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Sample GSM1447338 Query DataSets for GSM1447338
Status Public on Nov 17, 2014
Title AC individual Anti-DMC1
Sample type SRA
 
Source name Testis
Organism Homo sapiens
Characteristics antibody: Anti-DMC1 Santa Cruz (C-20, sc 8973)
genotype: PRDM9A / PRDM9C
sequencing technique: SSDS
Extracted molecule genomic DNA
Extraction protocol For H3K4me3 CHiP-Seq and DMC1 SSDS protocols, testicular samples were obtained frozen and were directly thawed in 1% paraformaldehyde and gently dissociated. Genomic DNA for whole genome sequencing was extracted from the testicular samples before fixation with the DNeasy Blood and Tissue kit (Qiagen).
DMC1 and H3K4Me3 ChIP were performed as described previously (Smagulova et al., 2011; Khil et al., 2012; Brick et al., 2012) with minor modifications. Sequencing libraries for anti-H3K4Me3 samples were prepared according to manufacturer’s protocol (Illumina) and anti-DMC1 libraries were prepared following the method described in (Khil et al., 2012). For genomic DNA sequencing, DNA was sheared using a Covaris S series (Covaris, MS, USA) focused-ultrasonicator. Standard sequencing library construction was done using enzymes from New England Biolabs according to the protocol provided by Illumina. The PCR amplified library was size selected on a 2% agarose gel to extract the 300 to 500 bp band.
 
Library strategy ChIP-Seq
Library source genomic
Library selection ChIP
Instrument model Illumina HiSeq 2500
 
Data processing Basecalls performed using CASAVA version 1.8
Reads were aligned to the hg19 genome assembly. BWA was used to align genomic DNA and H3K4me3 ChIP-Seq data, while the pipeline described in Khil et al. Genome Res. 2012 was used to align SSDS reads to the genome.
For SSDS DMC1 data, hotspots were called using MACS version 2.0.10 and matched control data. The following MACS arguments were used (--nomodel; --shiftsize: 400; --bw: 1000; -q: 0.1). For the H3K4me3 ChIP-Seq experiment, SICER v1.1 (Zang et al., 2009) was used for peak calling. The following arguments were used (species: hg19; redundancy threshold: 1; window size: 200; fragment size: 200; effective genome fraction: 0.8; gap size: 200; FDR: 0.1).
Genome_build: hg19
Supplementary_files_format_and_content: For each SSDS experiment, the associated BED file contains all ssDNA fragments identified for that sample. The bed file columns are as follows: 1. Chromosome 2. Fragment start 3. Fragment end 4. Read1Quality_Read2Quality 5. ITRLength_microhomologyLength 6. Fragment strand; Peak positions called by MACS or SICER are available on the series record.
 
Submission date Jul 28, 2014
Last update date Feb 09, 2021
Contact name Kevin Brick
E-mail(s) brickkm@mail.nih.gov, kevbrick@gmail.com, brickkm@niddk.nih.gov
Organization name NIDDK
Department GBB
Street address 5/205 Memorial Drive
City Bethesda
State/province MD
ZIP/Postal code 20892
Country USA
 
Platform ID GPL16791
Series (1)
GSE59836 Recombination initiation maps of individual human genomes
Relations
Reanalyzed by GSM5072256
BioSample SAMN02943170
SRA SRX663451

Supplementary file Size Download File type/resource
GSM1447338_AC_SSDS_DMC1_ssDNA_type1.bed.gz 415.0 Mb (ftp)(http) BED
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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