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  <EXPERIMENT alias="GSM1634684" accession="SRX957556" center_name="GEO">
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      <SUBMITTER_ID namespace="GEO">GSM1634684</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>GSM1634684: leo1_H3K9me2 rep1; Schizosaccharomyces pombe; ChIP-Seq</TITLE>
    <STUDY_REF accession="SRP056209" refname="GSE66939">
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        <PRIMARY_ID>SRP056209</PRIMARY_ID>
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        <LIBRARY_SELECTION>ChIP</LIBRARY_SELECTION>
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          <SINGLE/>
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        <LIBRARY_CONSTRUCTION_PROTOCOL>Immunoprecipitation was done using indicated antibody from chromatin extracts prepared from mid-logarithmic phase cells. Briefly, cells were fixed in 1% formaldehyde for 30 minutes, quenched with 125 mM glycine, and washed twice in PBS. Cells were resuspended in lysis buffer (0.1% SDS, 50 mM Hepes-KOH, 1 % Triton X-100, 0.1 % sodium deoxucholate, 1 mM EDTA and 150 mM NaCl) and lysed with glass beads in a FastPrep homogenizer. The lysate was sonicated and soluble chromatin fragments with an average size of 300 bp were collected. Chromatin was immunoprecipitated with indicated antibody and protein A magnetic beads overnight. The beads were washed. With the immunoprecipitate still on the beads, the DNA was polished, A-tailed, and ligated to an Illumina sequencing library adaptor. Digestion lambda exonuclease (final concentration 2.5U/reaction) removed nucleotides from 5′ ends of double-stranded DNA until blocked by the formaldehyde induced protein-DNA crosslink. The crosslinks were reversed (4h at 65°C) and DNA was eluted from the beads. The single-stranded DNA was subsequently made double-stranded by primer annealing and extension. A second sequencing adaptor was ligated. Using indexing primers, the fragments were PCR amplified and gel purified (Qiagen MinElute). Samples were quantified on using Qubit (HS dsDNA).</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
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      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2000</INSTRUMENT_MODEL>
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          <LABEL>GEO Sample GSM1634684</LABEL>
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      <PRIMARY_ID>SRX957557</PRIMARY_ID>
      <SUBMITTER_ID namespace="GEO">GSM1634685</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>GSM1634685: leo1_H3K9me2 rep2; Schizosaccharomyces pombe; ChIP-Seq</TITLE>
    <STUDY_REF accession="SRP056209" refname="GSE66939">
      <IDENTIFIERS>
        <PRIMARY_ID>SRP056209</PRIMARY_ID>
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          <PRIMARY_ID>SRS874887</PRIMARY_ID>
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        <LIBRARY_STRATEGY>ChIP-Seq</LIBRARY_STRATEGY>
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        <LIBRARY_SELECTION>ChIP</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
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        <LIBRARY_CONSTRUCTION_PROTOCOL>Immunoprecipitation was done using indicated antibody from chromatin extracts prepared from mid-logarithmic phase cells. Briefly, cells were fixed in 1% formaldehyde for 30 minutes, quenched with 125 mM glycine, and washed twice in PBS. Cells were resuspended in lysis buffer (0.1% SDS, 50 mM Hepes-KOH, 1 % Triton X-100, 0.1 % sodium deoxucholate, 1 mM EDTA and 150 mM NaCl) and lysed with glass beads in a FastPrep homogenizer. The lysate was sonicated and soluble chromatin fragments with an average size of 300 bp were collected. Chromatin was immunoprecipitated with indicated antibody and protein A magnetic beads overnight. The beads were washed. With the immunoprecipitate still on the beads, the DNA was polished, A-tailed, and ligated to an Illumina sequencing library adaptor. Digestion lambda exonuclease (final concentration 2.5U/reaction) removed nucleotides from 5′ ends of double-stranded DNA until blocked by the formaldehyde induced protein-DNA crosslink. The crosslinks were reversed (4h at 65°C) and DNA was eluted from the beads. The single-stranded DNA was subsequently made double-stranded by primer annealing and extension. A second sequencing adaptor was ligated. Using indexing primers, the fragments were PCR amplified and gel purified (Qiagen MinElute). Samples were quantified on using Qubit (HS dsDNA).</LIBRARY_CONSTRUCTION_PROTOCOL>
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    </DESIGN>
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      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2000</INSTRUMENT_MODEL>
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          <LABEL>GEO Sample GSM1634685</LABEL>
          <URL>http://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSM1634685</URL>
        </URL_LINK>
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          <ID>301634685</ID>
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  <EXPERIMENT alias="GSM1634686" accession="SRX957558" center_name="GEO">
    <IDENTIFIERS>
      <PRIMARY_ID>SRX957558</PRIMARY_ID>
      <SUBMITTER_ID namespace="GEO">GSM1634686</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>GSM1634686: wt_H3K9me2 rep1; Schizosaccharomyces pombe; ChIP-Seq</TITLE>
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      <IDENTIFIERS>
        <PRIMARY_ID>SRP056209</PRIMARY_ID>
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          <PRIMARY_ID>SRS874886</PRIMARY_ID>
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      <LIBRARY_DESCRIPTOR>
        <LIBRARY_STRATEGY>ChIP-Seq</LIBRARY_STRATEGY>
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        <LIBRARY_SELECTION>ChIP</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>Immunoprecipitation was done using indicated antibody from chromatin extracts prepared from mid-logarithmic phase cells. Briefly, cells were fixed in 1% formaldehyde for 30 minutes, quenched with 125 mM glycine, and washed twice in PBS. Cells were resuspended in lysis buffer (0.1% SDS, 50 mM Hepes-KOH, 1 % Triton X-100, 0.1 % sodium deoxucholate, 1 mM EDTA and 150 mM NaCl) and lysed with glass beads in a FastPrep homogenizer. The lysate was sonicated and soluble chromatin fragments with an average size of 300 bp were collected. Chromatin was immunoprecipitated with indicated antibody and protein A magnetic beads overnight. The beads were washed. With the immunoprecipitate still on the beads, the DNA was polished, A-tailed, and ligated to an Illumina sequencing library adaptor. Digestion lambda exonuclease (final concentration 2.5U/reaction) removed nucleotides from 5′ ends of double-stranded DNA until blocked by the formaldehyde induced protein-DNA crosslink. The crosslinks were reversed (4h at 65°C) and DNA was eluted from the beads. The single-stranded DNA was subsequently made double-stranded by primer annealing and extension. A second sequencing adaptor was ligated. Using indexing primers, the fragments were PCR amplified and gel purified (Qiagen MinElute). Samples were quantified on using Qubit (HS dsDNA).</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2000</INSTRUMENT_MODEL>
      </ILLUMINA>
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    <EXPERIMENT_LINKS>
      <EXPERIMENT_LINK>
        <URL_LINK>
          <LABEL>GEO Sample GSM1634686</LABEL>
          <URL>http://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSM1634686</URL>
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          <DB>gds</DB>
          <ID>301634686</ID>
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        <TAG>GEO Accession</TAG>
        <VALUE>GSM1634686</VALUE>
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  <EXPERIMENT alias="GSM1634687" accession="SRX957559" center_name="GEO">
    <IDENTIFIERS>
      <PRIMARY_ID>SRX957559</PRIMARY_ID>
      <SUBMITTER_ID namespace="GEO">GSM1634687</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>GSM1634687: wt_H3K9me2 rep2; Schizosaccharomyces pombe; ChIP-Seq</TITLE>
    <STUDY_REF accession="SRP056209" refname="GSE66939">
      <IDENTIFIERS>
        <PRIMARY_ID>SRP056209</PRIMARY_ID>
      </IDENTIFIERS>
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      <DESIGN_DESCRIPTION/>
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        <IDENTIFIERS>
          <PRIMARY_ID>SRS874885</PRIMARY_ID>
          <EXTERNAL_ID namespace="GEO">GSM1634687</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>Immunoprecipitation was done using indicated antibody from chromatin extracts prepared from mid-logarithmic phase cells. Briefly, cells were fixed in 1% formaldehyde for 30 minutes, quenched with 125 mM glycine, and washed twice in PBS. Cells were resuspended in lysis buffer (0.1% SDS, 50 mM Hepes-KOH, 1 % Triton X-100, 0.1 % sodium deoxucholate, 1 mM EDTA and 150 mM NaCl) and lysed with glass beads in a FastPrep homogenizer. The lysate was sonicated and soluble chromatin fragments with an average size of 300 bp were collected. Chromatin was immunoprecipitated with indicated antibody and protein A magnetic beads overnight. The beads were washed. With the immunoprecipitate still on the beads, the DNA was polished, A-tailed, and ligated to an Illumina sequencing library adaptor. Digestion lambda exonuclease (final concentration 2.5U/reaction) removed nucleotides from 5′ ends of double-stranded DNA until blocked by the formaldehyde induced protein-DNA crosslink. The crosslinks were reversed (4h at 65°C) and DNA was eluted from the beads. The single-stranded DNA was subsequently made double-stranded by primer annealing and extension. A second sequencing adaptor was ligated. Using indexing primers, the fragments were PCR amplified and gel purified (Qiagen MinElute). Samples were quantified on using Qubit (HS dsDNA).</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2000</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_LINKS>
      <EXPERIMENT_LINK>
        <URL_LINK>
          <LABEL>GEO Sample GSM1634687</LABEL>
          <URL>http://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSM1634687</URL>
        </URL_LINK>
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      <EXPERIMENT_LINK>
        <XREF_LINK>
          <DB>gds</DB>
          <ID>301634687</ID>
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