<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" emdb_id="EMD-2236" version="3.0.1.1" xsi:schemaLocation="https://github.com/emdb-empiar/emdb-schemas/blob/master/v3/v3_0_1_1/emdb_relaxed.xsd">
   <admin>
      <current_status>
         <code>REL</code>
         <processing_site>PDBe</processing_site>
      </current_status>
      <sites>
         <deposition>PDBe</deposition>
         <last_processing>PDBe</last_processing>
      </sites>
      <key_dates>
         <deposition>2012-11-21</deposition>
         <header_release>2012-12-12</header_release>
         <map_release>2012-12-12</map_release>
         <update>2012-12-12</update>
      </key_dates>
      <title>Negative Staining Structure of Human Polycomb Repressive Complex 2 bound to the co-factor AEBP2</title>
      <authors_list>
         <author>Ciferri C</author>
         <author>Lander GC</author>
         <author>Maiolica A</author>
         <author>Herzog F</author>
         <author>Aebersold R</author>
         <author>Nogales E</author>
      </authors_list>
      <keywords>Polycomb, PRC2, epigenetic, gene silencing, nucleosome, labeling, chemical cross-linking, chromatin</keywords>
   </admin>
   <crossreferences>
      <citation_list>
         <primary_citation>
            <journal_citation published="true">
               <author order="1">Ciferri C</author>
               <author order="2">Lander GC</author>
               <author order="3">Maiolica A</author>
               <author order="4">Herzog F</author>
               <author order="5">Aebersold R</author>
               <author order="6">Nogales E</author>
               <title>Molecular architecture of human polycomb repressive complex 2.</title>
               <journal>ELIFE</journal>
               <volume>1</volume>
               <first_page>e00005</first_page>
               <last_page>e00005</last_page>
               <year>2012</year>
               <external_references type="PUBMED">23110252</external_references>
               <external_references type="DOI">doi:10.7554/eLife.00005</external_references>
            </journal_citation>
         </primary_citation>
      </citation_list>
   </crossreferences>
   <sample>
      <name>Negative Staining Reconstruction of Polycomb repressive Complex 2 bound to the co-factor AEBP2</name>
      <supramolecule_list>
         <sample_supramolecule supramolecule_id="1000">
            <name>Negative Staining Reconstruction of Polycomb repressive Complex 2 bound to the co-factor AEBP2</name>
            <oligomeric_state>Pentameric Complex</oligomeric_state>
            <number_unique_components>5</number_unique_components>
            <molecular_weight>
               <theoretical units="MDa">265</theoretical>
            </molecular_weight>
         </sample_supramolecule>
      </supramolecule_list>
      <macromolecule_list>
         <protein_or_peptide macromolecule_id="1">
            <name>RbAp48</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
               <cellular_location>Nucleus</cellular_location>
            </natural_source>
            <number_of_copies>1</number_of_copies>
            <oligomeric_state>monomer</oligomeric_state>
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               <recombinant_organism ncbi="7108">Spodoptera frugiperda</recombinant_organism>
               <recombinant_plasmid>pFast Bac</recombinant_plasmid>
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            <sequence>
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               <external_references type="INTERPRO">IPR001214</external_references>
            </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="2">
            <name>Ezh2</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
               <cellular_location>Nucleus</cellular_location>
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            <oligomeric_state>monomer</oligomeric_state>
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               <recombinant_organism ncbi="7108">Spodoptera frugiperda</recombinant_organism>
               <recombinant_plasmid>pFast Bac</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
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            </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="3">
            <name>Suz12</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
               <cellular_location>Nucleus</cellular_location>
            </natural_source>
            <number_of_copies>1</number_of_copies>
            <oligomeric_state>monomer</oligomeric_state>
            <recombinant_exp_flag>true</recombinant_exp_flag>
            <recombinant_expression database="NCBI">
               <recombinant_organism ncbi="7108">Spodoptera frugiperda</recombinant_organism>
               <recombinant_plasmid>pFast Bac</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
               <external_references type="GO">GO:0035098</external_references>
               <external_references type="INTERPRO">IPR001214</external_references>
            </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="4">
            <name>AEBP2</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
               <cellular_location>Nucleus</cellular_location>
            </natural_source>
            <number_of_copies>1</number_of_copies>
            <oligomeric_state>monomer</oligomeric_state>
            <recombinant_exp_flag>true</recombinant_exp_flag>
            <recombinant_expression database="NCBI">
               <recombinant_organism ncbi="7108">Spodoptera frugiperda</recombinant_organism>
               <recombinant_plasmid>pFast Bac</recombinant_plasmid>
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            <sequence>
               <external_references type="GO">GO:0035098</external_references>
               <external_references type="INTERPRO">IPR001214</external_references>
            </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="5">
            <name>EED</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
               <cellular_location>Nucleus</cellular_location>
            </natural_source>
            <number_of_copies>1</number_of_copies>
            <oligomeric_state>monomer</oligomeric_state>
            <recombinant_exp_flag>true</recombinant_exp_flag>
            <recombinant_expression database="NCBI">
               <recombinant_organism ncbi="7108">Spodoptera frugiperda</recombinant_organism>
               <recombinant_plasmid>pFast Bac</recombinant_plasmid>
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            <sequence>
               <external_references type="GO">GO:0035098</external_references>
               <external_references type="INTERPRO">IPR001214</external_references>
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                  <type>NEGATIVE</type>
                  <details>2% Uranyl Formate</details>
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               <grid>
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               <vitrification>
                  <cryogen_name>NONE</cryogen_name>
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               <electron_source>FIELD EMISSION GUN</electron_source>
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               <nominal_cs units="mm">2.2</nominal_cs>
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               <temperature>
                  <temperature_average units="K">298</temperature_average>
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               <alignment_procedure>
                  <legacy>
                     <astigmatism>Objective lens astigmatism was corrected at 150,000 times magnification</astigmatism>
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                     <name>FEI</name>
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               <date>2011-04-11</date>
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                  <image_recording>
                     <film_or_detector_model category="CCD">GENERIC GATAN (4k x 4k)</film_or_detector_model>
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            <details>Material and Methods section of Paper</details>
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               <details>whole micrograph</details>
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               <applied_symmetry>
                  <point_group>C1</point_group>
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               <algorithm>OTHER</algorithm>
               <resolution res_type="BY AUTHOR" units="&#8491;">21.0</resolution>
               <resolution_method>FSC 0.5 CUT-OFF</resolution_method>
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               <access_code>2YB8</access_code>
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               <software>
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            <details>Protocol: local rigid-body fitting algorithm</details>
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