<?xml version="1.0" encoding="UTF-8"?>
<EXPERIMENT_SET xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <EXPERIMENT xmlns:com="SRA.common" center_name="UNIVERSITY OF MANCHESTER" alias="E-MTAB-3868:CB11130_A" broker_name="ArrayExpress" accession="ERX1092055">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1092055</PRIMARY_ID>
      <SUBMITTER_ID namespace="UNIVERSITY OF MANCHESTER">E-MTAB-3868:CB11130_A</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868:CB11130_A</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2500 paired end sequencing; ATAC-seq of BMP response in glioblastoma-derived neural stem cells</TITLE>
    <STUDY_REF refcenter="University of Manchester" refname="E-MTAB-3868" accession="ERP012006">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP012006</PRIMARY_ID>
        <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868</SUBMITTER_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>ATAC-seq of BMP response in glioblastoma-derived neural stem cells</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR refname="E-MTAB-3868:CB11130_A" accession="ERS839181" refcenter="University of Manchester">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS839181</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA3532032</EXTERNAL_ID>
          <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868:CB11130_A</SUBMITTER_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>CB11130_A</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>GENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <PAIRED NOMINAL_SDEV="92" NOMINAL_LENGTH="128"/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>GNS and NS cells were cultured using serum-free basal media supplemented with B27 and N2 culture supplements (Life Technologies). Growth factors EGF and FGF-2 (20 ng/ml) were added. Culture vessels were coated with Laminin (Sigma) for 3 hr at 10 ug/ml prior to use. Alternatively media was directly supplemented with 1 ug/ml Laminin. GNS cells were routinely grown to confluence, dissociated using Accutase (Sigma), and then split 1:3 to 1:7. Medium was replaced every 3-7 days. GNS and NS cells were split as appropriate to maintain a plating density of ~10 cells/mm2; differentiating cells were maintained in media supplemented with bone morphogenic protein (BMP) without EGF and FGF-2. After 8 daysâ treatment cells were harvested, counted and pelleted in aliquots of 50,000 cells. Cells were lysed and the nuclei were pelleted then suspended in buffer and treated with Tn5 transposase for 30 min. ATAC library preparation was undertaken according to published protocols (Buenrostro et al. 2013, Nat Methods 10:1213-8). DNA was purified using Qiagen MinElute columns, followed by 12 cycles of PCR amplification using NEBNext High Fidelity Master Mix and custom primers, with adapter sequences previously specified for ATAC-seq (Buenrostro et al., 2013), followed by further purification on MinElute columns.</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
      <SPOT_DESCRIPTOR>
        <SPOT_DECODE_SPEC>
          <SPOT_LENGTH>100</SPOT_LENGTH>
          <READ_SPEC>
            <READ_INDEX>0</READ_INDEX>
            <READ_LABEL>F</READ_LABEL>
            <READ_CLASS>Application Read</READ_CLASS>
            <READ_TYPE>Forward</READ_TYPE>
            <BASE_COORD>1</BASE_COORD>
          </READ_SPEC>
          <READ_SPEC>
            <READ_INDEX>1</READ_INDEX>
            <READ_LABEL>R</READ_LABEL>
            <READ_CLASS>Application Read</READ_CLASS>
            <READ_TYPE>Reverse</READ_TYPE>
            <BASE_COORD>51</BASE_COORD>
          </READ_SPEC>
        </SPOT_DECODE_SPEC>
      </SPOT_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2500</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
  </EXPERIMENT>
  <EXPERIMENT xmlns:com="SRA.common" center_name="UNIVERSITY OF MANCHESTER" alias="E-MTAB-3868:CB11130_B" broker_name="ArrayExpress" accession="ERX1092056">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1092056</PRIMARY_ID>
      <SUBMITTER_ID namespace="UNIVERSITY OF MANCHESTER">E-MTAB-3868:CB11130_B</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868:CB11130_B</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2500 paired end sequencing; ATAC-seq of BMP response in glioblastoma-derived neural stem cells</TITLE>
    <STUDY_REF refcenter="University of Manchester" refname="E-MTAB-3868" accession="ERP012006">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP012006</PRIMARY_ID>
        <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868</SUBMITTER_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>ATAC-seq of BMP response in glioblastoma-derived neural stem cells</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR refname="E-MTAB-3868:CB11130_B" accession="ERS839182" refcenter="University of Manchester">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS839182</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA3532033</EXTERNAL_ID>
          <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868:CB11130_B</SUBMITTER_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>CB11130_B</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>GENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <PAIRED NOMINAL_SDEV="97" NOMINAL_LENGTH="135"/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>GNS and NS cells were cultured using serum-free basal media supplemented with B27 and N2 culture supplements (Life Technologies). Growth factors EGF and FGF-2 (20 ng/ml) were added. Culture vessels were coated with Laminin (Sigma) for 3 hr at 10 ug/ml prior to use. Alternatively media was directly supplemented with 1 ug/ml Laminin. GNS cells were routinely grown to confluence, dissociated using Accutase (Sigma), and then split 1:3 to 1:7. Medium was replaced every 3-7 days. GNS and NS cells were split as appropriate to maintain a plating density of ~10 cells/mm2; differentiating cells were maintained in media supplemented with bone morphogenic protein (BMP) without EGF and FGF-2. After 8 daysâ treatment cells were harvested, counted and pelleted in aliquots of 50,000 cells. Cells were lysed and the nuclei were pelleted then suspended in buffer and treated with Tn5 transposase for 30 min. ATAC library preparation was undertaken according to published protocols (Buenrostro et al. 2013, Nat Methods 10:1213-8). DNA was purified using Qiagen MinElute columns, followed by 12 cycles of PCR amplification using NEBNext High Fidelity Master Mix and custom primers, with adapter sequences previously specified for ATAC-seq (Buenrostro et al., 2013), followed by further purification on MinElute columns.</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
      <SPOT_DESCRIPTOR>
        <SPOT_DECODE_SPEC>
          <SPOT_LENGTH>100</SPOT_LENGTH>
          <READ_SPEC>
            <READ_INDEX>0</READ_INDEX>
            <READ_LABEL>F</READ_LABEL>
            <READ_CLASS>Application Read</READ_CLASS>
            <READ_TYPE>Forward</READ_TYPE>
            <BASE_COORD>1</BASE_COORD>
          </READ_SPEC>
          <READ_SPEC>
            <READ_INDEX>1</READ_INDEX>
            <READ_LABEL>R</READ_LABEL>
            <READ_CLASS>Application Read</READ_CLASS>
            <READ_TYPE>Reverse</READ_TYPE>
            <BASE_COORD>51</BASE_COORD>
          </READ_SPEC>
        </SPOT_DECODE_SPEC>
      </SPOT_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2500</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
  </EXPERIMENT>
  <EXPERIMENT xmlns:com="SRA.common" center_name="UNIVERSITY OF MANCHESTER" alias="E-MTAB-3868:CB11130_BMP_A" broker_name="ArrayExpress" accession="ERX1092057">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1092057</PRIMARY_ID>
      <SUBMITTER_ID namespace="UNIVERSITY OF MANCHESTER">E-MTAB-3868:CB11130_BMP_A</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868:CB11130_BMP_A</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2500 paired end sequencing; ATAC-seq of BMP response in glioblastoma-derived neural stem cells</TITLE>
    <STUDY_REF refcenter="University of Manchester" refname="E-MTAB-3868" accession="ERP012006">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP012006</PRIMARY_ID>
        <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868</SUBMITTER_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>ATAC-seq of BMP response in glioblastoma-derived neural stem cells</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR refname="E-MTAB-3868:CB11130_BMP_A" accession="ERS839183" refcenter="University of Manchester">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS839183</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA3532034</EXTERNAL_ID>
          <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868:CB11130_BMP_A</SUBMITTER_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>CB11130_BMP_A</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>GENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <PAIRED NOMINAL_SDEV="96" NOMINAL_LENGTH="132"/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>GNS and NS cells were cultured using serum-free basal media supplemented with B27 and N2 culture supplements (Life Technologies). Growth factors EGF and FGF-2 (20 ng/ml) were added. Culture vessels were coated with Laminin (Sigma) for 3 hr at 10 ug/ml prior to use. Alternatively media was directly supplemented with 1 ug/ml Laminin. GNS cells were routinely grown to confluence, dissociated using Accutase (Sigma), and then split 1:3 to 1:7. Medium was replaced every 3-7 days. GNS and NS cells were split as appropriate to maintain a plating density of ~10 cells/mm2; differentiating cells were maintained in media supplemented with bone morphogenic protein (BMP) without EGF and FGF-2. After 8 daysâ treatment cells were harvested, counted and pelleted in aliquots of 50,000 cells. Cells were lysed and the nuclei were pelleted then suspended in buffer and treated with Tn5 transposase for 30 min. ATAC library preparation was undertaken according to published protocols (Buenrostro et al. 2013, Nat Methods 10:1213-8). DNA was purified using Qiagen MinElute columns, followed by 12 cycles of PCR amplification using NEBNext High Fidelity Master Mix and custom primers, with adapter sequences previously specified for ATAC-seq (Buenrostro et al., 2013), followed by further purification on MinElute columns.</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
      <SPOT_DESCRIPTOR>
        <SPOT_DECODE_SPEC>
          <SPOT_LENGTH>100</SPOT_LENGTH>
          <READ_SPEC>
            <READ_INDEX>0</READ_INDEX>
            <READ_LABEL>F</READ_LABEL>
            <READ_CLASS>Application Read</READ_CLASS>
            <READ_TYPE>Forward</READ_TYPE>
            <BASE_COORD>1</BASE_COORD>
          </READ_SPEC>
          <READ_SPEC>
            <READ_INDEX>1</READ_INDEX>
            <READ_LABEL>R</READ_LABEL>
            <READ_CLASS>Application Read</READ_CLASS>
            <READ_TYPE>Reverse</READ_TYPE>
            <BASE_COORD>51</BASE_COORD>
          </READ_SPEC>
        </SPOT_DECODE_SPEC>
      </SPOT_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2500</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>Experimental Factor: bone morphogenic protein</TAG>
        <VALUE>stimulus</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT xmlns:com="SRA.common" center_name="UNIVERSITY OF MANCHESTER" alias="E-MTAB-3868:CB11130_BMP_B" broker_name="ArrayExpress" accession="ERX1092058">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1092058</PRIMARY_ID>
      <SUBMITTER_ID namespace="UNIVERSITY OF MANCHESTER">E-MTAB-3868:CB11130_BMP_B</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868:CB11130_BMP_B</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2500 paired end sequencing; ATAC-seq of BMP response in glioblastoma-derived neural stem cells</TITLE>
    <STUDY_REF refcenter="University of Manchester" refname="E-MTAB-3868" accession="ERP012006">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP012006</PRIMARY_ID>
        <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868</SUBMITTER_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>ATAC-seq of BMP response in glioblastoma-derived neural stem cells</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR refname="E-MTAB-3868:CB11130_BMP_B" accession="ERS839184" refcenter="University of Manchester">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS839184</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA3532035</EXTERNAL_ID>
          <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868:CB11130_BMP_B</SUBMITTER_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>CB11130_BMP_B</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>GENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <PAIRED NOMINAL_SDEV="86" NOMINAL_LENGTH="123"/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>GNS and NS cells were cultured using serum-free basal media supplemented with B27 and N2 culture supplements (Life Technologies). Growth factors EGF and FGF-2 (20 ng/ml) were added. Culture vessels were coated with Laminin (Sigma) for 3 hr at 10 ug/ml prior to use. Alternatively media was directly supplemented with 1 ug/ml Laminin. GNS cells were routinely grown to confluence, dissociated using Accutase (Sigma), and then split 1:3 to 1:7. Medium was replaced every 3-7 days. GNS and NS cells were split as appropriate to maintain a plating density of ~10 cells/mm2; differentiating cells were maintained in media supplemented with bone morphogenic protein (BMP) without EGF and FGF-2. After 8 daysâ treatment cells were harvested, counted and pelleted in aliquots of 50,000 cells. Cells were lysed and the nuclei were pelleted then suspended in buffer and treated with Tn5 transposase for 30 min. ATAC library preparation was undertaken according to published protocols (Buenrostro et al. 2013, Nat Methods 10:1213-8). DNA was purified using Qiagen MinElute columns, followed by 12 cycles of PCR amplification using NEBNext High Fidelity Master Mix and custom primers, with adapter sequences previously specified for ATAC-seq (Buenrostro et al., 2013), followed by further purification on MinElute columns.</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
      <SPOT_DESCRIPTOR>
        <SPOT_DECODE_SPEC>
          <SPOT_LENGTH>100</SPOT_LENGTH>
          <READ_SPEC>
            <READ_INDEX>0</READ_INDEX>
            <READ_LABEL>F</READ_LABEL>
            <READ_CLASS>Application Read</READ_CLASS>
            <READ_TYPE>Forward</READ_TYPE>
            <BASE_COORD>1</BASE_COORD>
          </READ_SPEC>
          <READ_SPEC>
            <READ_INDEX>1</READ_INDEX>
            <READ_LABEL>R</READ_LABEL>
            <READ_CLASS>Application Read</READ_CLASS>
            <READ_TYPE>Reverse</READ_TYPE>
            <BASE_COORD>51</BASE_COORD>
          </READ_SPEC>
        </SPOT_DECODE_SPEC>
      </SPOT_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2500</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>Experimental Factor: bone morphogenic protein</TAG>
        <VALUE>stimulus</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT xmlns:com="SRA.common" center_name="UNIVERSITY OF MANCHESTER" alias="E-MTAB-3868:G26_A" broker_name="ArrayExpress" accession="ERX1092059">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1092059</PRIMARY_ID>
      <SUBMITTER_ID namespace="UNIVERSITY OF MANCHESTER">E-MTAB-3868:G26_A</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868:G26_A</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2500 paired end sequencing; ATAC-seq of BMP response in glioblastoma-derived neural stem cells</TITLE>
    <STUDY_REF refcenter="University of Manchester" refname="E-MTAB-3868" accession="ERP012006">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP012006</PRIMARY_ID>
        <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868</SUBMITTER_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>ATAC-seq of BMP response in glioblastoma-derived neural stem cells</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR refname="E-MTAB-3868:G26_A" accession="ERS839185" refcenter="University of Manchester">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS839185</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA3532036</EXTERNAL_ID>
          <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868:G26_A</SUBMITTER_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>G26_A</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>GENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <PAIRED NOMINAL_SDEV="97" NOMINAL_LENGTH="138"/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>GNS and NS cells were cultured using serum-free basal media supplemented with B27 and N2 culture supplements (Life Technologies). Growth factors EGF and FGF-2 (20 ng/ml) were added. Culture vessels were coated with Laminin (Sigma) for 3 hr at 10 ug/ml prior to use. Alternatively media was directly supplemented with 1 ug/ml Laminin. GNS cells were routinely grown to confluence, dissociated using Accutase (Sigma), and then split 1:3 to 1:7. Medium was replaced every 3-7 days. GNS and NS cells were split as appropriate to maintain a plating density of ~10 cells/mm2; differentiating cells were maintained in media supplemented with bone morphogenic protein (BMP) without EGF and FGF-2. After 8 daysâ treatment cells were harvested, counted and pelleted in aliquots of 50,000 cells. Cells were lysed and the nuclei were pelleted then suspended in buffer and treated with Tn5 transposase for 30 min. ATAC library preparation was undertaken according to published protocols (Buenrostro et al. 2013, Nat Methods 10:1213-8). DNA was purified using Qiagen MinElute columns, followed by 12 cycles of PCR amplification using NEBNext High Fidelity Master Mix and custom primers, with adapter sequences previously specified for ATAC-seq (Buenrostro et al., 2013), followed by further purification on MinElute columns.</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
      <SPOT_DESCRIPTOR>
        <SPOT_DECODE_SPEC>
          <SPOT_LENGTH>100</SPOT_LENGTH>
          <READ_SPEC>
            <READ_INDEX>0</READ_INDEX>
            <READ_LABEL>F</READ_LABEL>
            <READ_CLASS>Application Read</READ_CLASS>
            <READ_TYPE>Forward</READ_TYPE>
            <BASE_COORD>1</BASE_COORD>
          </READ_SPEC>
          <READ_SPEC>
            <READ_INDEX>1</READ_INDEX>
            <READ_LABEL>R</READ_LABEL>
            <READ_CLASS>Application Read</READ_CLASS>
            <READ_TYPE>Reverse</READ_TYPE>
            <BASE_COORD>51</BASE_COORD>
          </READ_SPEC>
        </SPOT_DECODE_SPEC>
      </SPOT_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2500</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>Experimental Factor: glioblastoma multiforme</TAG>
        <VALUE>disease</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT xmlns:com="SRA.common" center_name="UNIVERSITY OF MANCHESTER" alias="E-MTAB-3868:G26_B" broker_name="ArrayExpress" accession="ERX1092060">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1092060</PRIMARY_ID>
      <SUBMITTER_ID namespace="UNIVERSITY OF MANCHESTER">E-MTAB-3868:G26_B</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868:G26_B</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2500 paired end sequencing; ATAC-seq of BMP response in glioblastoma-derived neural stem cells</TITLE>
    <STUDY_REF refcenter="University of Manchester" refname="E-MTAB-3868" accession="ERP012006">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP012006</PRIMARY_ID>
        <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868</SUBMITTER_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>ATAC-seq of BMP response in glioblastoma-derived neural stem cells</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR refname="E-MTAB-3868:G26_B" accession="ERS839186" refcenter="University of Manchester">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS839186</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA3532037</EXTERNAL_ID>
          <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868:G26_B</SUBMITTER_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>G26_B</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>GENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <PAIRED NOMINAL_SDEV="111" NOMINAL_LENGTH="152"/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>GNS and NS cells were cultured using serum-free basal media supplemented with B27 and N2 culture supplements (Life Technologies). Growth factors EGF and FGF-2 (20 ng/ml) were added. Culture vessels were coated with Laminin (Sigma) for 3 hr at 10 ug/ml prior to use. Alternatively media was directly supplemented with 1 ug/ml Laminin. GNS cells were routinely grown to confluence, dissociated using Accutase (Sigma), and then split 1:3 to 1:7. Medium was replaced every 3-7 days. GNS and NS cells were split as appropriate to maintain a plating density of ~10 cells/mm2; differentiating cells were maintained in media supplemented with bone morphogenic protein (BMP) without EGF and FGF-2. After 8 daysâ treatment cells were harvested, counted and pelleted in aliquots of 50,000 cells. Cells were lysed and the nuclei were pelleted then suspended in buffer and treated with Tn5 transposase for 30 min. ATAC library preparation was undertaken according to published protocols (Buenrostro et al. 2013, Nat Methods 10:1213-8). DNA was purified using Qiagen MinElute columns, followed by 12 cycles of PCR amplification using NEBNext High Fidelity Master Mix and custom primers, with adapter sequences previously specified for ATAC-seq (Buenrostro et al., 2013), followed by further purification on MinElute columns.</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
      <SPOT_DESCRIPTOR>
        <SPOT_DECODE_SPEC>
          <SPOT_LENGTH>100</SPOT_LENGTH>
          <READ_SPEC>
            <READ_INDEX>0</READ_INDEX>
            <READ_LABEL>F</READ_LABEL>
            <READ_CLASS>Application Read</READ_CLASS>
            <READ_TYPE>Forward</READ_TYPE>
            <BASE_COORD>1</BASE_COORD>
          </READ_SPEC>
          <READ_SPEC>
            <READ_INDEX>1</READ_INDEX>
            <READ_LABEL>R</READ_LABEL>
            <READ_CLASS>Application Read</READ_CLASS>
            <READ_TYPE>Reverse</READ_TYPE>
            <BASE_COORD>51</BASE_COORD>
          </READ_SPEC>
        </SPOT_DECODE_SPEC>
      </SPOT_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2500</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>Experimental Factor: glioblastoma multiforme</TAG>
        <VALUE>disease</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT xmlns:com="SRA.common" center_name="UNIVERSITY OF MANCHESTER" alias="E-MTAB-3868:G26_BMP_A" broker_name="ArrayExpress" accession="ERX1092061">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1092061</PRIMARY_ID>
      <SUBMITTER_ID namespace="UNIVERSITY OF MANCHESTER">E-MTAB-3868:G26_BMP_A</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868:G26_BMP_A</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2500 paired end sequencing; ATAC-seq of BMP response in glioblastoma-derived neural stem cells</TITLE>
    <STUDY_REF refcenter="University of Manchester" refname="E-MTAB-3868" accession="ERP012006">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP012006</PRIMARY_ID>
        <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868</SUBMITTER_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>ATAC-seq of BMP response in glioblastoma-derived neural stem cells</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR refname="E-MTAB-3868:G26_BMP_A" accession="ERS839187" refcenter="University of Manchester">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS839187</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA3532038</EXTERNAL_ID>
          <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868:G26_BMP_A</SUBMITTER_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>G26_BMP_A</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>GENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <PAIRED NOMINAL_SDEV="132" NOMINAL_LENGTH="162"/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>GNS and NS cells were cultured using serum-free basal media supplemented with B27 and N2 culture supplements (Life Technologies). Growth factors EGF and FGF-2 (20 ng/ml) were added. Culture vessels were coated with Laminin (Sigma) for 3 hr at 10 ug/ml prior to use. Alternatively media was directly supplemented with 1 ug/ml Laminin. GNS cells were routinely grown to confluence, dissociated using Accutase (Sigma), and then split 1:3 to 1:7. Medium was replaced every 3-7 days. GNS and NS cells were split as appropriate to maintain a plating density of ~10 cells/mm2; differentiating cells were maintained in media supplemented with bone morphogenic protein (BMP) without EGF and FGF-2. After 8 daysâ treatment cells were harvested, counted and pelleted in aliquots of 50,000 cells. Cells were lysed and the nuclei were pelleted then suspended in buffer and treated with Tn5 transposase for 30 min. ATAC library preparation was undertaken according to published protocols (Buenrostro et al. 2013, Nat Methods 10:1213-8). DNA was purified using Qiagen MinElute columns, followed by 12 cycles of PCR amplification using NEBNext High Fidelity Master Mix and custom primers, with adapter sequences previously specified for ATAC-seq (Buenrostro et al., 2013), followed by further purification on MinElute columns.</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
      <SPOT_DESCRIPTOR>
        <SPOT_DECODE_SPEC>
          <SPOT_LENGTH>100</SPOT_LENGTH>
          <READ_SPEC>
            <READ_INDEX>0</READ_INDEX>
            <READ_LABEL>F</READ_LABEL>
            <READ_CLASS>Application Read</READ_CLASS>
            <READ_TYPE>Forward</READ_TYPE>
            <BASE_COORD>1</BASE_COORD>
          </READ_SPEC>
          <READ_SPEC>
            <READ_INDEX>1</READ_INDEX>
            <READ_LABEL>R</READ_LABEL>
            <READ_CLASS>Application Read</READ_CLASS>
            <READ_TYPE>Reverse</READ_TYPE>
            <BASE_COORD>51</BASE_COORD>
          </READ_SPEC>
        </SPOT_DECODE_SPEC>
      </SPOT_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2500</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>Experimental Factor: glioblastoma multiforme</TAG>
        <VALUE>disease</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>Experimental Factor: bone morphogenic protein</TAG>
        <VALUE>stimulus</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT xmlns:com="SRA.common" center_name="UNIVERSITY OF MANCHESTER" alias="E-MTAB-3868:G26_BMP_B" broker_name="ArrayExpress" accession="ERX1092062">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1092062</PRIMARY_ID>
      <SUBMITTER_ID namespace="UNIVERSITY OF MANCHESTER">E-MTAB-3868:G26_BMP_B</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868:G26_BMP_B</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2500 paired end sequencing; ATAC-seq of BMP response in glioblastoma-derived neural stem cells</TITLE>
    <STUDY_REF refcenter="University of Manchester" refname="E-MTAB-3868" accession="ERP012006">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP012006</PRIMARY_ID>
        <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868</SUBMITTER_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>ATAC-seq of BMP response in glioblastoma-derived neural stem cells</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR refname="E-MTAB-3868:G26_BMP_B" accession="ERS839188" refcenter="University of Manchester">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS839188</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA3532039</EXTERNAL_ID>
          <SUBMITTER_ID namespace="University of Manchester">E-MTAB-3868:G26_BMP_B</SUBMITTER_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>G26_BMP_B</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>GENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <PAIRED NOMINAL_SDEV="94" NOMINAL_LENGTH="130"/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>GNS and NS cells were cultured using serum-free basal media supplemented with B27 and N2 culture supplements (Life Technologies). Growth factors EGF and FGF-2 (20 ng/ml) were added. Culture vessels were coated with Laminin (Sigma) for 3 hr at 10 ug/ml prior to use. Alternatively media was directly supplemented with 1 ug/ml Laminin. GNS cells were routinely grown to confluence, dissociated using Accutase (Sigma), and then split 1:3 to 1:7. Medium was replaced every 3-7 days. GNS and NS cells were split as appropriate to maintain a plating density of ~10 cells/mm2; differentiating cells were maintained in media supplemented with bone morphogenic protein (BMP) without EGF and FGF-2. After 8 daysâ treatment cells were harvested, counted and pelleted in aliquots of 50,000 cells. Cells were lysed and the nuclei were pelleted then suspended in buffer and treated with Tn5 transposase for 30 min. ATAC library preparation was undertaken according to published protocols (Buenrostro et al. 2013, Nat Methods 10:1213-8). DNA was purified using Qiagen MinElute columns, followed by 12 cycles of PCR amplification using NEBNext High Fidelity Master Mix and custom primers, with adapter sequences previously specified for ATAC-seq (Buenrostro et al., 2013), followed by further purification on MinElute columns.</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
      <SPOT_DESCRIPTOR>
        <SPOT_DECODE_SPEC>
          <SPOT_LENGTH>100</SPOT_LENGTH>
          <READ_SPEC>
            <READ_INDEX>0</READ_INDEX>
            <READ_LABEL>F</READ_LABEL>
            <READ_CLASS>Application Read</READ_CLASS>
            <READ_TYPE>Forward</READ_TYPE>
            <BASE_COORD>1</BASE_COORD>
          </READ_SPEC>
          <READ_SPEC>
            <READ_INDEX>1</READ_INDEX>
            <READ_LABEL>R</READ_LABEL>
            <READ_CLASS>Application Read</READ_CLASS>
            <READ_TYPE>Reverse</READ_TYPE>
            <BASE_COORD>51</BASE_COORD>
          </READ_SPEC>
        </SPOT_DECODE_SPEC>
      </SPOT_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2500</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>Experimental Factor: glioblastoma multiforme</TAG>
        <VALUE>disease</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>Experimental Factor: bone morphogenic protein</TAG>
        <VALUE>stimulus</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
</EXPERIMENT_SET>
