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Sample GSM998827 Query DataSets for GSM998827
Status Public on Aug 01, 2013
Title GAF-KD GAF ChIP-seq
Sample type SRA
 
Source name S2 cells depleted of GAF by RNAi
Organism Drosophila melanogaster
Characteristics cell line: ModENCODE S2-DRSC (lot 181A1)
antibody: anti-GAF
Growth protocol S2-DRSC (lot 181A1) cells were grown in Schneider’s media (Sigma) with 10% FBS (lot ASD29137).
Extracted molecule genomic DNA
Extraction protocol The ChIP protocol has been previously described (PMID: 20844575). In short, S2-DRSC (lot 181A1) cells were grown in Schneider's media with 10% FBS (lot ASD29137) and crosslinked with a final concentration of 2% paraformaldhyde for one minute. Crosslinking was quenched by the addition of glycine to a final concentration of 250 mM and the extract was sonicated as previously described (PMID: 20844575). The Protein-A beads were blocked with BSA (1 mg/ml) and Polyvinylpyrrolidone (1 mg/ml) prior to the IP and freshly thawed antiserum was used for each IP.
 
Library strategy ChIP-Seq
Library source genomic
Library selection ChIP
Instrument model Illumina HiSeq 2000
 
Description RNAi treated with GAF dsRNA (10ug/ml) for five days.
Data processing alignment with bwa. Parameters: bwa aln -n 4 dm3.fasta GAF_ChIP_combined.txt.gz > GAF_ChIP_combined.sai
alignment with bwa. Parameters: bwa aln -n 4 dm3.fasta GAF_RNAi_GAF_ChIP_combined.txt.gz > GAF_RNAi_GAF_ChIP_rep1.sai
peak calling macs14 version 1.4.0. Parameters: macs14 -t GAF_chip_gafKD_reps.unique.sam -c combined_PREimmune.unique.sam --name=GAF_chip_mockKD_reps --gsize=165000000 --tsize=46 --mfold=10,10000 --bw=150 --wig --pvalue=0.0001 --call-subpeaks
peak calling macs14 version 1.4.0. Parameters: macs14 -t GAF_chip_mock_reps.unique.sam -c combined_PREimmune.unique.sam --name=GAF_chip_mockKD_reps --gsize=165000000 --tsize=46 --mfold=10,10000 --bw=150 --wig --pvalue=0.0001 --call-subpeaks
Genome_build: dm3
Supplementary_files_format_and_content: Processed files are linked to GSE40646 and include the wiggle, bed, peaks, subpeaks, and summit files from peak calling. File GSE40646_readme.txt details derivation of each processed file. Pre-immune ChIP was submitted previously to GEO as GSM470838.
 
Submission date Sep 06, 2012
Last update date May 15, 2019
Contact name Michael Joseph Guertin
E-mail(s) guertin@uchc.edu
Organization name University of Connecticut
Department Center for Cell Analysis and Modeling
Lab Molecular Genomics
Street address 400 Farmington Ave
City Farmington
State/province CT
ZIP/Postal code 06030
Country USA
 
Platform ID GPL13304
Series (1)
GSE40646 The Genomic Binding Profile of GAGA Element Associated Factor (GAF) in Drosophila S2 cells
Relations
SRA SRX183521
BioSample SAMN01162332

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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