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Sample GSM2987593 Query DataSets for GSM2987593
Status Public on Feb 08, 2019
Title input_DNA_rep3
Sample type SRA
 
Source name inpu_DNA_ovaries
Organism Drosophila melanogaster
Characteristics genotype: w1118
tissue: ovary
chip antibody: input
Growth protocol Approximately 1000 ovary pairs were used in each ChIP-Seq experiment from young w1118 females raised at 25°C, 70% humidity on standard Drosophila medium
Extracted molecule genomic DNA
Extraction protocol Dissected ovaries were fixed in 1% formaldehyde, lysed and sonicated. Part of the lysate was kept for the input DNA, the rest was incubated with pre-immune serum or with the anti-dLsd1 antibody. Antibody complexes were recovered with a mixture of protein A- and G-Sepharose. The DNA was recovered by phenol-chloroform extraction and ethanol precipitation.
For the library preparation, ChIP DNA (10 ng) was blunt-ended and phosphorylated, and a single 'A' nucleotide was added to the 3' ends of the fragments in preparation for ligation to an adapter that has a single-base 'T' overhang. The ligation products was purified and size-selected by agencourt AMPure XP beads. Purified DNA was PCR-amplified to enrich for fragments that have adapters on both ends.
 
Library strategy ChIP-Seq
Library source genomic
Library selection ChIP
Instrument model Illumina HiSeq 2000
 
Data processing Reads in fastq files were pre processed with fastx toolkit version 0.0.13.2: fastq_masker fastq_masker -Q33 -q 20 -r N -v -I (mimimum quality threshold : 20, with low quality nucleotides replaced by 'N'
Reads were aligned to the reference Drosophila genome (BDGP6 build based on the Flybase release 6.13, dm6) using bwa software (version 0.6.2-r126) with standard parameters.
Multimapping reds were removed using samtools version 0.1.18
ChIP-seq narrow peaks were called against the input and pre-immune using MACS2 software with the options --nomodel -p 0.001
Genome_build: dm6
 
Submission date Feb 08, 2018
Last update date Feb 08, 2019
Contact name Luisa Di Stefano
E-mail(s) [email protected]
Phone (33) 5 61 55 85 99
Organization name Université Paul Sabatier - Toulouse III
Lab Laboratoire de Biologie Cellulaire et Moléculaire du Contrôle de la Prolifération
Street address LBCMCP - CNRS UMR5088 - IFR 109 Bât 4R3-B1 118 route de Narbonne
City Toulouse Cedex 9
State/province France
ZIP/Postal code 31062
Country France
 
Platform ID GPL13304
Series (1)
GSE110331 Genome-wide study of the role of the histone demethylase dLsd1 in oogenesis
Relations
BioSample SAMN08498343
SRA SRX3663168

Supplementary data files not provided
SRA Run SelectorHelp
Raw data are available in SRA
Processed data not provided for this record

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