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Sample GSM6001436 Query DataSets for GSM6001436
Status Public on Sep 27, 2022
Title T19_NP40_MNase_PE50_(20220204_TB_Gv_1_P_NP40_Mnase_20210930)
Sample type SRA
Source name MNase-seq of T19
Organism Marseillevirus marseillevirus
Characteristics strain: T19
description: DNA from MNase-digested chromatin
Extracted molecule genomic DNA
Extraction protocol MNase-extraction_TB2021.pdf
viral DNA
Library strategy MNase-Seq
Library source genomic
Library selection MNase
Instrument model Illumina NextSeq 500
Data processing Genome_build: T19_genome.fasta
1. We used cutadapt 2.9 with parameters "--nextseq-trim 20 -m 20 -a AGATCGGAAGAGCACACGTCTGAACTCCAGTCA -A AGATCGGAAGAGCGTCGTGTAGGGAAAGAGTGT -Z" to trim adapters off 50bp paired-end reads. 2. We used Bowtie2 2.4.2 with options "--very-sensitive-local --soft-clipped-unmapped-tlen --dovetail --no-mixed --no-discordant -q --phred33 -I 10 -X 1000" to map the trimmed reads to the reference sequence (Marseillevirus marseillvirus strain T19 or Marseillevirus marseillvirus strain G648 or 3 copies of the artificial sequence Widom 601). 3. We extracted properly paired reads from the alignments with bedtools bamtobed to generate a bed file of aligned fragments (Supplementary file fragments.bed.gz). 4. We used bedtools genomecov to make a normalized count bigwig file. Normalized counts are the fraction of counts at each base pair scaled by the size of the reference sequence so that if the scaled counts were uniformly distributed there would be 1 at each position (Supplementary file normalized_counts.bigwig).
Submission date Apr 01, 2022
Last update date Sep 29, 2022
Contact name Jorja Henikoff
Phone 206-667-4850
Organization name Fred Hutchinson Cancer Research Center
Department Basic Sciences
Lab Henikoff
Street address 1100 Fairview AV N, A1-162
City Seattle
State/province WA
ZIP/Postal code 98109-1024
Country USA
Platform ID GPL32108
Series (1)
GSE193224 A giant virus genome is densely packaged by stable nucleosomes
BioSample SAMN27183532
SRA SRX14697316

Supplementary file Size Download File type/resource
GSM6001436_T19_NP40_MNase_PE50.fragments.bed.gz 94.3 Mb (ftp)(http) BED
GSM6001436_T19_NP40_MNase_PE50.normalized_counts.bigwig 2.9 Mb (ftp)(http) BIGWIG
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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