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Sample GSM1022911 Query DataSets for GSM1022911
Status Public on Jul 25, 2013
Title ChIP-seq TBP in pre-MBT embryos (replicate 1)
Sample type SRA
 
Source name Staged embryos
Organism Drosophila melanogaster
Characteristics Stage: pre-MBT 01to02h AEL
genotype: Oregon-R
ChIP: TBP
antibody vendor/catalog: rabbit poly-antibody against dTBP
Growth protocol D. melanogaster embryos were collected and aged on yeasted apple juice plates at 25 °C and 60 % humidity.
Extracted molecule genomic DNA
Extraction protocol Each ChIPs were performed as previously described (Zeitlinger 2007) using 200ul embryos for pre-MBT embryos and 50ul for older embryos. Libraries were prepared from the immunoprecipitated DNAs using the Paired-End DNA Sample Preparation Kit (Illumina: PE-102-1001) but with a modified protocol. To remove adapter dimers, biotin-labeled dATP (Invitrogen: 19524-016) was added in the A-tailing reaction after end-repair. After ligation to the PE adaptor, the samples were incubated with streptavidin beads (Invitrogen: 650-01) in 500ul binding buffer at room temperature for 15min. DNA bound to the beads was then washed twice with 800ul binding buffer with0.05% Tween 20, twice with NEB buffer 2 and resuspended in 31ul NEB buffer 2. The PCR reaction was then performed according to the Illumina protocol.
 
Library strategy ChIP-Seq
Library source genomic
Library selection ChIP
Instrument model Illumina Genome Analyzer IIx
 
Data processing Base calls were performed using the default settings of CASAVA
Reads were aligned to the UCSC dm3 genome using Bowtie 0.12.8, allowing only unique alignments with up to 2 mismatches
Genome_build: UCSC dm3
Supplementary_files_format_and_content: BED file containing aligned reads after extending to estimated insert size of the library (fragment size of paired-end samples was determined by read pair alignments)
 
Submission date Oct 19, 2012
Last update date May 15, 2019
Contact name Julia Zeitlinger
E-mail(s) jbz@stowers.org
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 GPL11203
Series (2)
GSE41700 A global change in RNA Polymerase II pausing during the Drosophila midblastula transition [ChIP-seq]
GSE41703 A global change in RNA Polymerase II pausing during the Drosophila midblastula transition
Relations
SRA SRX197583
BioSample SAMN01773236

Supplementary file Size Download File type/resource
GSM1022911_preMBT_tbp_1.bed.gz 27.6 Mb (ftp)(http) BED
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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