<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" emdb_id="EMD-2012" 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>2011-12-20</deposition>
         <header_release>2012-01-31</header_release>
         <map_release>2012-01-31</map_release>
         <update>2013-03-13</update>
      </key_dates>
      <title>The Cryo-EM Structure of the Archaeal 50S Ribosomal Subunit in Complex with Initiation Factor 6</title>
      <authors_list>
         <author>Greber BJ</author>
         <author>Boehringer D</author>
         <author>Godinic-Mikulcic V</author>
         <author>Crnkovic A</author>
         <author>Ibba M</author>
         <author>Weygand-Durasevic I</author>
         <author>Ban N</author>
      </authors_list>
      <keywords>50S ribosomal subunit, protein synthesis, initiation factor 6</keywords>
   </admin>
   <crossreferences>
      <citation_list>
         <primary_citation>
            <journal_citation published="true">
               <author order="1">Greber BJ</author>
               <author order="2">Boehringer D</author>
               <author order="3">Godinic-Mikulcic V</author>
               <author order="4">Crnkovic A</author>
               <author order="5">Ibba M</author>
               <author order="6">Weygand-Durasevic I</author>
               <author order="7">Ban N</author>
               <title>Cryo-EM structure of the archaeal 50S ribosomal subunit in complex with initiation factor 6 and implications for ribosome evolution.</title>
               <journal>J.MOL.BIOL.</journal>
               <volume>418</volume>
               <first_page>145</first_page>
               <last_page>160</last_page>
               <year>2012</year>
               <external_references type="PUBMED">22306461</external_references>
               <external_references type="DOI">doi:10.1016/j.jmb.2012.01.018</external_references>
            </journal_citation>
         </primary_citation>
      </citation_list>
      <pdb_list>
         <pdb_reference>
            <pdb_id>4adx</pdb_id>
            <relationship>
               <in_frame>FULLOVERLAP</in_frame>
            </relationship>
         </pdb_reference>
      </pdb_list>
   </crossreferences>
   <sample>
      <name>50S ribosomal subunit in complex with archaeal initiation factor 6</name>
      <supramolecule_list>
         <sample_supramolecule supramolecule_id="1000">
            <name>50S ribosomal subunit in complex with archaeal initiation factor 6</name>
            <details>none</details>
            <oligomeric_state>Equimolar complex of 50S and aIF6</oligomeric_state>
            <number_unique_components>2</number_unique_components>
            <molecular_weight>
               <theoretical units="MDa">1.6</theoretical>
            </molecular_weight>
         </sample_supramolecule>
         <complex_supramolecule supramolecule_id="1">
            <name synonym="Large ribosomal subunit">Methanothermobacter thermautotrophicus 50S ribosomal subunit</name>
            <recombinant_exp_flag>false</recombinant_exp_flag>
            <natural_source database="NCBI">
               <organism ncbi="187420">Methanothermobacter thermautotrophicus str. Delta H</organism>
               <cellular_location>Cytoplasm</cellular_location>
            </natural_source>
            <recombinant_expression database="NCBI">
               </recombinant_expression>
            <molecular_weight>
               <theoretical units="MDa">1.6</theoretical>
            </molecular_weight>
            <ribosome-details>ribosome-prokaryote: LSU 50S, LSU RNA 23S, LSU RNA 5S</ribosome-details>
         </complex_supramolecule>
      </supramolecule_list>
      <macromolecule_list>
         <protein_or_peptide macromolecule_id="1">
            <name synonym="archaeal initiation factor 6">aIF6</name>
            <natural_source database="NCBI">
               <organism ncbi="187420">Methanothermobacter thermautotrophicus str. Delta H</organism>
               <cellular_location>Cytoplasm</cellular_location>
            </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>false</recombinant_exp_flag>
            <recombinant_expression database="NCBI">
               </recombinant_expression>
            <sequence>
               <external_references type="UNIPROTKB">O27648</external_references>
               <external_references type="INTERPRO">IPR002769</external_references>
            </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">
               <buffer>
                  <ph>8.0</ph>
                  <details>20 mM Tris-HCl pH 8, 20 mM MgCl2, 50 mM NH4Cl</details>
               </buffer>
               <staining>
                  <type>NEGATIVE</type>
                  <details>cryo</details>
               </staining>
               <grid>
                  <details>Quantifoil holey carbon grid R2/1</details>
               </grid>
               <vitrification>
                  <cryogen_name>ETHANE</cryogen_name>
                  <chamber_temperature units="K">80</chamber_temperature>
                  <instrument>HOMEMADE PLUNGER</instrument>
                  <details>Vitrification instrument: manual plunger</details>
                  <method>manual blotting</method>
               </vitrification>
            </single_particle_preparation>
         </specimen_preparation_list>
         <microscopy_list>
            <single_particle_microscopy microscopy_id="1">
               <microscope>FEI TECNAI 20</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_cs units="mm">2.2</nominal_cs>
               <nominal_defocus_min units="&#181;m">1.2</nominal_defocus_min>
               <nominal_defocus_max units="&#181;m">4.5</nominal_defocus_max>
               <nominal_magnification>83000.0</nominal_magnification>
               <specimen_holder_model>GATAN LIQUID NITROGEN</specimen_holder_model>
               <temperature>
                  <temperature_average units="K">87</temperature_average>
               </temperature>
               <image_recording_list>
                  <image_recording>
                     <film_or_detector_model category="CCD">GATAN ULTRASCAN 4000 (4k x 4k)</film_or_detector_model>
                     <digitization_details>
                        <sampling_interval units="&#181;m">15</sampling_interval>
                     </digitization_details>
                     <average_electron_dose_per_image units="e/&#8491;^2">20</average_electron_dose_per_image>
                     <bits_per_pixel>16.</bits_per_pixel>
                  </image_recording>
               </image_recording_list>
               <specimen_holder>eucentric</specimen_holder>
               <tilt_angle_min>0</tilt_angle_min>
               <tilt_angle_max>0</tilt_angle_max>
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         </microscopy_list>
         <singleparticle_processing image_processing_id="1">
            <ctf_correction>
               <details>per frame</details>
            </ctf_correction>
            <final_reconstruction>
               <applied_symmetry>
                  <point_group>C1</point_group>
               </applied_symmetry>
               <algorithm>OTHER</algorithm>
               <resolution res_type="BY AUTHOR" units="&#8491;">6.6</resolution>
               <resolution_method>FSC 0.5 CUT-OFF</resolution_method>
               <software_list>
                  <software>
                     <name>Imagic-5, SPIDER</name>
                  </software>
               </software_list>
               <number_images_used>70364</number_images_used>
            </final_reconstruction>
         </singleparticle_processing>
      </structure_determination>
   </structure_determination_list>
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      <file>emd_2012.map.gz</file>
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      </symmetry>
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         <row>180</row>
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         <fast>X</fast>
         <medium>Y</medium>
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         <minimum>-201.715789790000002</minimum>
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      <contour_list>
         <contour primary="true">
            <level>30.0</level>
            <source>AUTHOR</source>
         </contour>
      </contour_list>
      <annotation_details>Structure of the M. thermautotrophicus 50S-aIF6 complex</annotation_details>
      <details>::::EMDATABANK.org::::EMD-2012::::</details>
   </map>
   <interpretation>
      <modelling_list>
         <modelling>
            <initial_model>
               <access_code>3CC2</access_code>
            </initial_model>
            <refinement_protocol>RIGID BODY FIT</refinement_protocol>
            <software_list>
               <software>
                  <name>Chimera</name>
               </software>
            </software_list>
            <details>Protocol: rigid body</details>
            <target_criteria>correlation</target_criteria>
            <refinement_space>REAL</refinement_space>
         </modelling>
         <modelling>
            <initial_model>
               <access_code>3O58</access_code>
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            <refinement_protocol>RIGID BODY FIT</refinement_protocol>
            <software_list>
               <software>
                  <name>Chimera</name>
               </software>
            </software_list>
            <details>Protocol: rigid body</details>
            <target_criteria>correlation</target_criteria>
            <refinement_space>REAL</refinement_space>
         </modelling>
         <modelling>
            <initial_model>
               <access_code>4A17</access_code>
            </initial_model>
            <refinement_protocol>RIGID BODY FIT</refinement_protocol>
            <software_list>
               <software>
                  <name>Chimera</name>
               </software>
            </software_list>
            <details>Protocol: rigid body</details>
            <target_criteria>correlation</target_criteria>
            <refinement_space>REAL</refinement_space>
         </modelling>
         <modelling>
            <initial_model>
               <access_code>4A19</access_code>
            </initial_model>
            <refinement_protocol>RIGID BODY FIT</refinement_protocol>
            <software_list>
               <software>
                  <name>Chimera</name>
               </software>
            </software_list>
            <details>Protocol: rigid body</details>
            <target_criteria>correlation</target_criteria>
            <refinement_space>REAL</refinement_space>
         </modelling>
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      <segmentation_list>
         <segmentation>
            <file>emd_2012_msk_1.map</file>
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               <file>emd_2012_msk_1.map</file>
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                  <gamma units="deg">90.0</gamma>
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               <axis_order>
                  <fast>X</fast>
                  <medium>Y</medium>
                  <slow>Z</slow>
               </axis_order>
               <statistics>
                  <minimum>0.0</minimum>
                  <maximum>1.0</maximum>
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                  <y units="&#8491;">1.81</y>
                  <z units="&#8491;">1.81</z>
               </pixel_spacing>
               <annotation_details>NONE</annotation_details>
               <details>3D TEST-IMAGE SPHERICALLY SYMMETRIC BLOB // Created by IMAGIC: IMAGIC image = sphere  13-10-20 16:10:37 // // Created by IMAGIC: CCP4 image = sphere.ccp4  13-10-20 15:15:22 //</details>
            </mask_details>
         </segmentation>
      </segmentation_list>
   </interpretation>
</emd>
