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Sample GSM2285344 Query DataSets for GSM2285344
Status Public on Sep 01, 2016
Title gd7_zld_1
Sample type SRA
 
Source name gd7 embryos
Organism Drosophila melanogaster
Characteristics developmental stage: 2-4 hr after egg deposition
barcode-kit: Custom GenScript Zld (aa 1117-1327)
library-kit: NEB-next-ChIP
Treatment protocol Embryos were dechorionated for 1 min with 100% bleach and then cross-linked for 15 min with 1.8% formaldehyde (final concentration in water phase).
Growth protocol Adult flies were used in population cages for embryo collections and embryos were collected on apple juice plates for 2 h at 25°C in cages and then matured at 25°C for another 2 h (2-4 h after egg deposition (AED)).
Extracted molecule genomic DNA
Extraction protocol ChIP-seq experiments were performed as described (He et al 2011, Nature Genet, He et al 2015, Nature Biotech) with the following differences: ~100 mg embryos were used per IP. After incubation of magnetic beads with antibodies, H3K27ac IP samples were washed 3 times by rotating tubes for 3 min at 4°C to reduce background.
Several different methods were used for library construction, please refer to the supplemental material of Koenecke et al 2016, Genome Research or Koenecke and Johnston, 2016, Genome Biol
 
Library strategy ChIP-Seq
Library source genomic
Library selection ChIP
Instrument model Illumina NextSeq 500
 
Description ChIP-seq for Zelda in gd7 (replicate 1)
Data processing RNA-Seq
Base calling, read filtering and demultiplexing were performed by Illumina CASAVA 1.8.2 with default settings
Reads were aligned to FlyBase r5.57 genome and gene annotations using Tophat v2.0.14.
Differential gene expression was determined using cuffdiff (Cufflinks v2.2.1) between the three mutant genotypes (Toll10b, Toll rm9/rm10, gd7)
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ATAC-Seq
Base calling, read filtering and demultiplexing were performed by Illumina CASAVA 1.8.2 with default settings
Read pairs were trimmed to 25 bp each and aligned to the UCSC Drosophila melanogaster dm3 genome with Bowtie 1.1.2 with a maximum insert size of 1000 bp, keeping only uniquely aligning reads
Genome_build: UCSC dm3
BigWig files contain per-base coverage of all aligned read pairs
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ChIP-Seq
Base calling, read filtering and demultiplexing were performed by Illumina CASAVA 1.8.2 with default settings
Reads were aligned to the UCSC dm3 reference genome using bowtie v1.1.1 retaining only uniquely aligning reads with a maximum of 2 mismatches
Aligned reads were extended to each library's estimated insert size
Genome-wide coverage counts were calculated and saved in BigWig format
Genome_build: UCSC dm3
Supplementary_files_format_and_content: BigWig files contain pileup counts for each base
 
Submission date Aug 19, 2016
Last update date May 15, 2019
Contact name Julia Zeitlinger
E-mail(s) [email protected]
Organization name Stowers Institute for Medical Research
Lab Zeitlinger Lab
Street address 1000 E 50th St
City Kansas City
State/province MO
ZIP/Postal code 64110
Country USA
 
Platform ID GPL19132
Series (1)
GSE68983 Genome-wide analysis of enhancers in Drosophila DV patterning
Relations
BioSample SAMN05595773
SRA SRX2035280

Supplementary file Size Download File type/resource
GSM2285344_gd7_zld_1.bw 237.0 Mb (ftp)(http) BW
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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