sapiens
Characteristics cell type: CD34+-derived human erythroid progenitors/precursors
tissue: Human umbilical cord blood
antibody: none (nuclear extracts sonicated but non-immunoprecipitated)
Growth protocol Committed erythroid and myeloid progenitors/precursors (EPP and MPP) were isolated as pools of CD34lowCD36high and CD34-CD13+ populations, after induction for five days in culture in the presence of SCF, IL3 and either Epo or G-CSF, respectively
Extracted molecule genomic DNA
Extraction protocol Chromatin was prepared after cross-linking for 10’ at RT with 1% formaldehyde-containing medium, using truChIP™ High Cell Chromatin Shearing Kit with SDS Shearing Buffer (Covaris). Nuclear extracts were sonicated to obtain DNA fragments averaging 200 bp in length and immunoprecipitated the equivalent of 107 cells overnight with 10 μg of rabbit antibodies against H3K4me1, H3K4me3 and H3K27ac, as previously described (Cattoglio et al., 2010b; Cui et al., 2009).
Libraries were prepared according to Illumina's instructions accompanying the standard protocol of Illumina ChIP-seq DNA sample preparation kit (IP-102-1001, Illumina Inc.).
 
Library strategy ChIP-Seq
Library source genomic
Library selection ChIP
Instrument model Illumina Genome Analyzer IIx
 
Description Input DNA
Data processing Reads from each sample were mapped in three consecutive steps taking into account from 0 to a maximum of 2 mismatches. After each mapping step the unmapped reads were filtered out and remapped by increasing of one. The results of each mapping step were then pooled together into a single bam file.
We performed ChIP-seq peak calling using SICER default parameters (Zang et al. 2009) and using each INPUT data to model the background noise.
Genome_build: hg19
Supplementary_files_format_and_content: peak bed file
 
Submission date Jul 09, 2015
Last update date May 15, 2019
Contact name Silvio Bicciato
E-mail(s) silvio.bicciato@unipd.it
Phone +39-049-827-6108
Organization name University of Padova
Department Molecular Medicine
Street address via U. Bassi 59/b
City Padova
ZIP/Postal code 35131
Country Italy
 
Platform ID GPL10999
Series (2)
GSE70675 Genome-wide definition of regulatory elements in hematopoietic stem cell differentiation [ChIP-Seq]
GSE70677 Genome-wide definition of regulatory elements in hematopoietic stem cell differentiation
Relations
BioSample SAMN03266527
SRA SRX813529

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

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