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Sample GSM2494787 Query DataSets for GSM2494787
Status Public on Sep 01, 2017
Title mel rep5
Sample type SRA
 
Source name Drop-seq of whole embryo
Organism Drosophila melanogaster
Characteristics developmental stage: stage 6
cell type: dissociated cells
strain: D.mel y1 w1118 ; P{st.2::Gal4} ; P{vnd::dsRED}
fixation: 80% methanol/PBS
Treatment protocol Dechorionated embryos were staged and stage 6 embryos hand-picked into ice-cold PBS-Triton 0.1%.
Growth protocol Egg lays occurred in 1 hour intervals; embryos were aged for 2:30 hours (D. melanogaster) or 3:30 hours (D. virilis) at room temperature.
Extracted molecule polyA RNA
Extraction protocol Embryos were dissociated first in a Dounce homogenizer and then further using a syringe with 22G x 2" needle, followed by filtering through 20 um cell strainer and fixation in 80% methanol/PBS
Captured transcriptomes were reverse transcribed while bound on barcoded oligo dT beads; PCR handles added by template switching; cDNA PCR-amplified (4 + 9 cycles); 600 pg cDNA library fragmented and amplified with Nextera XT v2 DNA sample preparation kit using custom primers for 3'-targeted amplification (Macosko et al. 2015 Cell 161)
Drop-seq single-cell transcriptome profiling according to Macosko et al. 2015 Cell 161
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina NextSeq 500
 
Description Sample 5
single-cell transcriptomics
Data processing Sequenced reads were converted to SAM files to couple them with the cell and molecular barcodes using Drop-seq_tools v1.12. They were further trimmed for SMART adapter and poly(A) remnants.
The filtered reads were mapped with STAR. The Drop-seq_tools v.1.12 were used to add gene annotations, detect bead synthesis errors and calculate the Digital Gene Expression matrices.
Bulk mRNA reads were mapped with STAR. Gene counts were computed with htseq-count.
Genome_build: Drosophila_melanogaster.BDGP6 & Drosophila_virilis.GCA_000005245.1
Supplementary_files_format_and_content: Digital Gene Expression matrices contain UMI counts per cell and per gene. Htseq-counts measure gene abundances in mRNA samples (read counts)
 
Submission date Feb 17, 2017
Last update date May 15, 2019
Contact name Nikos Karaiskos
E-mail(s) [email protected]
Organization name Max Delbrück Center for Molecular Medicine
Lab Systems Biology of Gene Regulatory Elements
Street address Hannoversche Str. 28
City Berlin
ZIP/Postal code 10115
Country Germany
 
Platform ID GPL19132
Series (1)
GSE95025 The Drosophila Embryo at Single-Cell Transcriptome Resolution
Relations
BioSample SAMN06344993
SRA SRX2573624

Supplementary file Size Download File type/resource
GSM2494787_dge_mel_rep5.txt.gz 1.8 Mb (ftp)(http) TXT
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file
Processed data are available on Series record

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