<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" emdb_id="EMD-2791" 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>2014-10-07</deposition>
         <header_release>2014-12-24</header_release>
         <map_release>2014-12-24</map_release>
         <update>2015-03-11</update>
      </key_dates>
      <title>Near-atomic resolution reconstruction of Nudaurelia capensis omega virus (NwV) using a mid-range electron microscope operated at 200 kV</title>
      <authors_list>
         <author>Campbell MG</author>
         <author>Kearney BM</author>
         <author>Cheng A</author>
         <author>Potter CS</author>
         <author>Johnson JE</author>
         <author>Carragher B</author>
         <author>Veesler D</author>
      </authors_list>
      <keywords>Single-particle electron microscopy, Direct detectors, Near-atomic resolution</keywords>
   </admin>
   <crossreferences>
      <citation_list>
         <primary_citation>
            <journal_citation published="true">
               <author order="1">Campbell MG</author>
               <author order="2">Kearney BM</author>
               <author order="3">Cheng A</author>
               <author order="4">Potter CS</author>
               <author order="5">Potter CS</author>
               <author order="6">Carragher B</author>
               <author order="7">Veesler D</author>
               <title>Near-atomic resolution reconstructions using a mid-range electron microscope operated at 200 kV.</title>
               <journal>J.STRUCT.BIOL.</journal>
               <volume>188</volume>
               <first_page>183</first_page>
               <last_page>187</last_page>
               <year>2014</year>
               <external_references type="PUBMED">25278130</external_references>
               <external_references type="DOI">doi:10.1016/j.jsb.2014.09.008</external_references>
            </journal_citation>
         </primary_citation>
      </citation_list>
   </crossreferences>
   <sample>
      <name>Near-atomic resolution reconstruction of NwV using a mid-range electron microscope operated at 200 kV</name>
      <supramolecule_list>
         <sample_supramolecule supramolecule_id="1000">
            <name>Near-atomic resolution reconstruction of NwV using a mid-range electron microscope operated at 200 kV</name>
            <oligomeric_state>Icosahedral</oligomeric_state>
            <number_unique_components>1</number_unique_components>
            <molecular_weight>
               <theoretical units="MDa">16.75</theoretical>
            </molecular_weight>
         </sample_supramolecule>
         <virus_supramolecule supramolecule_id="1">
            <name synonym="NwV">Nudaurelia capensis omega virus</name>
            <sci_species_name ncbi="12541">Nudaurelia capensis omega virus</sci_species_name>
            <natural_host database="NCBI">
               <organism ncbi="7088">Lepidoptera</organism>
               <synonym_organism>INVERTEBRATES</synonym_organism>
            </natural_host>
            <host_system database="NCBI">
               <recombinant_organism ncbi="7108">Spodoptera frugiperda</recombinant_organism>
               <recombinant_cell>SF21</recombinant_cell>
               <recombinant_plasmid>baculovirus</recombinant_plasmid>
            </host_system>
            <molecular_weight>
               <theoretical units="MDa">16.75</theoretical>
            </molecular_weight>
            <virus_shell shell_id="1">
               <diameter units="&#8491;">410</diameter>
               <triangulation>4</triangulation>
            </virus_shell>
            <virus_type>VIRUS-LIKE PARTICLE</virus_type>
            <virus_isolate>SPECIES</virus_isolate>
            <virus_enveloped>false</virus_enveloped>
            <virus_empty>false</virus_empty>
            <syn_species_name>NwV</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">
               <concentration units="mg/mL">60</concentration>
               <buffer>
                  <ph>8.0</ph>
                  <details>250 mM NaCl, 50 mM Tris</details>
               </buffer>
               <grid>
                  <details>1.2/1.3 C-Flat grid, plasma cleaned</details>
               </grid>
               <vitrification>
                  <cryogen_name>ETHANE</cryogen_name>
                  <chamber_temperature units="K">95</chamber_temperature>
                  <instrument>GATAN CRYOPLUNGE 3</instrument>
                  <details>Vitrification carried out at room temperature</details>
                  <method>Blot for 3 seconds before plunging</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</nominal_cs>
               <nominal_defocus_min units="&#181;m">1.0</nominal_defocus_min>
               <nominal_defocus_max units="&#181;m">3.0</nominal_defocus_max>
               <nominal_magnification>29000.0</nominal_magnification>
               <calibrated_magnification>40000.0</calibrated_magnification>
               <specimen_holder_model>GATAN LIQUID NITROGEN</specimen_holder_model>
               <alignment_procedure>
                  <legacy>
                     <astigmatism>Objective lens astigmatism was corrected at 29,000 times magnification</astigmatism>
                  </legacy>
               </alignment_procedure>
               <details>Collected in counting mode</details>
               <date>2013-11-16</date>
               <image_recording_list>
                  <image_recording>
                     <film_or_detector_model category="CCD">GATAN K2 (4k x 4k)</film_or_detector_model>
                     <number_real_images>625</number_real_images>
                     <average_electron_dose_per_image units="e/&#8491;^2">38</average_electron_dose_per_image>
                     <details>Each movie was acquired over 5 s and was comprised of 25 frames</details>
                  </image_recording>
               </image_recording_list>
               <specimen_holder>Liquid nitrogen cooled</specimen_holder>
            </single_particle_microscopy>
         </microscopy_list>
         <singleparticle_processing image_processing_id="1">
            <details>Initial data processing was performed using the Appion pipeline (including UCSF doseefgpu_driftcorr). Subsequent statistical refinement procedures and motion correction were performed using Relion.</details>
            <ctf_correction>
               <details>Each particle</details>
            </ctf_correction>
            <final_reconstruction>
               <applied_symmetry>
                  <point_group>I</point_group>
               </applied_symmetry>
               <algorithm>OTHER</algorithm>
               <resolution res_type="BY AUTHOR" units="&#8491;">3.7</resolution>
               <resolution_method>OTHER</resolution_method>
               <software_list>
                  <software>
                     <name>Relion</name>
                  </software>
               </software_list>
               <number_images_used>14884</number_images_used>
            </final_reconstruction>
         </singleparticle_processing>
      </structure_determination>
   </structure_determination_list>
   <map format="CCP4" size_kbytes="524289">
      <file>emd_2791.map.gz</file>
      <symmetry>
         <space_group>1</space_group>
      </symmetry>
      <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
      <dimensions>
         <col>512</col>
         <row>512</row>
         <sec>512</sec>
      </dimensions>
      <origin>
         <col>-256</col>
         <row>-256</row>
         <sec>-256</sec>
      </origin>
      <spacing>
         <x>512</x>
         <y>512</y>
         <z>512</z>
      </spacing>
      <cell>
         <a units="&#8491;">798.72</a>
         <b units="&#8491;">798.72</b>
         <c units="&#8491;">798.72</c>
         <alpha units="deg">90.0</alpha>
         <beta units="deg">90.0</beta>
         <gamma units="deg">90.0</gamma>
      </cell>
      <axis_order>
         <fast>X</fast>
         <medium>Y</medium>
         <slow>Z</slow>
      </axis_order>
      <statistics>
         <minimum>-0.10642233</minimum>
         <maximum>0.18355425</maximum>
         <average>0.0007166</average>
         <std>0.007305</std>
      </statistics>
      <pixel_spacing>
         <x units="&#8491;">1.56</x>
         <y units="&#8491;">1.56</y>
         <z units="&#8491;">1.56</z>
      </pixel_spacing>
      <contour_list>
         <contour primary="true">
            <level>0.042</level>
            <source>AUTHOR</source>
         </contour>
      </contour_list>
      <annotation_details>Reconstruction of Nudaurelia capensis omega virus (NwV). Binned in Fourier space from an original pixel size of 1.25</annotation_details>
      <details>::::EMDATABANK.org::::EMD-2791::::</details>
   </map>
   <interpretation>
      <figure_list>
         <figure>
            <file>emd_2791.png</file>
         </figure>
      </figure_list>
   </interpretation>
</emd>