<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" emdb_id="EMD-1503" 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>2008-04-06</deposition>
         <header_release>2008-04-07</header_release>
         <map_release>2009-03-31</map_release>
         <update>2012-11-07</update>
      </key_dates>
      <title>Initial location of the RNA-dependent RNA polymerase in the bacteriophage phi6 procapsid determined by cryo-electron microscopy</title>
      <authors_list>
         <author>Sen A</author>
         <author>Heymann JB</author>
         <author>Cheng N</author>
         <author>Qiao J</author>
         <author>Mindich L</author>
         <author>Steven AC</author>
      </authors_list>
      <keywords>Cystoviridae, P2 protein</keywords>
   </admin>
   <crossreferences>
      <citation_list>
         <primary_citation>
            <journal_citation published="true">
               <author order="1">Sen A</author>
               <author order="2">Heymann JB</author>
               <author order="3">Cheng N</author>
               <author order="4">Qiao J</author>
               <author order="5">Mindich L</author>
               <author order="6">Steven AC</author>
               <title>Initial location of the RNA-dependent RNA polymerase in the bacteriophage Phi6 procapsid determined by cryo-electron microscopy.</title>
               <journal>J.BIOL.CHEM.</journal>
               <volume>283</volume>
               <first_page>12227</first_page>
               <last_page>12231</last_page>
               <year>2008</year>
               <external_references type="PUBMED">18287088</external_references>
               <external_references type="DOI">doi:10.1074/jbc.M710508200</external_references>
            </journal_citation>
         </primary_citation>
      </citation_list>
   </crossreferences>
   <sample>
      <name>Phi 6 procapsid without the P7 protein</name>
      <supramolecule_list>
         <sample_supramolecule supramolecule_id="1000">
            <name>Phi 6 procapsid without the P7 protein</name>
            <details>Produced using the Escherichia coli cell line LM1115 with the plasmid, pLM574</details>
            <oligomeric_state>Procapsid with 3 proteins P1, P2, P4</oligomeric_state>
            <number_unique_components>1</number_unique_components>
            <molecular_weight>
               <theoretical units="MDa">14</theoretical>
            </molecular_weight>
         </sample_supramolecule>
         <virus_supramolecule supramolecule_id="1">
            <name>Pseudomonas phage phi6</name>
            <sci_species_name ncbi="10879">Pseudomonas phage phi6</sci_species_name>
            <natural_host database="NCBI">
               <organism ncbi="317">Pseudomonas syringae</organism>
               <synonym_organism>BACTERIA(EUBACTERIA)</synonym_organism>
            </natural_host>
            <host_system database="NCBI">
               </host_system>
            <molecular_weight>
               <theoretical units="MDa">14</theoretical>
            </molecular_weight>
            <virus_shell shell_id="1">
               <name>Procapsid</name>
               <diameter units="&#8491;">470</diameter>
               <triangulation>1</triangulation>
            </virus_shell>
            <virus_type>VIRION</virus_type>
            <virus_isolate>STRAIN</virus_isolate>
            <virus_enveloped>true</virus_enveloped>
            <virus_empty>true</virus_empty>
         </virus_supramolecule>
      </supramolecule_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">1.5</concentration>
               <buffer>
                  <ph>7.5</ph>
                  <details>10mM sodium phosphate, 1mM MgCl2</details>
               </buffer>
               <staining>
                  <type>NEGATIVE</type>
                  <details>None</details>
               </staining>
               <vitrification>
                  <cryogen_name>ETHANE</cryogen_name>
                  <instrument>REICHERT-JUNG PLUNGER</instrument>
                  <details>Vitrification instrument: Reichert-Jung cryo-fixation unit</details>
               </vitrification>
            </single_particle_preparation>
         </specimen_preparation_list>
         <microscopy_list>
            <single_particle_microscopy microscopy_id="1">
               <microscope>FEI/PHILIPS CM200FEG</microscope>
               <illumination_mode>FLOOD BEAM</illumination_mode>
               <imaging_mode>BRIGHT FIELD</imaging_mode>
               <electron_source>FIELD EMISSION GUN</electron_source>
               <acceleration_voltage units="kV">120</acceleration_voltage>
               <nominal_cs units="mm">2</nominal_cs>
               <nominal_defocus_min units="&#181;m">1.3</nominal_defocus_min>
               <nominal_defocus_max units="&#181;m">2.6</nominal_defocus_max>
               <nominal_magnification>50000.0</nominal_magnification>
               <specimen_holder_model>GATAN LIQUID NITROGEN</specimen_holder_model>
               <alignment_procedure>
                  <legacy>
                     <astigmatism>Corrected at 300000 times magnification</astigmatism>
                  </legacy>
               </alignment_procedure>
               <date>2007-03-23</date>
               <image_recording_list>
                  <image_recording>
                     <digitization_details>
                        <scanner>NIKON SUPER COOLSCAN 9000</scanner>
                        <sampling_interval units="&#181;m">6.35</sampling_interval>
                     </digitization_details>
                     <number_real_images>34</number_real_images>
                     <average_electron_dose_per_image units="e/&#8491;^2">15</average_electron_dose_per_image>
                     <bits_per_pixel>16.</bits_per_pixel>
                  </image_recording>
               </image_recording_list>
               <specimen_holder>Side entry, Eucentric</specimen_holder>
               <tilt_angle_min>0</tilt_angle_min>
               <tilt_angle_max>0</tilt_angle_max>
            </single_particle_microscopy>
         </microscopy_list>
         <singleparticle_processing image_processing_id="1">
            <ctf_correction>
               <details>Each particle phase flipped</details>
            </ctf_correction>
            <final_reconstruction>
               <applied_symmetry>
                  <point_group>I</point_group>
               </applied_symmetry>
               <algorithm>OTHER</algorithm>
               <resolution res_type="BY AUTHOR" units="&#8491;">16.0</resolution>
               <resolution_method>FSC 0.33 CUT-OFF</resolution_method>
               <software_list>
                  <software>
                     <name>Bsoft, PFT3DR</name>
                  </software>
               </software_list>
               <number_images_used>1238</number_images_used>
            </final_reconstruction>
         </singleparticle_processing>
      </structure_determination>
   </structure_determination_list>
   <map format="CCP4" size_kbytes="50052">
      <file>emd_1503.map.gz</file>
      <symmetry>
         <space_group>1</space_group>
      </symmetry>
      <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
      <dimensions>
         <col>234</col>
         <row>234</row>
         <sec>234</sec>
      </dimensions>
      <origin>
         <col>-117</col>
         <row>-117</row>
         <sec>-117</sec>
      </origin>
      <spacing>
         <x>234</x>
         <y>234</y>
         <z>234</z>
      </spacing>
      <cell>
         <a units="&#8491;">591.82</a>
         <b units="&#8491;">591.82</b>
         <c units="&#8491;">591.82</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>-5.48385</minimum>
         <maximum>5.42036</maximum>
         <average>-0.000000000910658</average>
         <std>1.0</std>
      </statistics>
      <pixel_spacing>
         <x units="&#8491;">2.54</x>
         <y units="&#8491;">2.54</y>
         <z units="&#8491;">2.54</z>
      </pixel_spacing>
      <contour_list>
         <contour primary="true">
            <level>2.33</level>
         </contour>
      </contour_list>
      <annotation_details>Map of a procapsid without the P7 protein, containing only proteins P1, P2 and P4</annotation_details>
      <details>::::EMDATABANK.org::::EMD-1503::::</details>
   </map>
   <interpretation>
      <figure_list>
         <figure>
            <file>emd_1503.png</file>
         </figure>
         <figure>
            <file>emd_1503_1.png</file>
         </figure>
      </figure_list>
   </interpretation>
</emd>