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Sample GSM7851394 Query DataSets for GSM7851394
Status Public on Oct 23, 2023
Title brain_brat_IgG_rep1
Sample type SRA
 
Source name brain
Organism Drosophila melanogaster
Characteristics tissue: brain
developmental stage: L3 larvae
cell type: Type II neuroblast
genotype: brat11/bratDF
antibody: IgG
Treatment protocol Larvae were grown at 18°C until reaching the L3 stage, then shifted to 33°C for 24 hours to induce Zld overexpression
Growth protocol Flies were raised on standard fly food at 25 °C
Extracted molecule genomic DNA
Extraction protocol CUT&RUN was performed using EpiCypher reagents according to the manufacturer protocol. 50 brains were used for each CUT&RUN reaction. Overnight incubation with antibodies was performed in antibody buffer containing 0.05% digitonin. 0.5 µL anti-Zld antibody was used for CUT&RUN.
Libraries were prepared using the NEBNext Ultra II kit (NEB). During library preparation, cleanup steps were performed using a 1.1X ratio of Axygen paramagnetic beads, as recommended by EpiCypher. PCR amplification was performed with the following conditions: 98°C for 45 seconds, then 14 cycles of 98°C for 15 seconds, 60°C for 10 seconds, and a final extension of 72°C for 1 minute.
 
Library strategy OTHER
Library source genomic
Library selection other
Instrument model Illumina NovaSeq 6000
 
Description CUTandRUN_47
brain_brat_IgG_total.bw
Data processing library strategy: CUT&RUN
Raw CUT&RUN reads were trimmed to remove adapter sequences using NGmerge version 0.3
Trimmed reads were aligned to the Drosophila melanogaster genome (version dm6) using bowtie2 with paramters -k 2 --very-sensitive --no-mixed --no-discordant -X 5000.
Reads with a mapping quality < 30 and reads aligning to the mitochondrial genome or scaffolds were discarded.
Peak calling was performed using MACS2 with parameters –broad -f BAMPE –keep-dup all -g dm.
bigWig files were generated using deepTools bamCoverage version 3.5.1 with parameters –binSize 10. bigWig files were z-score normalized by subtracting the genome-wide average of all bins from each bin value and dividing by the standard deviation of all bins.
Assembly: dm6
Supplementary files format and content: bigWig files: z-scoore normalized read depth of merged replicates
 
Submission date Oct 20, 2023
Last update date Oct 23, 2023
Contact name Melissa M Harrison
E-mail(s) [email protected]
Organization name University of Wisconsin Madison
Department Biomolecular Chemistry
Lab 1135 Biochemical Sciences Bldg
Street address 420 Henry Mall
City Madison
State/province WI
ZIP/Postal code 53706
Country USA
 
Platform ID GPL25244
Series (2)
GSE227881 Protein-intrinsic properties and context-dependent effects regulate pioneer-factor binding and function [CUT&RUN]
GSE227884 Protein-intrinsic properties and context-dependent effects regulate pioneer-factor binding and function
Relations
BioSample SAMN37908595
SRA SRX22158156

Supplementary data files not provided
SRA Run SelectorHelp
Raw data are available in SRA

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