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Sample GSM7622273 Query DataSets for GSM7622273
Status Public on Dec 12, 2023
Title P23-45_40min_input_gp96_replica1
Sample type SRA
 
Source name bacterial
Organism Thermus thermophilus HB8
Characteristics infection: P23-45 bacteriophage
cell type: bacterial
chip antibody: none
Growth protocol Bacterial cells were grown in an orbital shaker at 70°C in liquid medium (0.8% tryptone, 0.4% NaCl, 0.2% yeast extract, 0.5 mM MgSO4, and 0.5 mM CaCl2 in “Vittel” mineral water). Cells were grown until an optical density at 600 nm of around 0.2 and infected with P23-45 bacteriophage at a multiplicity of infection 10. At 5, 20, and 40 min post infection 200 ml of cells were collected.
Extracted molecule genomic DNA
Extraction protocol Infected cells were fixed with 1% formaldehyde for 20 minutes. The cross-linking reaction was stopped by the addition of dry glycine up to the final concentration of 0.5 M. Cells were incubated for 20 min with agitation. The cells were harvested by centrifugation and washed twice with ice-cold TBS (10 mM Tris-HCl pH 7.6, 150 mM NaCl). The cells were lysed and DNA was sheared by sonication to an average size of 200 – 500 bp. Immunoprecipitation was performed using corresponding antibodies and Sera-Mag SpeedBeads Protein A/G Sepharose magnetic beads (GEHealth).
DNA libraries were generated by the Skoltech Genomics Core Facility using Swift Accel-NGS 1S Kit (Swift Biosciences) following the manufacturer’s instructions.
 
Library strategy ChIP-Seq
Library source genomic
Library selection ChIP
Instrument model Illumina HiSeq 4000
 
Description P23-45_40min_input_gp96_1
Replica 1
Data processing The adapters and low-quality sequences were eliminated by the Skoltech Genomics Core Facility.
ChIP-seq reads were aligned to P23-45 genome with the second long terminal repeat ommited ([1...83630] of the GenBank accession OP542242) using bowtie2 (version 2.4.1).
Samtools (version 1.10) software was used to convert .sam files to .bam format and to filter the reads. Filtering was performed using the following parameters: -F 4 (to remove all unmapped reads), -f 2 (to keep only the reads mapped in a proper pair), -q 1 (to skip the alignments with mapQuality < 1).
BedGraph files were generated using MACS2 (version 2.2.7.1) with default settings.
Assembly: GenBank accession OP542242
Supplementary files format and content: bedGraph
 
Submission date Jul 17, 2023
Last update date Dec 12, 2023
Contact name Rob Lavigne
E-mail(s) [email protected]
Organization name KU Leuven
Department Biosystems
Lab Laboratory of Gene Technology
Street address Kasteelpark Arenberg 21
City Leuven
ZIP/Postal code 3001
Country Belgium
 
Platform ID GPL32745
Series (2)
GSE215810 Chromatin immunoprecipitation DNA-sequencing (ChIP-seq) for RNA-polymerases encoded by P23-45 bacteriophage
GSE215812 T. thermophilus infected with phage P23-45
Relations
BioSample SAMN36493577
SRA SRX21046511

Supplementary file Size Download File type/resource
GSM7622273_r1_96-40min_Input.bedGraph.gz 358.6 Kb (ftp)(http) BEDGRAPH
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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