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Sample GSM4121270 Query DataSets for GSM4121270
Status Public on Apr 10, 2020
Title 2_4_mat: Small RNAs from ovaries of 2.4 mat transgenic strain
Sample type SRA
 
Source name ovaries
Organism Drosophila melanogaster
Characteristics tissue: ovaries
strain: 2.4 mat
molecule subtype: small RNAs
Growth protocol Flies were grown according to standard protocols.
Extracted molecule total RNA
Extraction protocol smallRNA-seq: Total RNA was isolated by Trizol (Invitrogene) and size-fractioned by PAGE (19-29 nt).
smallRNA-seq: Libraries of small RNAs 19-29 nt were constructed as previously described in (Muerdter et al. 2012)
GRO-seq: Nuclei were purified from homogenized ovaries, and were used for run-on reacton with Br-UTP in vitro (Rozkov et al. 2013).
GRO-seq: De novo synthesized RNA was subjected to library preparation for RNA-seq.
 
Library strategy ncRNA-Seq
Library source transcriptomic
Library selection size fractionation
Instrument model Illumina NovaSeq 6000
 
Data processing smallRNA-seq: Reads with clipped 3'-adapter (5'-TGGAATTCTCGGGTGCCAAGG) were passed through length (>18 nt), quality (80% of nt should contain >=20 Phred score) and artefacts filters, and mapped by bowtie2 to dm3 genome assembly and transgene sequences.
GRO-seq: Reads were clipped 3'-adapter (5'-TGGAATTCTCGGGTGCCAAGG), reads smaller than 19 nt were discarded. Reads were mapped to the dm3/R5 genomic assembly of transgene sequence by bowtie2 and deduplexed. Only single-mapped reads were used for the construction the genomic profiles.
Genome_build: dm3
Supplementary_files_format_and_content: smallRNA-seq: Tab-delimited file include the raw counts of clipped read occurrences. GRO-seq: Genomic profiles of RPM-normalized single-mapped reads.
 
Submission date Oct 15, 2019
Last update date Apr 11, 2020
Contact name Pavel Komarov
E-mail(s) pkom94@img.ras.ru
Organization name Institute of Molecular Genetics of the Russian Academy of Sciences
Street address Kurchatov sq. 2
City Moscow
ZIP/Postal code 123182
Country Russia
 
Platform ID GPL25244
Series (1)
GSE138886 Epigenetic requirements for triggering heterochromatinization and Piwi-interacting RNA production from transgenes in the Drosophila germline
Relations
BioSample SAMN13032336
SRA SRX6995971

Supplementary file Size Download File type/resource
GSM4121270_24mat_collapsed.txt.gz 93.9 Mb (ftp)(http) TXT
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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