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Sample GSM3142608 Query DataSets for GSM3142608
Status Public on Jun 13, 2018
Title Adapted_SMART_seq2_R23E10_Cell_33
Sample type SRA
 
Source name Adapted_SMART_seq2_R23E10_Cell
Organism Drosophila melanogaster
Characteristics age: 0-7 Days
genotype/variation: R23E10-Gal4 x UAS-CD8::GFP
tissue: brain
Treatment protocol Flies were grown on molasses based flyfood at 25'C with a 12hour/12hour day night cycle
Extracted molecule polyA RNA
Extraction protocol Adult flies were anesthetised by placing them in ice cold glass dishes, heads were removed and brains were dissected removing any cuticle, retina and trachea. Dissected brains were placed in ice cold PBS. When 40 brains were collected, brains were dissociated at 25'C for 2 hours in a mix of Collagenase (75µl @ 100mg/ml) and Dispase (50µl @ 3mg/ml), the sample was pipette mixed every 15 minutes. Cells washed in PBS twice centrifuging at 800 xg) and resuspended in 400µl PBS. A single cell suspension was obtained by filtering with an 11µm cell strainer. Cells were sorted into single wells containing RTL buffer.
Adapted SMART-Seq
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina NextSeq 500
 
Description processed data file:
R23E10_Adapted_SMART-seq2_DGEM.tsv.gz
Data processing The 10X samples were each processed (alignment, barcode assignment and UMI counting) with Cell Ranger (version 2.0.0) count pipeline. All 10X samples were then merged with Cell Ranger (version 2.0.0) aggr pipeline.
The Drop-seq samples were each processed (alignment, barcode assignment and UMI counting) with the Drop-seq tools (version 1.12) developped by Jim Nemesh from McCarroll lab. Gene expression matrices where outer joined.
The reads from CEL-seq2 samples were first cleaned for adapters using fastq-mcf (Aronesty, 2011) and a list of sequencing primers. Multiplexed CEL-seq2 cells were demultiplexed with custom scripts utilizing pysam (Li et al., 2009). Cleaned reads were then mapped to the 3rd 2017 FlyBase release (D. melanogaster r6.16) genome using STAR with default parameters. Reads were counted per gene using featureCounts.
The reads from SMART-seq2 and Adapted SMART-seq2 samples were mapped using STAR (2.5.1) and the expression matrices were generated using featureCounts from Subread 1.5.1.
For the ATAC samples the raw reads were first filtered and scanned for adapters using fastq‐mcf from the ea‐utils r819 package. Read quality was then checked using FastQC 0.11.4. The reads were mapped to the Drosophila genome (dm6) using STAR 2.5.1. The outputted BAM file from STAR was then indexedand sorted using Samtools 1.2. Using genomeCoverageBed from Bedtools 2.23.0, the BAM file was converted to a BedGraph file. For fast, visualization in the IGV GenomeBrowser, the BedGraph file was further processed to a BigWig file using bedGraphtoBigWig.
Genome_build: dm6 (dmel_r6.16_FB2017_03)
Supplementary_files_format_and_content: 10X DGRP-551 + w1118 high quality dataset (57k) raw UMI count matrix stored in compressed Market Exchange Format (MEX). It also contains TSV files with genes and barcode sequences corresponding to row and column indices, respectively
10X DGRP-551 + w1118 large dataset (157k) raw UMI count matrix stored in compressed Market Exchange Format (MEX). It also contains TSV files with genes and barcode sequences corresponding to row and column indices, respectively
CEL-seq2 FAC-sorted R23E10 neurons raw count matrix
SMART-seq2 FAC-sorted R23E10 neurons raw count matrix
Adapted SMART-seq2 FAC-sorted R23E10 neurons raw count matrix
Drop-seq DGRP-551 dataset raw UMI matrix
ATAC-seq bigWig files
 
Submission date May 15, 2018
Last update date Jun 13, 2018
Contact name Stein Aerts
E-mail(s) [email protected]
Organization name KULeuven/VIB
Department Center for Brain & Disease Research
Lab S. Aerts Lab of Computational Biology
Street address Herestraat 49, bus 602
City LEUVEN
ZIP/Postal code 3000
Country Belgium
 
Platform ID GPL19132
Series (1)
GSE107451 A single-cell transcriptome atlas of the ageing Drosophila brain
Relations
BioSample SAMN09210705
SRA SRX4084623

Supplementary data files not provided
SRA Run SelectorHelp
Raw data are available in SRA
Processed data are available on Series record

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