NCBI Logo
GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
          Go
Sample GSM3414712 Query DataSets for GSM3414712
Status Public on Oct 14, 2019
Title H4K16ac_ChIP-seq_Dvir_female
Sample type SRA
 
Source name Female 3rd instar larvae
Organism Drosophila virilis
Characteristics strain: San Diego stock center, stock number: 15010-1051.0
chip antibody: H4K16ac(Merck Milipore, 07-329)
tissue: anterior portion of third instar larvae
Sex: female
Growth protocol D. melanogaster and D. virilis flies were maintained in standard Drosophila medium. D. busckii flies were additionally fed with instant Drosophila medium (Formula 4-24, Carolina Biological Supply Company, catalog number 173202) mixed with instant potato powder on top of the standard Drosophila medium.
Extracted molecule genomic DNA
Extraction protocol ChIP-seq: Larvae were dissected and the front part fixed at RT for 15 min with 0.2% formaldehyde. Chromatin was extracted using a sucrose cushion followed by Micrococcal Nuclease treatment and 10 cycles of sonication in a Bioruptor Pico. The lysate was clarified by centrifugation before immunoprecipitation, washes, elution by reverse crosslinking at 65deg for 16h. After RNaseA and proteinaseK treatment, the DNA from input and immunoprecipitation was purified using phenol-chloroform extraction and ethanol precipitation.
NEB Next Ultra II
 
Library strategy ChIP-Seq
Library source genomic
Library selection ChIP
Instrument model Illumina HiSeq 3000
 
Data processing ChIP-seq: Data processing included sequencing quality and adaptor trimming of paired-end reads using trim_galore v0.4, mapping individual replicates using bwa v0.7.12 followed by sorting and indexing of bam files using samtools-1.2. The coverage of mapped reads was calculated using deeptools v2.0.1 with settings `-bs 10 --normalizeTo1x {EFFECTIVE_GENOME_SIZE}`. We defined the effective genome size as the total genome size minus the number of Ns which is 117 Mb and 188 Mb for D. busckii and D. virilis, respectively. Log2fold ratios of merged replicates over the input sample was calculated using bamCompare with settings `-bs 10 --scaleFactorsMethod SES`.
Genome_build: Dvir_HiC, Dbus_HiC, Dm6
Supplementary_files_format_and_content: ChIP-seq: bigWig files of mapped reads of individual replicates (SampleName.bw) and bigWig files of log2fold ratios of merged replicates over the input sample (SampleName-Input.bw).
 
Submission date Oct 02, 2018
Last update date Oct 14, 2019
Contact name Asifa Akhtar
E-mail(s) akhtarlab_data@ie-freiburg.mpg.de
Organization name Max Planck Institute of Immunobiology and Epigenetics
Department Chromatin Regulation
Lab Akhtar Lab
Street address Stuebeweg 51
City Freiburg
ZIP/Postal code 79108
Country Germany
 
Platform ID GPL25633
Series (2)
GSE120750 Hi-C guided assemblies reveal conserved regulatory topologies on X and autosomes despite extensive genome shuffling [ChIP-seq]
GSE120752 Hi-C guided assemblies reveal conserved regulatory topologies on X and autosomes despite extensive genome shuffling
Relations
BioSample SAMN10166439
SRA SRX4786514

Supplementary file Size Download File type/resource
GSM3414712_H4K16acChIP_DV_female_larvae_Rep1.bw 49.7 Mb (ftp)(http) BW
GSM3414712_H4K16acChIP_DV_female_larvae_Rep2.bw 47.3 Mb (ftp)(http) BW
GSM3414712_H4K16ac_DV_female_larvae-Input.bw 94.3 Mb (ftp)(http) BW
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

| NLM | NIH | GEO Help | Disclaimer | Accessibility |
NCBI Home NCBI Search NCBI SiteMap