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Sample GSM7324820 Query DataSets for GSM7324820
Status Public on Jan 15, 2024
Title Drosophila_whole body, wild-type strain w1118, 10 day-old_female
Sample type SRA
 
Source name whole body
Organism Drosophila melanogaster
Characteristics tissue: whole body
strain: w1118
genotype: wild-type
age: 10 days
Sex: Female
Treatment protocol Hypothermal shocked
Extracted molecule genomic DNA
Extraction protocol Samples were subjected to manual pulverization via grinded in liquid nitrogen. The pulverized tissues were aliquoted into 1.5 ml lysis buffer [10mM Tris-HCL (pH 7.5), 10mM NaCl, 3mM MgCl2, 0.1% Tween-20 (Sangon Biotech), 0.1% IGEPAL-CA630 (Sigma Aldrich) and 0.01% Digitonin (Thermo Scientific) in water], and followed by incubation for 3 minutes on ice for nuclei extraction.
Library preparations were performed with the CH ATAC-seq protocol
 
Library strategy ATAC-seq
Library source genomic single cell
Library selection other
Instrument model DNBSEQ-T7
 
Description CH ATAC-seq
Data processing For each sequenced CHATAC-seq library, we obtained two FASTQ files, one of which contained combinatorial index for HY(768 indices) and Tn5 (384 indices) in specific base positions. We filtered reads with more than one mismatch in each index and trimmed adaptor sequences using trimmomatic(version 0.3.8). After that, reads from Drosophila were aligned to D.melanogaster dm6 genome(UCSC) using BWA (version 0.7.15). Taking the 9-bp duplication caused by Tn5 transposase into account, we shifted aligned reads + 4bp and -5bp for each positive and negative strand using alignmentSieve(deeptools 3.5.1).Then we used snaptools(version 1.4.8) to keep nonduplicate fragments with high mapping quality (MAPQ > 30) and proper length(<1000 bp) and extracted fragment files from the snap files. Subsequent analysis was performed by ArchR (version 1.0.2). We created arrow files from fragment files by ‘createArrowFiles function’ and constructed customized genome using ‘createGenomeAnnotation’ and ‘createGeneAnnotation function’.
Assembly: D.melanogaster dm6 genome(UCSC)
Supplementary files format and content: BED files recording coordinates of fragments captured by scATAC-seq
 
Submission date May 11, 2023
Last update date Jan 15, 2024
Contact name Guoji Guo
Organization name Center for Stem Cell and Regenerative Medicine
Department Zhejiang University School of Medicine
Street address Yuhangtang street 866
City Hanzhou
ZIP/Postal code 310058
Country China
 
Platform ID GPL32518
Series (2)
GSE232162 Construction of a cross-species chromatin accessibility landscape at a single-cell level using CH-ATAC-seq
GSE232271 Construction of Drosophila chromatin accessibility landscape at a single-cell level using CH-ATAC-seq
Relations
BioSample SAMN35037563

Supplementary file Size Download File type/resource
GSM7324820_Drosophila_female_fragment.bed.gz 2.8 Gb (ftp)(http) BED
Raw data are available in SRA
Processed data provided as supplementary file

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