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Sample GSM5668940 Query DataSets for GSM5668940
Status Public on Mar 07, 2022
Title STEMI_1_A
Sample type SRA
 
Source name Peripheral blood neutrophils
Organism Homo sapiens
Characteristics cell type: Peripheral blood neutrophils
treatment: Unstimulated
disease state: STEMI
time: at presentation
Extracted molecule total RNA
Extraction protocol Human peripheral blood neutrophils were isolated by diluting peripheral venous blood collected in to EDTA tubes 1:1 with PBS and neutrophils were negatively enriched using the EasySep direct human neutrophil isolation kit as per the manufacturers instructions. Isolated neutrophils were with lysed with RLT (Qiagen) and stored at -80ºC. RNA was isolated using RNeasy Mini Kit (Qiagen), according to manufacturer’s instructions.
RNA-seq libraries were prepared with the TruSeq Stranded mRNA LT sample preparation kit (Illumina) using Sciclone and Zephyr liquid handling robotics (PerkinElmer). Library amounts were quantified using the Qubit 2.0 Fluorometric Quantitation system (Life Technologies) and the size distribution was assessed using the Experion Automated Electrophoresis System (Bio-Rad). For sequencing, libraries were pooled, diluted and sequenced on an Illumina HiSeq 3000 instrument using 50 bp single-read chemistry.
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina HiSeq 3000
 
Data processing Illumina HiSeq Control Software (HCS) HD 3.4.0.38 was used for the data acquisition on the sequencing instrument
On-instrument base-calling performed by the Illumina Real-Time Analysis (RTA) software 2.7.7.
BCL to BAM file conversion and demultiplexing with custom programmes (https://github.com/epigen/picard/) based on Picard tools 2.19.2 (https://broadinstitute.github.io/picard/)
BAM to fastq file conversion using samtools v1.7 bam2fq.
Transcripts were quantified from reads using Salmon v1.2.1 with parameters --validateMappings --gcBias --seqBias -l A.
Counts were analysed using DESeq2 v1.24.0 / Bioconductor v3.8 / R v3.5.0. Transcripts with fewer than 10 counts across all samples were removed.
Variance stabilizing transformation was performed and normalized abundance values exported.
Genome_build: Ensembl 96 based on GRCh38
Supplementary_files_format_and_content: Comma-delimited matrix table with normalized abundance values for each sample and transcript
 
Submission date Nov 03, 2021
Last update date Mar 07, 2022
Contact name Robin Choudhury
Organization name University of Oxford
Department Cardiovascular Medicine, Radcliffe Department of Medicine
Lab Robin Choudhury
Street address L6 West Wing, John Radcliffe Hospital, Headley Way
City Oxford
ZIP/Postal code OX3 9DU
Country United Kingdom
 
Platform ID GPL21290
Series (1)
GSE187571 RNA-sequencing of peripheral blood neutrophils from STEMI and NSTEMI patients at presentation and 1 month post-AMI
Relations
BioSample SAMN22866264
SRA SRX12964375

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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