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Sample GSM4959970 Query DataSets for GSM4959970
Status Public on Jun 07, 2021
Title alh-4_ko_mutant_rep1
Sample type SRA
 
Source name alh-4_ko_mutant_whole body
Organism Caenorhabditis elegans
Characteristics developmental stage: L4
strain: Bristol N2 with alh-4 deletion (hj221)
genotype: alh-4(-)
tissue: Whole body
Treatment protocol No treatment
Growth protocol C. elegans strains were synchronized, fed with E. coli OP50 and grown to L4 stage on standard Nematode Growth Medium (NGM) plates at 20℃ using standard protocol.
Extracted molecule total RNA
Extraction protocol Worms were havested freshly and snap freezed with dry ice before being lysed for library preparation
RNA libraries were prepared for sequencing using the Smart-seq2 Protocol adapted for worm RNA-seq (DOI: 10.21769/bioprotoc.2729) with the following modifications: the number of worms for each replicate and the reagent for worm lysis were scaled up by 10 fold and the worms were broken with a mini-pestle in a 1.5ml disposable tube on ice instead of cutting.
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina NextSeq 500
 
Description ko_mutant_rep1_S4
Data processing Illumina bcl2fastq v2.19 with default parameters was used for basecalling to generate demultiplexed FASTQ files.
To improve mappability of reads, low quality bases were trimmed using Trimmomatic v0.36 (Bolger et al., 2014) with parameters ‘SLIDINGWINDOW:20:20 MINLEN:20’.
Trimmed reads were mapped to mm10 using HISAT2 v2.1.0 (Kim et al., 2015) with default parameters. Unmapped reads and read alignments with a mapping quality below 10 were removed using samtools v1.3 (Li et al., 2009).
After read mapping, StringTie v1.3.3 (Pertea et al., 2015) was used with the default parameters and the Illumina ce10 iGenome annotation GTF file to estimate the expression of annotated transcripts.
Ballgown v2.2.0 (Frazee et al., 2015) was used to calculate gene expression FPKM values and output the gene expression table.
Genome_build: ce10
Supplementary_files_format_and_content: Matrix table with FPKM value for every gene and every sample
 
Submission date Dec 07, 2020
Last update date Jun 07, 2021
Contact name Ho Yi Mak
E-mail(s) [email protected]
Organization name The Hong Kong University of Science and Technology
Department Division of Life Science
Lab Mak Lab
Street address Clear Water Bay
City Hong Kong
ZIP/Postal code NA
Country China
 
Platform ID GPL19757
Series (1)
GSE162792 Nuclear receptor NHR-49 promotes peroxisome proliferation to compensate for aldehyde dehydrogenase deficiency in C. elegans
Relations
BioSample SAMN17016181
SRA SRX9641625

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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