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Sample GSM4744918 Query DataSets for GSM4744918
Status Public on Nov 24, 2021
Title WT_2hr_sample_A
Sample type SRA
 
Source name strain AX3_WT_2hr
Organism Dictyostelium discoideum
Characteristics strain background: AX3
genotype: WT
timepoint: 2hr
Treatment protocol None
Growth protocol Wild-type and mutant amebae were grown under axenic conditions in growth medium until approximately 80% confluence was reached. Eight samples were then frozen until RNA extraction was performed. Other samples of the same type were subjected to nutrient deprivation for 2 and 6 hours, after which the samples were frozen and RNA extracted.
Extracted molecule total RNA
Extraction protocol RNA was purified using the Illustra RNAspin Kit (GE Healthcare Life Sciences) following the manufacturer’s protocol.
Total cellular RNA was quantitated with a Qubit fluorometer, and 250 ng of each sample was transcribed to generate cDNA libraries using the Illumina TruSeq RNA Kit (Illumina Inc, San Diego, CA) following the manufacturer's Low Sample (LS) protocol, with the following modifications: 2 minutes of centrifugation were used during the bead drying steps and 12 cycles were used to enrich DNA fragments.
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina HiSeq 4000
 
Data processing Base calling and generation of FASTQ files was performed with Illumina bcl2fastq2
Read pairs were filtered to remove those where either mate's mean quality score fell below 20
Reads were aligned to D. discoideum reference assembly using STAR 2.5.2b
Counts per gene were determined using featureCounts 1.5.1 based on dictyBase.org gene annotations downloaded in March 2018
Normalized counts were determined using the estimateSizeFactors function
Genome_build: dictyBase.org D. discoideum Chromosomal DNA created 05-13-2009
Supplementary_files_format_and_content: tab-delimited text, raw and normalized read counts per gene
 
Submission date Aug 24, 2020
Last update date Nov 24, 2021
Contact name Melissa Wells
E-mail(s) wellsme@niehs.nih.gov
Phone 919-541-7867
Organization name NIEHS
Department LST
Street address 111 TW Alexander Drive
City Durham
State/province NC
ZIP/Postal code 27103
Country USA
 
Platform ID GPL26000
Series (2)
GSE156811 RNA-Seq analysis of wild-type and ttpA-C240ins mutant D. discoideum amebae during short-term nutrient deprivation
GSE156813 RNA-Seq analysis of wild-type and mutant D. discoideum amebae
Relations
BioSample SAMN15897286
SRA SRX9002302

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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