<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" emdb_id="EMD-1922" 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>2011-07-04</deposition>
         <header_release>2011-11-04</header_release>
         <map_release>2011-11-04</map_release>
         <update>2014-10-01</update>
      </key_dates>
      <title>Ribosome Assembly Factors Prevent Premature Translation Initiation by 40S Assembly Intermediates</title>
      <authors_list>
         <author>Strunk BS</author>
         <author>Loucks CR</author>
         <author>Su M</author>
         <author>Vashisth H</author>
         <author>Cheng S</author>
         <author>Schilling J</author>
         <author>BrooksIII CL</author>
         <author>Karbstein K</author>
         <author>Skiniotis G</author>
      </authors_list>
      <keywords>pre-40S, Rio2-TAP, 40S intermediate</keywords>
   </admin>
   <crossreferences>
      <citation_list>
         <primary_citation>
            <journal_citation published="true">
               <author order="1">Strunk BS</author>
               <author order="2">Loucks CR</author>
               <author order="3">Su M</author>
               <author order="4">Vashisth H</author>
               <author order="5">Cheng S</author>
               <author order="6">Schilling J</author>
               <author order="7">Brooks CL</author>
               <author order="8">Karbstein K</author>
               <author order="9">Skiniotis G</author>
               <title>Ribosome assembly factors prevent premature translation initiation by 40S assembly intermediates.</title>
               <journal>SCIENCE</journal>
               <volume>333</volume>
               <first_page>1449</first_page>
               <last_page>1453</last_page>
               <year>2011</year>
               <external_references type="PUBMED">21835981</external_references>
               <external_references type="DOI">doi:10.1126/science.1208245</external_references>
            </journal_citation>
         </primary_citation>
      </citation_list>
   </crossreferences>
   <sample>
      <name>Recombinant Tsr1</name>
      <supramolecule_list>
         <sample_supramolecule supramolecule_id="1000">
            <name>Recombinant Tsr1</name>
            <details>The sample was monodisperse</details>
            <oligomeric_state>1</oligomeric_state>
            <number_unique_components>1</number_unique_components>
            <molecular_weight>
               <theoretical units="MDa">0.091</theoretical>
            </molecular_weight>
         </sample_supramolecule>
      </supramolecule_list>
      <macromolecule_list>
         <protein_or_peptide macromolecule_id="1">
            <name synonym="Tsr1">Tsr1</name>
            <natural_source database="NCBI">
               <organism ncbi="4932">Saccharomyces cerevisiae</organism>
               <synonym_organism>Baker's yeast</synonym_organism>
            </natural_source>
            <molecular_weight>
               <experimental units="MDa">0.091</experimental>
               <theoretical units="MDa">0.091</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_expression>
            <sequence>
               <external_references type="UNIPROTKB">Q07381</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>7.5</ph>
                  <details>50mM Tris-Cl 100mM NaCl    10mM MgCl2</details>
               </buffer>
               <staining>
                  <type>NEGATIVE</type>
                  <details>See publication for details.</details>
               </staining>
               <grid>
                  <details>Continuous carbon grid</details>
               </grid>
               <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 12</microscope>
               <illumination_mode>FLOOD BEAM</illumination_mode>
               <imaging_mode>BRIGHT FIELD</imaging_mode>
               <electron_source>LAB6</electron_source>
               <acceleration_voltage units="kV">120</acceleration_voltage>
               <nominal_cs units="mm">2</nominal_cs>
               <nominal_defocus_min units="&#181;m">1.1</nominal_defocus_min>
               <nominal_defocus_max units="&#181;m">1.6</nominal_defocus_max>
               <calibrated_magnification>71138.0</calibrated_magnification>
               <specimen_holder_model>OTHER</specimen_holder_model>
               <alignment_procedure>
                  <legacy>
                     <astigmatism>objective lens astigmatism was corrected at 150,000 times magnification</astigmatism>
                  </legacy>
               </alignment_procedure>
               <image_recording_list>
                  <image_recording>
                     <film_or_detector_model category="CCD">GATAN ULTRASCAN 4000 (4k x 4k)</film_or_detector_model>
                     <number_real_images>200</number_real_images>
                     <average_electron_dose_per_image units="e/&#8491;^2">20</average_electron_dose_per_image>
                  </image_recording>
               </image_recording_list>
               <specimen_holder>Eucentric</specimen_holder>
               <tilt_angle_min>0</tilt_angle_min>
               <tilt_angle_max>60</tilt_angle_max>
            </single_particle_microscopy>
         </microscopy_list>
         <singleparticle_processing image_processing_id="1">
            <details>Manual particle selection using WEB</details>
            <ctf_correction>
               <details>CTFTILT-FREALIGN</details>
            </ctf_correction>
            <final_reconstruction>
               <applied_symmetry>
                  <point_group>C1</point_group>
               </applied_symmetry>
               <algorithm>OTHER</algorithm>
               <resolution res_type="BY AUTHOR" units="&#8491;">30.0</resolution>
               <resolution_method>FSC 0.5 CUT-OFF</resolution_method>
               <software_list>
                  <software>
                     <name>Spider, frealign</name>
                  </software>
               </software_list>
               <number_images_used>3450</number_images_used>
            </final_reconstruction>
            <final_angle_assignment>
               <details>Realign convention</details>
            </final_angle_assignment>
            <final_two_d_classification>
               <number_classes>7</number_classes>
            </final_two_d_classification>
         </singleparticle_processing>
      </structure_determination>
   </structure_determination_list>
   <map format="CCP4" size_kbytes="1025">
      <file>emd_1922.map.gz</file>
      <symmetry>
         <space_group>1</space_group>
      </symmetry>
      <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
      <dimensions>
         <col>64</col>
         <row>64</row>
         <sec>64</sec>
      </dimensions>
      <origin>
         <col>0</col>
         <row>0</row>
         <sec>0</sec>
      </origin>
      <spacing>
         <x>64</x>
         <y>64</y>
         <z>64</z>
      </spacing>
      <cell>
         <a units="&#8491;">266.24</a>
         <b units="&#8491;">266.24</b>
         <c units="&#8491;">266.24</c>
         <alpha units="deg">90</alpha>
         <beta units="deg">90</beta>
         <gamma units="deg">90</gamma>
      </cell>
      <axis_order>
         <fast>X</fast>
         <medium>Y</medium>
         <slow>Z</slow>
      </axis_order>
      <statistics>
         <minimum>-0.191047</minimum>
         <maximum>0.739237</maximum>
         <average>-0.00581185</average>
         <std>0.0573606</std>
      </statistics>
      <pixel_spacing>
         <x units="&#8491;">4.16</x>
         <y units="&#8491;">4.16</y>
         <z units="&#8491;">4.16</z>
      </pixel_spacing>
      <contour_list>
         <contour primary="true">
            <level>0.35</level>
            <source>EMDB</source>
         </contour>
      </contour_list>
      <annotation_details>Image of surface rendered view of Tsr1 recombinant protein</annotation_details>
      <details>::::EMDATABANK.org::::EMD-1922::::</details>
   </map>
</emd>