<?xml version="1.0" encoding="UTF-8"?>
<SAMPLE_SET xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <SAMPLE alias="GSM6135015" accession="SRS12977032">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS12977032</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN28207028</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM6135015</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>adult cardiomyocytes, no 4sU, rep2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>837586</ID>
          <LABEL>PRJNA837586</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>Adult cardiomyocytes</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell type</TAG>
        <VALUE>Adult cardiomyocytes</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>genotype</TAG>
        <VALUE>WT</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>treatment</TAG>
        <VALUE>no 4sU</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>age</TAG>
        <VALUE>10 weeks</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM6135023" accession="SRS12977033">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS12977033</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN28207020</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM6135023</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>mESC, 6h, 1mM</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>837586</ID>
          <LABEL>PRJNA837586</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>G4 ES cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell line</TAG>
        <VALUE>G4 ES cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell type</TAG>
        <VALUE>mouse embryonic stem cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>genotype</TAG>
        <VALUE>WT</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>treatment</TAG>
        <VALUE>6h 1mM 4sU</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM6135024" accession="SRS12977036">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS12977036</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN28207019</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM6135024</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>mESC, 24h, 1mM</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>837586</ID>
          <LABEL>PRJNA837586</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>G4 ES cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell line</TAG>
        <VALUE>G4 ES cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell type</TAG>
        <VALUE>mouse embryonic stem cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>genotype</TAG>
        <VALUE>WT</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>treatment</TAG>
        <VALUE>24h 1mM 4sU</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM6135018" accession="SRS12977037">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS12977037</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN28207025</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM6135018</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>prenatal cardiomyocytes, 30min 4sU, rep3</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>837586</ID>
          <LABEL>PRJNA837586</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>Prenatal cardiomyocytes</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell type</TAG>
        <VALUE>Prenatal cardiomyocytes</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>genotype</TAG>
        <VALUE>WT</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>treatment</TAG>
        <VALUE>30 min 4sU during dissociation</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>age</TAG>
        <VALUE>E17.5 embryos</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM6135021" accession="SRS12977040">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS12977040</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN28207022</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM6135021</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>mESC, 24h, 100uM</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>837586</ID>
          <LABEL>PRJNA837586</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>G4 ES cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell line</TAG>
        <VALUE>G4 ES cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell type</TAG>
        <VALUE>mouse embryonic stem cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>genotype</TAG>
        <VALUE>WT</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>treatment</TAG>
        <VALUE>24h 100uM 4sU</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM6135022" accession="SRS12977041">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS12977041</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN28207021</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM6135022</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>mESC, 2h, 1mM</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>837586</ID>
          <LABEL>PRJNA837586</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>G4 ES cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell line</TAG>
        <VALUE>G4 ES cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell type</TAG>
        <VALUE>mouse embryonic stem cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>genotype</TAG>
        <VALUE>WT</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>treatment</TAG>
        <VALUE>2h 1mM 4sU</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM6135026" accession="SRS12977043">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS12977043</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN28207017</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM6135026</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>mESC, 6h, 10mM</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>837586</ID>
          <LABEL>PRJNA837586</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>G4 ES cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell line</TAG>
        <VALUE>G4 ES cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell type</TAG>
        <VALUE>mouse embryonic stem cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>genotype</TAG>
        <VALUE>WT</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>treatment</TAG>
        <VALUE>6h 10mM 4sU</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM6135028" accession="SRS12977045">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS12977045</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN28207015</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM6135028</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>larvae, dissociated</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>7955</TAXON_ID>
      <SCIENTIFIC_NAME>Danio rerio</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>837586</ID>
          <LABEL>PRJNA837586</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>whole larvae, 48hpf</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell type</TAG>
        <VALUE>whole larvae, 48hpf</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>genotype</TAG>
        <VALUE>WT</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>treatment</TAG>
        <VALUE>30 min 4sU during dissociation</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>age</TAG>
        <VALUE>48hpf</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM6135030" accession="SRS12977047">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS12977047</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN28207013</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM6135030</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>larvae, homogenized</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>7955</TAXON_ID>
      <SCIENTIFIC_NAME>Danio rerio</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>837586</ID>
          <LABEL>PRJNA837586</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>whole larvae, 48hpf</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell type</TAG>
        <VALUE>whole larvae, 48hpf</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>genotype</TAG>
        <VALUE>WT</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>treatment</TAG>
        <VALUE>homogenized</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>age</TAG>
        <VALUE>48hpf</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM6135012" accession="SRS12977029">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS12977029</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN28207031</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM6135012</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>adult cardiomyocytes, 30 min 4sU, rep1</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>837586</ID>
          <LABEL>PRJNA837586</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>Adult cardiomyocytes</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell type</TAG>
        <VALUE>Adult cardiomyocytes</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>genotype</TAG>
        <VALUE>WT</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>treatment</TAG>
        <VALUE>30 min 4sU during dissociation</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>age</TAG>
        <VALUE>10 weeks</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM6135013" accession="SRS12977030">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS12977030</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN28207030</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM6135013</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>adult cardiomyocytes, no 4sU, rep1</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>837586</ID>
          <LABEL>PRJNA837586</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>Adult cardiomyocytes</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell type</TAG>
        <VALUE>Adult cardiomyocytes</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>genotype</TAG>
        <VALUE>WT</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>treatment</TAG>
        <VALUE>no 4sU</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>age</TAG>
        <VALUE>10 weeks</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM6135014" accession="SRS12977031">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS12977031</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN28207029</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM6135014</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>adult cardiomyocytes, 30 min 4sU, rep2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>837586</ID>
          <LABEL>PRJNA837586</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>Adult cardiomyocytes</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell type</TAG>
        <VALUE>Adult cardiomyocytes</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>genotype</TAG>
        <VALUE>WT</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>treatment</TAG>
        <VALUE>30 min 4sU during dissociation</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>age</TAG>
        <VALUE>10 weeks</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM6135017" accession="SRS12977034">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS12977034</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN28207026</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM6135017</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>prenatal cardiomyocytes, 30min 4sU, rep2</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>837586</ID>
          <LABEL>PRJNA837586</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>Prenatal cardiomyocytes</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell type</TAG>
        <VALUE>Prenatal cardiomyocytes</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>genotype</TAG>
        <VALUE>WT</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>treatment</TAG>
        <VALUE>30 min 4sU during dissociation</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>age</TAG>
        <VALUE>E17.5 embryos</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM6135016" accession="SRS12977035">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS12977035</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN28207027</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM6135016</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>prenatal cardiomyocytes, 30min 4sU, rep1</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>837586</ID>
          <LABEL>PRJNA837586</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>Prenatal cardiomyocytes</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell type</TAG>
        <VALUE>Prenatal cardiomyocytes</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>genotype</TAG>
        <VALUE>WT</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>treatment</TAG>
        <VALUE>30 min 4sU during dissociation</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>age</TAG>
        <VALUE>E17.5 embryos</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM6135019" accession="SRS12977038">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS12977038</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN28207024</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM6135019</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>mESC, 2h, 100uM</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>837586</ID>
          <LABEL>PRJNA837586</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>G4 ES cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell line</TAG>
        <VALUE>G4 ES cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell type</TAG>
        <VALUE>mouse embryonic stem cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>genotype</TAG>
        <VALUE>WT</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>treatment</TAG>
        <VALUE>2h 100uM 4sU</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM6135020" accession="SRS12977039">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS12977039</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN28207023</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM6135020</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>mESC, 6h, 100uM</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>837586</ID>
          <LABEL>PRJNA837586</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>G4 ES cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell line</TAG>
        <VALUE>G4 ES cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell type</TAG>
        <VALUE>mouse embryonic stem cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>genotype</TAG>
        <VALUE>WT</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>treatment</TAG>
        <VALUE>6h 100uM 4sU</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM6135025" accession="SRS12977042">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS12977042</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN28207018</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM6135025</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>mESC, 2h, 10mM</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>837586</ID>
          <LABEL>PRJNA837586</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>G4 ES cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell line</TAG>
        <VALUE>G4 ES cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell type</TAG>
        <VALUE>mouse embryonic stem cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>genotype</TAG>
        <VALUE>WT</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>treatment</TAG>
        <VALUE>2h 10mM 4sU</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM6135027" accession="SRS12977044">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS12977044</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN28207016</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM6135027</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>mESC, 24h, 10mM</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>10090</TAXON_ID>
      <SCIENTIFIC_NAME>Mus musculus</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>837586</ID>
          <LABEL>PRJNA837586</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>G4 ES cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell line</TAG>
        <VALUE>G4 ES cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell type</TAG>
        <VALUE>mouse embryonic stem cells</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>genotype</TAG>
        <VALUE>WT</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>treatment</TAG>
        <VALUE>24h 10mM 4sU</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="GSM6135029" accession="SRS12977046">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS12977046</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN28207014</EXTERNAL_ID>
      <EXTERNAL_ID namespace="GEO">GSM6135029</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>larvae, injected</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>7955</TAXON_ID>
      <SCIENTIFIC_NAME>Danio rerio</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>837586</ID>
          <LABEL>PRJNA837586</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>source_name</TAG>
        <VALUE>whole larvae, 48hpf</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>cell type</TAG>
        <VALUE>whole larvae, 48hpf</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>genotype</TAG>
        <VALUE>WT</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>treatment</TAG>
        <VALUE>30 min 4sU injected</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>age</TAG>
        <VALUE>48hpf</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
</SAMPLE_SET>
