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Sample GSM4065467 Query DataSets for GSM4065467
Status Public on Aug 18, 2020
Title ∆lsd1 N7985 bisulfite-seq
Sample type SRA
 
Source name germinated conidia
Organism Neurospora crassa
Characteristics genotype: mat ? delta_lsd1::hph
tissue: germinated conidia
Extracted molecule genomic DNA
Extraction protocol Cultures were grown in Vogel's medium and 1.5% sucrose (standard minimal medium), shaking for 18 hours at 32˚C. Genomic DNA was isolated using a protocol modified from (Pomraning et al, 2009). Genomic DNA (1µg) was treated with bisulfite and libraries were prepared for sequencing using the NEBNext Ultra DNA Library Prep Kit for Illumina (E7370; NEB) and EpiMark Bisulfite Conversion Kit (E3318; NEB). The library was purified with Agencourt AMPure XP beads (Beckman Coulter), quantified using a Qubit HS Assay (Life Technologies), visualized on the Fragment AnalyzerTM (Advanced Analytical), and sequenced on a Illumina HiSeq 4000
 
Library strategy Bisulfite-Seq
Library source genomic
Library selection RANDOM
Instrument model Illumina HiSeq 4000
 
Data processing ChIP-seq processing: All sequencing reads were mapped to the corrected N. crassa OR74A (NC12 genome) (Galazka et al., 2016) using Bowtie2 (Langmead and Salzberg, 2012). ChIP-seq read coverage was averaged, normalized, and analyzed using tools available from deepTools2 on the open-source platform Galaxy (Afgan et al., 2016). Sequencing tracks are displayed as 25-nt-window bigWig files with the Integrative Genomics Viewer (IGV) (Robinson et al., 2011).
RNA-seq processing: Tools available on Galaxy (Afgan et al., 2018) were used to map mRNA-sequencing reads (intron size < 1kb) (Dobin et al, 2012) against the corrected N. crassa OR74A (NC12) genome (Galazka et al., 2016), count the number of reads per gene (Dobin et al., 2012) and determine differentially expressed genes with DESeq2 (Love et al, 2014).
Bisulfite-seq processing: The BRAT-BW software package (compbio.cs.ucr.edu/brat/; Harris et al, 2012) was used to prepare and map the reads to the N. crassa OR74A (annotation NC12) genome, which was converted to a four stranded reference genome to permit bisulfite mapping. BRAT-BW acgt-count “-B” option cytosine-only files produced for the forward and reverse strand reads were merged. The average 5mC level was determined for 25bp step-wise window size across the genome using the Methpipe program (http://smithlabresearch.org/software/methpipe/). The resulting file was renamed with a “.igv” file extension to allow display on the Integrated Genome Viewer (IGV; www.broadinstitute.org/igv/)
Genome_build: Neurospora crassa assembly 12 Fixed (files: neurospora_crassa_or74a_12_genome_FIXED.fasta, and neurospora_crassa_or74a_12_transcripts_FIXED.gtf; files are found in GEO submission GSE71024)
Supplementary_files_format_and_content: ChIP-seq processed data files are bigwig files generated using DeepTools (Ramirez et al., 2016) using a window size of 25bp.
Supplementary_files_format_and_content: RNA-seq processed data files are txt files containing normalized counts for 2 replicates each of wild type (Klocko et al. 2016; GSE82222) and ∆lsd1 and the output file from DESeq2 (Love et al., 2014) with pairwise comparisons of 2 biological replicates from each genotype.
Supplementary_files_format_and_content: Bisulfite-seq processed data files are .igv files displaying the % methylation over 25bp windows where a score of 0 is a DNA region that has no cytosine methylation and a score of 1.0 is DNA where all of the cytosines are methylated in the region. Values in between 0 and 1.0 represent partial methylation of a region.
 
Submission date Sep 06, 2019
Last update date Aug 18, 2020
Contact name Eric U Selker
E-mail(s) selker@uoregon.edu
Organization name University of Oregon
Department Biology, Institute of Molecular Biology
Lab Selker
Street address 1229 University of Oregon; 1318 Franklin Blvd.
City Eugene
State/province OR
ZIP/Postal code 97403
Country USA
 
Platform ID GPL23150
Series (1)
GSE137018 Loss of Lysine-Specific Demethylase 1 (LSD1) Drives Aberrant Heterochromatin Formation in Neurospora crassa
Relations
BioSample SAMN12708224
SRA SRX6811936

Supplementary file Size Download File type/resource
GSM4065467_ACAGTG_N7985_bisulfite1_051019_S4_L008_R1_001.igv.gz 17.9 Mb (ftp)(http) IGV
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file
Processed data are available on Series record

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