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   <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>2006-11-27</deposition>
         <header_release>2006-11-27</header_release>
         <map_release>2007-03-19</map_release>
         <update>2013-09-18</update>
      </key_dates>
      <title>Electron cryomicroscopy comparison of the architectures of the enveloped bacteriophages phi6 and phi8.</title>
      <authors_list>
         <author>Jaalinoja HT</author>
         <author>Huiskonen JT</author>
         <author>Butcher SJ</author>
      </authors_list>
      <keywords>
         </keywords>
   </admin>
   <crossreferences>
      <citation_list>
         <primary_citation>
            <journal_citation published="true">
               <author order="1">Jaalinoja HT</author>
               <author order="2">Huiskonen JT</author>
               <author order="3">Butcher SJ</author>
               <title>Electron cryomicroscopy comparison of the architectures of the enveloped bacteriophages phi6 and phi8.</title>
               <journal>STRUCTURE</journal>
               <volume>15</volume>
               <first_page>157</first_page>
               <last_page>167</last_page>
               <year>2007</year>
               <external_references type="PUBMED">17292834</external_references>
               <external_references type="DOI">doi:10.1016/j.str.2006.12.004</external_references>
            </journal_citation>
         </primary_citation>
      </citation_list>
   </crossreferences>
   <sample>
      <name>Bacteriophage Phi8 core</name>
      <supramolecule_list>
         <sample_supramolecule supramolecule_id="1000">
            <name>Bacteriophage Phi8 core</name>
            <number_unique_components>1</number_unique_components>
         </sample_supramolecule>
         <virus_supramolecule supramolecule_id="1">
            <name synonym="Cystovirus Phi8 polymerase complex">Pseudomonas phage phi8</name>
            <sci_species_name ncbi="120086">Pseudomonas phage phi8</sci_species_name>
            <natural_host database="NCBI">
               <organism>Pseudomonads syringae</organism>
               <synonym_organism>BACTERIA(EUBACTERIA)</synonym_organism>
            </natural_host>
            <host_system database="NCBI">
               </host_system>
            <virus_shell shell_id="1">
               <name>Polymerase complex</name>
               <diameter units="&#8491;">500</diameter>
               <triangulation>1</triangulation>
            </virus_shell>
            <virus_type>VIRION</virus_type>
            <virus_isolate>SPECIES</virus_isolate>
            <virus_enveloped>false</virus_enveloped>
            <virus_empty>false</virus_empty>
            <syn_species_name>Cystovirus Phi8 polymerase complex</syn_species_name>
         </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">
               <buffer>
                  <details>10 mM potassium phosphate pH7.5, 1 mM MgCl2, 50 mM NaCl</details>
               </buffer>
               <grid>
                  <details>400 mesh copper grid, Quantifoil R2/2 holey</details>
               </grid>
               <vitrification>
                  <cryogen_name>ETHANE</cryogen_name>
                  <chamber_temperature units="K">90</chamber_temperature>
                  <instrument>HOMEMADE PLUNGER</instrument>
                  <details>Vitrification instrument: EMBL design</details>
                  <method>A small vial of ethane is placed inside a larger liquid
        nitrogen reservoir. The grid holding 3 microliters of the sample
        is held in place at the bottom of a plunger by the means of fine
        tweezers. When the liquid ethane is ready, a piece of filter
        paper       is then pressed against the sample to blot off
        excess buffer,       sufficient to leave a thin layer on the
        grid. The filter paper is       removed, and the plunger is
        allowed to drop into the liquid       ethane. Once the grid
        enters the liquid ethane, the sample is       rapidly frozen,
        and the grid is transferred under liquid nitrogen       to a
        storage box immersed in liquid nitrogen for later use in the microscope.</method>
               </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_cs units="mm">2.0</nominal_cs>
               <nominal_defocus_min units="&#181;m">0.7</nominal_defocus_min>
               <nominal_defocus_max units="&#181;m">3.3</nominal_defocus_max>
               <nominal_magnification>50000.0</nominal_magnification>
               <calibrated_magnification>49300.0</calibrated_magnification>
               <specimen_holder_model>GATAN LIQUID NITROGEN</specimen_holder_model>
               <temperature>
                  <temperature_min units="K">90</temperature_min>
                  <temperature_max units="K">94</temperature_max>
                  <temperature_average units="K">93</temperature_average>
               </temperature>
               <image_recording_list>
                  <image_recording>
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                     <digitization_details>
                        <scanner>ZEISS SCAI</scanner>
                        <sampling_interval units="&#181;m">7</sampling_interval>
                     </digitization_details>
                     <number_real_images>66</number_real_images>
                     <bits_per_pixel>12.</bits_per_pixel>
                  </image_recording>
               </image_recording_list>
               <specimen_holder>Side entry liquid nitrogen-cooled cryo specimen holder</specimen_holder>
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               <tilt_angle_max>0</tilt_angle_max>
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         </microscopy_list>
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               <details>Each particle, wiener factor 0.1</details>
            </ctf_correction>
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                  </software>
               </software_list>
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         <fast>X</fast>
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      <annotation_details>3D reconstruction of the bacteriophage Phi8
      polymerase complex</annotation_details>
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