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Sample GSM4550132 Query DataSets for GSM4550132
Status Public on Feb 23, 2021
Title Input_Halo_0h
Sample type SRA
 
Source name CTCF-AID-HaloTag+TIR
Organism Mus musculus
Characteristics cell type: ES-derived erythroid progenitor cells
strain: C57BL/6
chip antibody: input
treatment: Input for No-treatment groups (HaloTag)
Treatment protocol Cells were treated with either auxin (1mM), Triptolide (1uMx5h) or DRB (75uMx7h). See Description column for Samples.
Growth protocol G1E-ER4 (Weiss et al., 1997) derived single-cell clones were grown in IMDM+15% FBS, penicillin/streptomycin, kit ligand, monothioglycerol and Epoetin alpha in a standard tissue culture incubator at 37 degrees with 5% CO2 (as described in Weiss et al., 1997).
Extracted molecule genomic DNA
Extraction protocol Lysates were prepared from sonicated nuclei and histone-DNA complexes were isolated with indicated antibodies.
ChIP-seq libraries were prepared using Illumina’s TruSeq ChIP sample preparation kit (Illumina, catalog no. IP-202-1012) according to manufacturer’s specifications, with the addition of size selection (left side at 0.9x, right side at 0.6x) using SPRIselect beads (Beckman Coulter, catalog no. B23318). Library size was determined (average 351 bp, range 333-372 bp) using the Agilent Bioanalyzer 2100, followed by quantitation using real-time PCR using the KAPA Library Quant Kit for Illumina (KAPA Biosystems catalog no. KK4835). Libraries were then pooled and sequenced (1x75bp) on the Illumina NextSeq 500 platform according to manufacturer’s instructions. Bclfastq2 v 2.15.04 (default parameters) was used to convert reads to fastq.
 
Library strategy ChIP-Seq
Library source genomic
Library selection ChIP
Instrument model Illumina NextSeq 500
 
Description 2788
Data processing Bowtie 1.1.0 was used to align sequences (Langmead and Salzberg, 2012) to the mm9 reference genome. Reads with more than one mismatch or multiple alignments were excluded.
Significantly enriched regions were called using MACS2 version 2.1.0 (Y. Zhang et al., 2008) with the following parameters: P = 10−5, extsize = 300 and local lambda = 100,000 using whole-cell extract input controls.
Reads for the bigwigs were RPM normalized.
Genome_build: mm9
 
Submission date May 12, 2020
Last update date Feb 23, 2021
Contact name Jing Luan
E-mail(s) jluan@pennmedicine.upenn.edu
Organization name University of Pennsylvania
Street address 3615 Civic Center Blvd, ARC 315
City Philadelphia
ZIP/Postal code 19103
Country USA
 
Platform ID GPL19057
Series (2)
GSE150415 Distinct properties and functions of CTCF revealed by a rapidly inducible degron system [ChIP-Seq]
GSE150418 Distinct properties and functions of CTCF revealed by a rapidly inducible degron system
Relations
BioSample SAMN14905771
SRA SRX8332853

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

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