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Sample GSM2123979 Query DataSets for GSM2123979
Status Public on May 01, 2016
Title P3_D12 - BT20_1250_day2
Sample type SRA
 
Source name BT20
Organism Homo sapiens
Characteristics growth time (days): 3
seeding density (cell/well): 1250
Treatment protocol No treatment
Growth protocol All cells lines were obtained from the ATCC and grown according to their recommendations.
Extracted molecule total RNA
Extraction protocol RNA was extracted using the RNeasy mini kit (Qiagen).
The 3’-DGE libraries were prepared from total RNA according to the Single Cell RNA Barcoding and Sequencing method originally developed for single cell RNA-seq (SCRB-seq, Soumillon et al., 2014) and adapted to extracted total RNA. Briefly, Poly(A)+ mRNA from extracted total RNA are converted to cDNA decorated with universal adapters, sample-specific barcodes and unique molecular identifiers (UMIs) using a template-switching reverse transcriptase. Decorated cDNA from multiple samples are then pooled, amplified and prepared for multiplexed sequencing using a modified transposon-based fragmentation approach that enriches for 3’ ends and preserves strand information.
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina HiSeq 2500
 
Description BT20 cells seeded at 1250 cells per well (384-well plate), harvasted 3 days after seeding
Data processing Paired reads were used for analysis if all sixteen bases of the first read had quality scores of at least 10 and the first six bases corresponded exactly to a designed well-barcode.
All second sequence reads were aligned to a reference database consisting of all human RefSeq mRNA sequences (hg19) and the ERCC RNA spike-in reference sequences using bwa version 0.7.4 4 with non-default parameter “-l 24”.
Reads mapped to multiple genes were excluded from further analysis.
Digital gene expression (DGE) profiles were then generated by counting, for each microplate well and RefSeq gene, the number of unique molecular identifiers (UMIs) associated with alignments to that gene in that well.
Genome_build: hg19
Supplementary_files_format_and_content: tab-separated file with columns as samples (labelled as P3_*) and genes as rows with UMI count for each gene/sample pair.
 
Submission date Apr 14, 2016
Last update date May 15, 2019
Contact name Marc Hafner
E-mail(s) Marc_Hafner@hms.harvard.edu
Organization name Harvard Medical School
Department Systems Biology
Lab Sorger Lab
Street address WAB 438, 200 Longwood Av.
City Boston
State/province MASSACHUSETTS
ZIP/Postal code 02115
Country USA
 
Platform ID GPL16791
Series (1)
GSE80297 mRNA expression of breast cancer cell lines across different densities [SCRB-Seq]
Relations
Reanalyzed by GSE123917
BioSample SAMN04856847
SRA SRX1705402

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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