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Sample GSM8595181 Query DataSets for GSM8595181
Status Public on Oct 30, 2024
Title WT L1 0 h (6-4)PP Damage-seq Rep2
Sample type SRA
 
Source name whole-organism
Organism Caenorhabditis elegans
Characteristics cell type: whole-organism
genotype: N2
treatment: UVB 4000 j/m2
antibody: anti-(6-4)PP
time after_uvb: 0
Treatment protocol UVB 4000 J/m2
Growth protocol L1 worms were grown on NGM plates and fed with E. coli bacteria
Extracted molecule genomic DNA
Extraction protocol L1 stage worms were irradiated with 4 kJ/m2 UVB at collected in M9 buffer at indicated repair times. Worms were washed 3 times with M9 buffer and then, genomic DNAs were isolated with QIamp DNA Mini Kit/tissue protocol. Ultrasonic fragmented genomic DNAs were purified using an equal volume of HighPrep PCR beads (MagBio). Purified DNA (~1 µg) was used for end-repair and dA-tailing and adaptor ligation (NEBNext Ultra II DNA Library Prep Kit) following manufacturer’s instructions. Damage-containing DNA fragments were purified with either anti-(6-4)PP (Cosmo Bio, cat. no. CAC-NM-DND-002) or Anti-CPD (Cosmo Bio, cat. no. CAC-NM-DND-001).
The purified DNA was primer extended in the presence of 30 pmol Bio3U (biotin elongation primer, 5′-bio-AGAGTG/dU/GACTGGAGTTCAGACGTGTGCTCTTCCGATCT-3′) using NEBNext Q5 Hot Start HiFi PCR Master Mix. Next, undamaged DNA strands were captured by 20 pmol (2 µL) of SH oligo (SH, Subtractive hybridization, 5′-bio-NNGACTGGTTCCAATTGAAAGTGCTCTTCCG-SpC-3′), DNAs were purified using phenol-chloroform extraction and ethanol precipitation. The DNA was then ligated to a second adaptor ligation using T4 DNA ligase HC (Thermo) at 16 °C overnight. After quality check, the DNA samples were purified with HighPrep PCR beads, and ligated DNAs were PCR amplified by NEBNext Ultra II PCR Master Mix with NEBNext Multiplex Oligos for Illumina (New England Biolabs). The PCR libraries were purified with HighPrep PCR beads. Libraries were sequenced by an Illumina NextSeq2000P2 with 50-bp.
 
Library strategy OTHER
Library source genomic
Library selection other
Instrument model NextSeq 2000
 
Data processing Damage-seq reads were trimmed to remove adaptor sequences by Cutadapt, paired-end reads were aligned with Bowtie with parameters ‐‐nomaqround, ‐‐phred33-quals, -m 4, -X 1000, ‐‐seed123. For each sample, duplicated reads were reduced to a single read. Damage sites were identified as the two nucleotides upstream of each fragment. Using custom scripts, reads were trimmed to the first 4 nucleotides from the 5’ end and slopped 6 nucleotides upstream to generate 10 nucleotide-long genomic regions with the damaged nucleotide in the middle.
Assembly: Caenorhabditis elegans (ce11)
Supplementary files format and content: stranded bedGraph
 
Submission date Oct 25, 2024
Last update date Oct 30, 2024
Contact name Cansu Kose
E-mail(s) cansuk@live.unc.edu
Organization name UNC-Chapel Hill
Department Biochemistry and Biophysics
Lab Sancar Lab
Street address 120 Mason Farm Rd.
City Chapel Hill
State/province NC
ZIP/Postal code 27599
Country USA
 
Platform ID GPL32326
Series (1)
GSE280347 (6-4)PP and CPD Damage-seq data for L1 stage wildtype, csb-1 and xpc-1 C.elegans
Relations
BioSample SAMN44459240
SRA SRX26506036

Supplementary file Size Download File type/resource
GSM8595181_R2WTL1640h_minus_sorted.bedGraph.gz 48.0 Mb (ftp)(http) BEDGRAPH
GSM8595181_R2WTL1640h_plus_sorted.bedGraph.gz 48.3 Mb (ftp)(http) BEDGRAPH
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