<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" emdb_id="EMD-2173" 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>2012-08-11</deposition>
         <header_release>2012-10-03</header_release>
         <map_release>2012-10-03</map_release>
         <update>2012-10-03</update>
      </key_dates>
      <title>Negative stain electron microscopy of a CSN-SCF~Nedd8/Skp2/Cks1 complex</title>
      <authors_list>
         <author>Enchev RI</author>
         <author>Scott DC</author>
         <author>da Fonseca P</author>
         <author>Schreiber A</author>
         <author>Monda JK</author>
         <author>Schulman BA</author>
         <author>Peter M</author>
         <author>Morris EP</author>
      </authors_list>
      <keywords>Cop9 Signalosome, Cullin-RING Ligases, SCF</keywords>
   </admin>
   <crossreferences>
      <citation_list>
         <primary_citation>
            <journal_citation published="true">
               <author order="1">Enchev RI</author>
               <author order="2">Scott DC</author>
               <author order="3">da Fonseca PC</author>
               <author order="4">Schreiber A</author>
               <author order="5">Monda JK</author>
               <author order="6">Schulman BA</author>
               <author order="7">Peter M</author>
               <author order="8">Morris EP</author>
               <title>Structural basis for a reciprocal regulation between SCF and CSN.</title>
               <journal>CELL REP.</journal>
               <volume>2</volume>
               <first_page>616</first_page>
               <last_page>627</last_page>
               <year>2012</year>
               <external_references type="PUBMED">22959436</external_references>
               <external_references type="DOI">doi:10.1016/j.celrep.2012.08.019</external_references>
            </journal_citation>
         </primary_citation>
      </citation_list>
   </crossreferences>
   <sample>
      <name>CSN-SCF~Nedd8/Skp2/Cks1</name>
      <supramolecule_list>
         <sample_supramolecule supramolecule_id="1000">
            <name>CSN-SCF~Nedd8/Skp2/Cks1</name>
            <details>The sample was purified over affinity pull-down and Superose6 size exclusion chromatography</details>
            <oligomeric_state>one CSN monomer and one SCF~Nedd8/Skp2/Cks1 monomer</oligomeric_state>
            <number_unique_components>14</number_unique_components>
            <molecular_weight>
               <theoretical units="MDa">0.5</theoretical>
            </molecular_weight>
         </sample_supramolecule>
      </supramolecule_list>
      <macromolecule_list>
         <protein_or_peptide macromolecule_id="1">
            <name>Csn1</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
            </natural_source>
            <molecular_weight>
               <theoretical units="MDa">0.053</theoretical>
            </molecular_weight>
            <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="7111">Trichoplusia ni</recombinant_organism>
               <recombinant_plasmid>recombinant baculoviru/ MultiBac</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
               </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="2">
            <name>Csn2</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
            </natural_source>
            <molecular_weight>
               <theoretical units="MDa">0.052</theoretical>
            </molecular_weight>
            <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="7111">Trichoplusia ni</recombinant_organism>
               <recombinant_plasmid>recombinant baculoviru/ MultiBac</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
               </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="3">
            <name>Csn3</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
            </natural_source>
            <molecular_weight>
               <theoretical units="MDa">0.048</theoretical>
            </molecular_weight>
            <details>N-terminal StrepII2x tag</details>
            <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="7111">Trichoplusia ni</recombinant_organism>
               <recombinant_plasmid>recombinant baculoviru/ MultiBac</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
               </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="4">
            <name>Csn4</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
            </natural_source>
            <molecular_weight>
               <theoretical units="MDa">0.046</theoretical>
            </molecular_weight>
            <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="7111">Trichoplusia ni</recombinant_organism>
               <recombinant_plasmid>recombinant baculoviru/ MultiBac</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
               </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="5">
            <name>Csn5</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
            </natural_source>
            <molecular_weight>
               <theoretical units="MDa">0.04</theoretical>
            </molecular_weight>
            <details>N-terminal His6 tag</details>
            <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="7111">Trichoplusia ni</recombinant_organism>
               <recombinant_plasmid>recombinant baculoviru/ MultiBac</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
               </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="6">
            <name>Csn6</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
            </natural_source>
            <molecular_weight>
               <theoretical units="MDa">0.036</theoretical>
            </molecular_weight>
            <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="7111">Trichoplusia ni</recombinant_organism>
               <recombinant_plasmid>recombinant baculoviru/ MultiBac</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
               </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="7">
            <name>Csn7b</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
            </natural_source>
            <molecular_weight>
               <theoretical units="MDa">0.03</theoretical>
            </molecular_weight>
            <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="7111">Trichoplusia ni</recombinant_organism>
               <recombinant_plasmid>recombinant baculoviru/ MultiBac</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
               </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="8">
            <name>Csn8</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
            </natural_source>
            <molecular_weight>
               <theoretical units="MDa">0.023</theoretical>
            </molecular_weight>
            <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="7111">Trichoplusia ni</recombinant_organism>
               <recombinant_plasmid>recombinant baculoviru/ MultiBac</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
               </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="9">
            <name>Cul1</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
            </natural_source>
            <molecular_weight>
               <theoretical units="MDa">0.09</theoretical>
            </molecular_weight>
            <details>N-terminal StrepII2x tag</details>
            <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="7111">Trichoplusia ni</recombinant_organism>
               <recombinant_plasmid>recombinant baculoviru/ MultiBac</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
               </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="10">
            <name>Rbx1</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
            </natural_source>
            <molecular_weight>
               <theoretical units="MDa">0.012</theoretical>
            </molecular_weight>
            <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="7111">Trichoplusia ni</recombinant_organism>
               <recombinant_plasmid>recombinant baculoviru/ MultiBac</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
               </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="11">
            <name>Skp1</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
            </natural_source>
            <molecular_weight>
               <theoretical units="MDa">0.019</theoretical>
            </molecular_weight>
            <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="562">Escherichia coli</recombinant_organism>
               <recombinant_plasmid>pGEX</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
               </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="12">
            <name>Skp2</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
            </natural_source>
            <molecular_weight>
               <theoretical units="MDa">0.047</theoretical>
            </molecular_weight>
            <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="562">Escherichia coli</recombinant_organism>
               <recombinant_plasmid>pGEX</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
               </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="13">
            <name>Cks1</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
            </natural_source>
            <molecular_weight>
               <theoretical units="MDa">0.01</theoretical>
            </molecular_weight>
            <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="562">Escherichia coli</recombinant_organism>
               <recombinant_plasmid>pGEX</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
               </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="14">
            <name>Nedd8</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
            </natural_source>
            <molecular_weight>
               <theoretical units="MDa">0.009</theoretical>
            </molecular_weight>
            <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="562">Escherichia coli</recombinant_organism>
               <recombinant_plasmid>pGEX</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
               </sequence>
         </protein_or_peptide>
      </macromolecule_list>
   </sample>
   <structure_determination_list>
      <structure_determination structure_determination_id="1">
         <method>singleParticle</method>
         <aggregation_state>particle</aggregation_state>
         <specimen_preparation_list>
            <single_particle_preparation preparation_id="1">
               <concentration units="mg/mL">0.2</concentration>
               <buffer>
                  <ph>7.8</ph>
                  <details>15 mM HEPES pH 7.8, 150 mM NaCl, 1% glycerol and 1 mM DTT</details>
               </buffer>
               <staining>
                  <type>NEGATIVE</type>
                  <details>Quantifoil grids (R2/2 Cu 400 mesh) coated with thin carbon floated from mica were glow-discharged for 30 seconds at 50 mA and 0.2 mbar vacuum. 3 ul purified samples were applied for 1 min to the grids. Following two brief buffer washes, the grids were stained with 2% uranyl acetate, gently blotted using filter paper and air-dried.</details>
               </staining>
               <vitrification>
                  <cryogen_name>NONE</cryogen_name>
                  <instrument>OTHER</instrument>
               </vitrification>
            </single_particle_preparation>
         </specimen_preparation_list>
         <microscopy_list>
            <single_particle_microscopy microscopy_id="1">
               <microscope>FEI TECNAI F20</microscope>
               <illumination_mode>FLOOD BEAM</illumination_mode>
               <imaging_mode>BRIGHT FIELD</imaging_mode>
               <electron_source>FIELD EMISSION GUN</electron_source>
               <acceleration_voltage units="kV">200</acceleration_voltage>
               <nominal_magnification>50000.0</nominal_magnification>
               <specimen_holder_model>SIDE ENTRY, EUCENTRIC</specimen_holder_model>
               <date>2011-01-10</date>
               <image_recording_list>
                  <image_recording>
                     <film_or_detector_model category="CCD">GENERIC TVIPS (4k x 4k)</film_or_detector_model>
                     <average_electron_dose_per_image units="e/&#8491;^2">100</average_electron_dose_per_image>
                     <details>data was collected on a CCD camera</details>
                  </image_recording>
               </image_recording_list>
            </single_particle_microscopy>
         </microscopy_list>
         <singleparticle_processing image_processing_id="1">
            <details>see publication</details>
            <final_reconstruction>
               <applied_symmetry>
                  <point_group>C1</point_group>
               </applied_symmetry>
               <algorithm>OTHER</algorithm>
               <resolution res_type="BY AUTHOR" units="&#8491;">25.0</resolution>
               <resolution_method>FSC 0.5 CUT-OFF</resolution_method>
               <software_list>
                  <software>
                     <name>IMAGIC, Spider, EMAN, in, house</name>
                  </software>
               </software_list>
               <number_images_used>8055</number_images_used>
            </final_reconstruction>
         </singleparticle_processing>
      </structure_determination>
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                  <name>Chimera, Uro</name>
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            <refinement_space>REAL</refinement_space>
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