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    <TITLE>GSM2893780: B6 DMC1-ChIP rep1; Mus musculus; ChIP-Seq</TITLE>
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    <TITLE>GSM2893781: B6 DMC1-ChIP rep2; Mus musculus; ChIP-Seq</TITLE>
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    <TITLE>GSM2893782: Ewsr1-CKO DMC1-ChIP rep1; Mus musculus; ChIP-Seq</TITLE>
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    <TITLE>GSM2893783: Ewsr1-CKO DMC1-ChIP rep2; Mus musculus; ChIP-Seq</TITLE>
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    <TITLE>GSM2893784: Ewsr1-CKO DMC1-input; Mus musculus; ChIP-Seq</TITLE>
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    <TITLE>GSM2893785: Prdm9 het DMC1-ChIP rep1; Mus musculus; ChIP-Seq</TITLE>
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    <TITLE>GSM2893788: Prdm9 Set-KO DMC1-ChIP rep1; Mus musculus; ChIP-Seq</TITLE>
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          <PAIRED/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>For H3K4me3 and H3K364me3 ChIP, nuclei were isolated from cells using hypotonic lysis. Nuclei were fixed with 1% formaldehyde, and chromatin was fragmented by Mnase digestion. After high-speed spin soluble chromatin was removed and used for ChIP. For DMC1 ChIP, spermatocytes were isolated and fixed by 1% paraformaldehyde solution. The chromatin was sheared to ~1000 bp by sonication and used for ChIP. H3K4me3 and H3K36me3 ChIP libraries were prepared for sequencing using standard Illumina protocols. For DMC1 library preparation,  DNA was firstly end repaired by incubation with T4 DNA Ligase Reaction Buffer with dNTP, T4 DNA polymerase, Klenow Enzyme and T4 PNK, followed by addition of 3'-A overhangs using Klenow Fragment 3'-5' exo-. After denaturation of DNA , the adapters from TruSeq Nano DNA LD Library Prep Kit (set A, Illumina, FC-121-4001) were ligated with Quick Ligation kit. The libraries then were amplified using PCR Enhancer mix and primer cocktail (Illumina, FC-121-4001) for 12 cycles.</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2500</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_LINKS>
      <EXPERIMENT_LINK>
        <XREF_LINK>
          <DB>gds</DB>
          <ID>302893788</ID>
          <LABEL>GSM2893788</LABEL>
        </XREF_LINK>
      </EXPERIMENT_LINK>
    </EXPERIMENT_LINKS>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>GEO Accession</TAG>
        <VALUE>GSM2893788</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="GSM2893789" accession="SRX3481806">
    <IDENTIFIERS>
      <PRIMARY_ID>SRX3481806</PRIMARY_ID>
      <SUBMITTER_ID namespace="GEO">GSM2893789</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>GSM2893789: Prdm9 Set-KO DMC1-ChIP rep2; Mus musculus; ChIP-Seq</TITLE>
    <STUDY_REF accession="SRP127006" refname="GSE108259">
      <IDENTIFIERS>
        <PRIMARY_ID>SRP127006</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION/>
      <SAMPLE_DESCRIPTOR accession="SRS2767636">
        <IDENTIFIERS>
          <PRIMARY_ID>SRS2767636</PRIMARY_ID>
          <EXTERNAL_ID namespace="GEO">GSM2893789</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_STRATEGY>ChIP-Seq</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>GENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>ChIP</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <PAIRED/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>For H3K4me3 and H3K364me3 ChIP, nuclei were isolated from cells using hypotonic lysis. Nuclei were fixed with 1% formaldehyde, and chromatin was fragmented by Mnase digestion. After high-speed spin soluble chromatin was removed and used for ChIP. For DMC1 ChIP, spermatocytes were isolated and fixed by 1% paraformaldehyde solution. The chromatin was sheared to ~1000 bp by sonication and used for ChIP. H3K4me3 and H3K36me3 ChIP libraries were prepared for sequencing using standard Illumina protocols. For DMC1 library preparation,  DNA was firstly end repaired by incubation with T4 DNA Ligase Reaction Buffer with dNTP, T4 DNA polymerase, Klenow Enzyme and T4 PNK, followed by addition of 3'-A overhangs using Klenow Fragment 3'-5' exo-. After denaturation of DNA , the adapters from TruSeq Nano DNA LD Library Prep Kit (set A, Illumina, FC-121-4001) were ligated with Quick Ligation kit. The libraries then were amplified using PCR Enhancer mix and primer cocktail (Illumina, FC-121-4001) for 12 cycles.</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2500</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_LINKS>
      <EXPERIMENT_LINK>
        <XREF_LINK>
          <DB>gds</DB>
          <ID>302893789</ID>
          <LABEL>GSM2893789</LABEL>
        </XREF_LINK>
      </EXPERIMENT_LINK>
    </EXPERIMENT_LINKS>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>GEO Accession</TAG>
        <VALUE>GSM2893789</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="GSM2893790" accession="SRX3481807">
    <IDENTIFIERS>
      <PRIMARY_ID>SRX3481807</PRIMARY_ID>
      <SUBMITTER_ID namespace="GEO">GSM2893790</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>GSM2893790: Prdm9 Set-KO DMC1-input; Mus musculus; ChIP-Seq</TITLE>
    <STUDY_REF accession="SRP127006" refname="GSE108259">
      <IDENTIFIERS>
        <PRIMARY_ID>SRP127006</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION/>
      <SAMPLE_DESCRIPTOR accession="SRS2767629">
        <IDENTIFIERS>
          <PRIMARY_ID>SRS2767629</PRIMARY_ID>
          <EXTERNAL_ID namespace="GEO">GSM2893790</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_STRATEGY>ChIP-Seq</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>GENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>ChIP</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <PAIRED/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>For H3K4me3 and H3K364me3 ChIP, nuclei were isolated from cells using hypotonic lysis. Nuclei were fixed with 1% formaldehyde, and chromatin was fragmented by Mnase digestion. After high-speed spin soluble chromatin was removed and used for ChIP. For DMC1 ChIP, spermatocytes were isolated and fixed by 1% paraformaldehyde solution. The chromatin was sheared to ~1000 bp by sonication and used for ChIP. H3K4me3 and H3K36me3 ChIP libraries were prepared for sequencing using standard Illumina protocols. For DMC1 library preparation,  DNA was firstly end repaired by incubation with T4 DNA Ligase Reaction Buffer with dNTP, T4 DNA polymerase, Klenow Enzyme and T4 PNK, followed by addition of 3'-A overhangs using Klenow Fragment 3'-5' exo-. After denaturation of DNA , the adapters from TruSeq Nano DNA LD Library Prep Kit (set A, Illumina, FC-121-4001) were ligated with Quick Ligation kit. The libraries then were amplified using PCR Enhancer mix and primer cocktail (Illumina, FC-121-4001) for 12 cycles.</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2500</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_LINKS>
      <EXPERIMENT_LINK>
        <XREF_LINK>
          <DB>gds</DB>
          <ID>302893790</ID>
          <LABEL>GSM2893790</LABEL>
        </XREF_LINK>
      </EXPERIMENT_LINK>
    </EXPERIMENT_LINKS>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>GEO Accession</TAG>
        <VALUE>GSM2893790</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="GSM2893791" accession="SRX3481808">
    <IDENTIFIERS>
      <PRIMARY_ID>SRX3481808</PRIMARY_ID>
      <SUBMITTER_ID namespace="GEO">GSM2893791</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>GSM2893791: Ewsr1-H3K4me3-ChIP rep1; Mus musculus; ChIP-Seq</TITLE>
    <STUDY_REF accession="SRP127006" refname="GSE108259">
      <IDENTIFIERS>
        <PRIMARY_ID>SRP127006</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION/>
      <SAMPLE_DESCRIPTOR accession="SRS2767630">
        <IDENTIFIERS>
          <PRIMARY_ID>SRS2767630</PRIMARY_ID>
          <EXTERNAL_ID namespace="GEO">GSM2893791</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_STRATEGY>ChIP-Seq</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>GENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>ChIP</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>For H3K4me3 and H3K364me3 ChIP, nuclei were isolated from cells using hypotonic lysis. Nuclei were fixed with 1% formaldehyde, and chromatin was fragmented by Mnase digestion. After high-speed spin soluble chromatin was removed and used for ChIP. For DMC1 ChIP, spermatocytes were isolated and fixed by 1% paraformaldehyde solution. The chromatin was sheared to ~1000 bp by sonication and used for ChIP. H3K4me3 and H3K36me3 ChIP libraries were prepared for sequencing using standard Illumina protocols. For DMC1 library preparation,  DNA was firstly end repaired by incubation with T4 DNA Ligase Reaction Buffer with dNTP, T4 DNA polymerase, Klenow Enzyme and T4 PNK, followed by addition of 3'-A overhangs using Klenow Fragment 3'-5' exo-. After denaturation of DNA , the adapters from TruSeq Nano DNA LD Library Prep Kit (set A, Illumina, FC-121-4001) were ligated with Quick Ligation kit. The libraries then were amplified using PCR Enhancer mix and primer cocktail (Illumina, FC-121-4001) for 12 cycles.</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2500</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_LINKS>
      <EXPERIMENT_LINK>
        <XREF_LINK>
          <DB>gds</DB>
          <ID>302893791</ID>
          <LABEL>GSM2893791</LABEL>
        </XREF_LINK>
      </EXPERIMENT_LINK>
    </EXPERIMENT_LINKS>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>GEO Accession</TAG>
        <VALUE>GSM2893791</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="GSM2893792" accession="SRX3481809">
    <IDENTIFIERS>
      <PRIMARY_ID>SRX3481809</PRIMARY_ID>
      <SUBMITTER_ID namespace="GEO">GSM2893792</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>GSM2893792: Ewsr1-H3K4me3-ChIP rep2; Mus musculus; ChIP-Seq</TITLE>
    <STUDY_REF accession="SRP127006" refname="GSE108259">
      <IDENTIFIERS>
        <PRIMARY_ID>SRP127006</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION/>
      <SAMPLE_DESCRIPTOR accession="SRS2767631">
        <IDENTIFIERS>
          <PRIMARY_ID>SRS2767631</PRIMARY_ID>
          <EXTERNAL_ID namespace="GEO">GSM2893792</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_STRATEGY>ChIP-Seq</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>GENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>ChIP</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>For H3K4me3 and H3K364me3 ChIP, nuclei were isolated from cells using hypotonic lysis. Nuclei were fixed with 1% formaldehyde, and chromatin was fragmented by Mnase digestion. After high-speed spin soluble chromatin was removed and used for ChIP. For DMC1 ChIP, spermatocytes were isolated and fixed by 1% paraformaldehyde solution. The chromatin was sheared to ~1000 bp by sonication and used for ChIP. H3K4me3 and H3K36me3 ChIP libraries were prepared for sequencing using standard Illumina protocols. For DMC1 library preparation,  DNA was firstly end repaired by incubation with T4 DNA Ligase Reaction Buffer with dNTP, T4 DNA polymerase, Klenow Enzyme and T4 PNK, followed by addition of 3'-A overhangs using Klenow Fragment 3'-5' exo-. After denaturation of DNA , the adapters from TruSeq Nano DNA LD Library Prep Kit (set A, Illumina, FC-121-4001) were ligated with Quick Ligation kit. The libraries then were amplified using PCR Enhancer mix and primer cocktail (Illumina, FC-121-4001) for 12 cycles.</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2500</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_LINKS>
      <EXPERIMENT_LINK>
        <XREF_LINK>
          <DB>gds</DB>
          <ID>302893792</ID>
          <LABEL>GSM2893792</LABEL>
        </XREF_LINK>
      </EXPERIMENT_LINK>
    </EXPERIMENT_LINKS>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>GEO Accession</TAG>
        <VALUE>GSM2893792</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="GSM2893793" accession="SRX3481810">
    <IDENTIFIERS>
      <PRIMARY_ID>SRX3481810</PRIMARY_ID>
      <SUBMITTER_ID namespace="GEO">GSM2893793</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>GSM2893793: Ewsr1-H3K36me3-ChIP rep1; Mus musculus; ChIP-Seq</TITLE>
    <STUDY_REF accession="SRP127006" refname="GSE108259">
      <IDENTIFIERS>
        <PRIMARY_ID>SRP127006</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION/>
      <SAMPLE_DESCRIPTOR accession="SRS2767632">
        <IDENTIFIERS>
          <PRIMARY_ID>SRS2767632</PRIMARY_ID>
          <EXTERNAL_ID namespace="GEO">GSM2893793</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_STRATEGY>ChIP-Seq</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>GENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>ChIP</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>For H3K4me3 and H3K364me3 ChIP, nuclei were isolated from cells using hypotonic lysis. Nuclei were fixed with 1% formaldehyde, and chromatin was fragmented by Mnase digestion. After high-speed spin soluble chromatin was removed and used for ChIP. For DMC1 ChIP, spermatocytes were isolated and fixed by 1% paraformaldehyde solution. The chromatin was sheared to ~1000 bp by sonication and used for ChIP. H3K4me3 and H3K36me3 ChIP libraries were prepared for sequencing using standard Illumina protocols. For DMC1 library preparation,  DNA was firstly end repaired by incubation with T4 DNA Ligase Reaction Buffer with dNTP, T4 DNA polymerase, Klenow Enzyme and T4 PNK, followed by addition of 3'-A overhangs using Klenow Fragment 3'-5' exo-. After denaturation of DNA , the adapters from TruSeq Nano DNA LD Library Prep Kit (set A, Illumina, FC-121-4001) were ligated with Quick Ligation kit. The libraries then were amplified using PCR Enhancer mix and primer cocktail (Illumina, FC-121-4001) for 12 cycles.</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2500</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_LINKS>
      <EXPERIMENT_LINK>
        <XREF_LINK>
          <DB>gds</DB>
          <ID>302893793</ID>
          <LABEL>GSM2893793</LABEL>
        </XREF_LINK>
      </EXPERIMENT_LINK>
    </EXPERIMENT_LINKS>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>GEO Accession</TAG>
        <VALUE>GSM2893793</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="GSM2893794" accession="SRX3481811">
    <IDENTIFIERS>
      <PRIMARY_ID>SRX3481811</PRIMARY_ID>
      <SUBMITTER_ID namespace="GEO">GSM2893794</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>GSM2893794: Ewsr1-H3K36me3-ChIP rep2; Mus musculus; ChIP-Seq</TITLE>
    <STUDY_REF accession="SRP127006" refname="GSE108259">
      <IDENTIFIERS>
        <PRIMARY_ID>SRP127006</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION/>
      <SAMPLE_DESCRIPTOR accession="SRS2767633">
        <IDENTIFIERS>
          <PRIMARY_ID>SRS2767633</PRIMARY_ID>
          <EXTERNAL_ID namespace="GEO">GSM2893794</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_STRATEGY>ChIP-Seq</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>GENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>ChIP</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>For H3K4me3 and H3K364me3 ChIP, nuclei were isolated from cells using hypotonic lysis. Nuclei were fixed with 1% formaldehyde, and chromatin was fragmented by Mnase digestion. After high-speed spin soluble chromatin was removed and used for ChIP. For DMC1 ChIP, spermatocytes were isolated and fixed by 1% paraformaldehyde solution. The chromatin was sheared to ~1000 bp by sonication and used for ChIP. H3K4me3 and H3K36me3 ChIP libraries were prepared for sequencing using standard Illumina protocols. For DMC1 library preparation,  DNA was firstly end repaired by incubation with T4 DNA Ligase Reaction Buffer with dNTP, T4 DNA polymerase, Klenow Enzyme and T4 PNK, followed by addition of 3'-A overhangs using Klenow Fragment 3'-5' exo-. After denaturation of DNA , the adapters from TruSeq Nano DNA LD Library Prep Kit (set A, Illumina, FC-121-4001) were ligated with Quick Ligation kit. The libraries then were amplified using PCR Enhancer mix and primer cocktail (Illumina, FC-121-4001) for 12 cycles.</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2500</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_LINKS>
      <EXPERIMENT_LINK>
        <XREF_LINK>
          <DB>gds</DB>
          <ID>302893794</ID>
          <LABEL>GSM2893794</LABEL>
        </XREF_LINK>
      </EXPERIMENT_LINK>
    </EXPERIMENT_LINKS>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>GEO Accession</TAG>
        <VALUE>GSM2893794</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="GSM2893795" accession="SRX3481812">
    <IDENTIFIERS>
      <PRIMARY_ID>SRX3481812</PRIMARY_ID>
      <SUBMITTER_ID namespace="GEO">GSM2893795</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>GSM2893795: Ewsr1-H3K36me3-input; Mus musculus; ChIP-Seq</TITLE>
    <STUDY_REF accession="SRP127006" refname="GSE108259">
      <IDENTIFIERS>
        <PRIMARY_ID>SRP127006</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION/>
      <SAMPLE_DESCRIPTOR accession="SRS2767634">
        <IDENTIFIERS>
          <PRIMARY_ID>SRS2767634</PRIMARY_ID>
          <EXTERNAL_ID namespace="GEO">GSM2893795</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_STRATEGY>ChIP-Seq</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>GENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>ChIP</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>For H3K4me3 and H3K364me3 ChIP, nuclei were isolated from cells using hypotonic lysis. Nuclei were fixed with 1% formaldehyde, and chromatin was fragmented by Mnase digestion. After high-speed spin soluble chromatin was removed and used for ChIP. For DMC1 ChIP, spermatocytes were isolated and fixed by 1% paraformaldehyde solution. The chromatin was sheared to ~1000 bp by sonication and used for ChIP. H3K4me3 and H3K36me3 ChIP libraries were prepared for sequencing using standard Illumina protocols. For DMC1 library preparation,  DNA was firstly end repaired by incubation with T4 DNA Ligase Reaction Buffer with dNTP, T4 DNA polymerase, Klenow Enzyme and T4 PNK, followed by addition of 3'-A overhangs using Klenow Fragment 3'-5' exo-. After denaturation of DNA , the adapters from TruSeq Nano DNA LD Library Prep Kit (set A, Illumina, FC-121-4001) were ligated with Quick Ligation kit. The libraries then were amplified using PCR Enhancer mix and primer cocktail (Illumina, FC-121-4001) for 12 cycles.</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2500</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_LINKS>
      <EXPERIMENT_LINK>
        <XREF_LINK>
          <DB>gds</DB>
          <ID>302893795</ID>
          <LABEL>GSM2893795</LABEL>
        </XREF_LINK>
      </EXPERIMENT_LINK>
    </EXPERIMENT_LINKS>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>GEO Accession</TAG>
        <VALUE>GSM2893795</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="GSM2893796" accession="SRX3481813">
    <IDENTIFIERS>
      <PRIMARY_ID>SRX3481813</PRIMARY_ID>
      <SUBMITTER_ID namespace="GEO">GSM2893796</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>GSM2893796: Prdm9 Set-KO H3K4me3-ChIP; Mus musculus; ChIP-Seq</TITLE>
    <STUDY_REF accession="SRP127006" refname="GSE108259">
      <IDENTIFIERS>
        <PRIMARY_ID>SRP127006</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION/>
      <SAMPLE_DESCRIPTOR accession="SRS2767635">
        <IDENTIFIERS>
          <PRIMARY_ID>SRS2767635</PRIMARY_ID>
          <EXTERNAL_ID namespace="GEO">GSM2893796</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_STRATEGY>ChIP-Seq</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>GENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>ChIP</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>For H3K4me3 and H3K364me3 ChIP, nuclei were isolated from cells using hypotonic lysis. Nuclei were fixed with 1% formaldehyde, and chromatin was fragmented by Mnase digestion. After high-speed spin soluble chromatin was removed and used for ChIP. For DMC1 ChIP, spermatocytes were isolated and fixed by 1% paraformaldehyde solution. The chromatin was sheared to ~1000 bp by sonication and used for ChIP. H3K4me3 and H3K36me3 ChIP libraries were prepared for sequencing using standard Illumina protocols. For DMC1 library preparation,  DNA was firstly end repaired by incubation with T4 DNA Ligase Reaction Buffer with dNTP, T4 DNA polymerase, Klenow Enzyme and T4 PNK, followed by addition of 3'-A overhangs using Klenow Fragment 3'-5' exo-. After denaturation of DNA , the adapters from TruSeq Nano DNA LD Library Prep Kit (set A, Illumina, FC-121-4001) were ligated with Quick Ligation kit. The libraries then were amplified using PCR Enhancer mix and primer cocktail (Illumina, FC-121-4001) for 12 cycles.</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2500</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_LINKS>
      <EXPERIMENT_LINK>
        <XREF_LINK>
          <DB>gds</DB>
          <ID>302893796</ID>
          <LABEL>GSM2893796</LABEL>
        </XREF_LINK>
      </EXPERIMENT_LINK>
    </EXPERIMENT_LINKS>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>GEO Accession</TAG>
        <VALUE>GSM2893796</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="GSM2893797" accession="SRX3481814">
    <IDENTIFIERS>
      <PRIMARY_ID>SRX3481814</PRIMARY_ID>
      <SUBMITTER_ID namespace="GEO">GSM2893797</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>GSM2893797: Prdm9 Set-KO H3K4me3-input; Mus musculus; ChIP-Seq</TITLE>
    <STUDY_REF accession="SRP127006" refname="GSE108259">
      <IDENTIFIERS>
        <PRIMARY_ID>SRP127006</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION/>
      <SAMPLE_DESCRIPTOR accession="SRS2767637">
        <IDENTIFIERS>
          <PRIMARY_ID>SRS2767637</PRIMARY_ID>
          <EXTERNAL_ID namespace="GEO">GSM2893797</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_STRATEGY>ChIP-Seq</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>GENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>ChIP</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>For H3K4me3 and H3K364me3 ChIP, nuclei were isolated from cells using hypotonic lysis. Nuclei were fixed with 1% formaldehyde, and chromatin was fragmented by Mnase digestion. After high-speed spin soluble chromatin was removed and used for ChIP. For DMC1 ChIP, spermatocytes were isolated and fixed by 1% paraformaldehyde solution. The chromatin was sheared to ~1000 bp by sonication and used for ChIP. H3K4me3 and H3K36me3 ChIP libraries were prepared for sequencing using standard Illumina protocols. For DMC1 library preparation,  DNA was firstly end repaired by incubation with T4 DNA Ligase Reaction Buffer with dNTP, T4 DNA polymerase, Klenow Enzyme and T4 PNK, followed by addition of 3'-A overhangs using Klenow Fragment 3'-5' exo-. After denaturation of DNA , the adapters from TruSeq Nano DNA LD Library Prep Kit (set A, Illumina, FC-121-4001) were ligated with Quick Ligation kit. The libraries then were amplified using PCR Enhancer mix and primer cocktail (Illumina, FC-121-4001) for 12 cycles.</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2500</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_LINKS>
      <EXPERIMENT_LINK>
        <XREF_LINK>
          <DB>gds</DB>
          <ID>302893797</ID>
          <LABEL>GSM2893797</LABEL>
        </XREF_LINK>
      </EXPERIMENT_LINK>
    </EXPERIMENT_LINKS>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>GEO Accession</TAG>
        <VALUE>GSM2893797</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
</EXPERIMENT_SET>
