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Sample GSM7026677

Query DataSets for GSM7026677

Status

Public on Aug 30, 2023

Title

spleen, PBS inoculated, rep1

Sample type

SRA

Source name

spleen

Organism

Mus musculus

Characteristics

tissue: spleen
treatment: PBS inoculated

Extracted molecule

total RNA

Extraction protocol

Total RNA was extracted using Trizol reagent (Invitrogen, CA, USA) following the manufacturer's procedure. The total RNA quantity and purity were analysis of Bioanalyzer 2100 and RNA 6000 Nano LabChip Kit (Agilent, CA, USA) with RIN number >7.0. Approximately 10 ug of total RNA representing a specific adipose type was subjected to isolate Poly (A) mRNA with poly-T oligoattached magnetic beads (Invitrogen). Following purification, the poly(A)- or poly(A)+ RNA fractions is fragmented into small pieces using divalent cations under elevated temperature. Then the cleaved RNA fragments were reverse-transcribed to create the final cDNA library in accordance with the protocol for the mRNA-Seq sample preparation kit (Illumina, San Diego, USA), the average insert size for the paired-end libraries was 300 bp (±50 bp). And then we performed the paired-end sequencing on an Illumina Novaseq™ 6000 at the (lc-bio, China) following the vendor's recommended protocol.
RNA libraries were prepared for sequencing using standard Illumina protocols

Library strategy

RNA-Seq

Library source

transcriptomic

Library selection

cDNA

Instrument model

Illumina HiSeq 4000

Data processing

Illumina Casava1.7 software used for basecalling.
Sequenced reads were trimmed for adaptor sequence, and masked for low-complexity or low-quality sequence, then mapped to mm8 whole genome using bowtie v0.12.2 with parameters -q -p 4 -e 100 -y -a -m 10 --best --strata
Reads Per Kilobase of exon per Megabase of library size (FPKM) were calculated using a protocol from Chepelev et al., Nucleic Acids Research, 2009. In short, exons from all isoforms of a gene were merged to create one meta-transcript. The number of reads falling in the exons of this meta-transcript were counted and normalized by the size of the meta-transcript and by the size of the library.
Data filtering steps.Prior to assembly, the low quality reads(1,reads containing sequencing adaptors; 2,reads containing sequencing primer;3, nucleotide with q quality score lower than 20 )were removed .software CutAdapter,parameters -o 5 -p 100
Read alignment software,software HISAT ,version 2.0 ,parameters -l fr-firststrand -mi 20 -mx 500000 -p 2 -b dta -q phred33-quals -x 9
perform expression level for mRNAs by calculating FPKM.stimate the expression levels of all transcripts.software StringTie ,version 1.3.0,parameters -b dta -q phred33-quals.
Assembly: Beta_vulgaris.GCF_000511025.2_RefBeet-1.2.2
Supplementary files format and content: tab-delimited text files include FPKM values for each Sample

Submission date

Feb 06, 2023

Last update date

Aug 30, 2023

Contact name

Haiguang Mao

E-mail(s)

[email protected]

Phone

13989490184

Organization name

Zhejiang University