<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" emdb_id="EMD-1907" 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>2011-06-10</deposition>
         <header_release>2011-06-30</header_release>
         <map_release>2011-06-30</map_release>
         <update>2011-06-30</update>
      </key_dates>
      <title>Electron cryo-microscopy and image reconstruction of adeno-associated virus type 2 empty capsids</title>
      <authors_list>
         <author>Kronenberg S</author>
         <author>Kleinschmidt JA</author>
         <author>Bottcher B</author>
      </authors_list>
      <keywords>AAV2, virus, empty capsids,</keywords>
   </admin>
   <crossreferences>
      <citation_list>
         <primary_citation>
            <journal_citation published="true">
               <author order="1">Kronenberg A</author>
               <author order="2">Kleinschmidt JA</author>
               <author order="3">Bottcher B</author>
               <title>Electron cryo-microscopy and image reconstruction of adeno-associated virus type 2 empty capsids.</title>
               <journal>EMBO REP.</journal>
               <volume>2</volume>
               <first_page>997</first_page>
               <last_page>1002</last_page>
               <year>2001</year>
               <external_references type="PUBMED">11713191</external_references>
               <external_references type="DOI">doi:10.1093/embo-reports/kve234</external_references>
            </journal_citation>
         </primary_citation>
      </citation_list>
   </crossreferences>
   <sample>
      <name>Adeno-associated Virus Type 2</name>
      <supramolecule_list>
         <sample_supramolecule supramolecule_id="1000">
            <name>Adeno-associated Virus Type 2</name>
            <number_unique_components>1</number_unique_components>
            <molecular_weight>
               <theoretical units="MDa">3.9</theoretical>
            </molecular_weight>
         </sample_supramolecule>
         <virus_supramolecule supramolecule_id="1">
            <name synonym="AAV2">Adeno-associated virus - 2</name>
            <sci_species_name ncbi="10804">Adeno-associated virus - 2</sci_species_name>
            <natural_host database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>VERTEBRATES</synonym_organism>
            </natural_host>
            <host_system database="NCBI">
               </host_system>
            <molecular_weight>
               <theoretical units="MDa">3.9</theoretical>
            </molecular_weight>
            <virus_shell shell_id="1">
               <name>AAV2</name>
               <diameter units="&#8491;">260</diameter>
               <triangulation>1</triangulation>
            </virus_shell>
            <virus_type>VIRUS-LIKE PARTICLE</virus_type>
            <virus_isolate>SEROTYPE</virus_isolate>
            <virus_enveloped>false</virus_enveloped>
            <virus_empty>true</virus_empty>
            <syn_species_name>AAV2</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>
                  <ph>7.5</ph>
                  <details>0.1M NaCl, 1 mM MgCl2, 10 mM Tris-HCl pH 7.5</details>
               </buffer>
               <grid>
                  <details>400 mesh copper grid, coated with holey carbon, covered with thin continuous carbon</details>
               </grid>
               <vitrification>
                  <cryogen_name>ETHANE</cryogen_name>
                  <chamber_humidity units="percentage">100</chamber_humidity>
                  <chamber_temperature units="K">77</chamber_temperature>
                  <instrument>HOMEMADE PLUNGER</instrument>
                  <details>Vitrification instrument: Controlled environment</details>
                  <method>blot for 15s before plunging</method>
               </vitrification>
            </single_particle_preparation>
         </specimen_preparation_list>
         <microscopy_list>
            <single_particle_microscopy microscopy_id="1">
               <microscope>FEI/PHILIPS CM120T</microscope>
               <illumination_mode>FLOOD BEAM</illumination_mode>
               <imaging_mode>BRIGHT FIELD</imaging_mode>
               <electron_source>LAB6</electron_source>
               <acceleration_voltage units="kV">100</acceleration_voltage>
               <nominal_cs units="mm">6.4</nominal_cs>
               <nominal_defocus_min units="&#181;m">0.81</nominal_defocus_min>
               <nominal_defocus_max units="&#181;m">1.93</nominal_defocus_max>
               <nominal_magnification>52000.0</nominal_magnification>
               <specimen_holder_model>GATAN LIQUID NITROGEN</specimen_holder_model>
               <temperature>
                  <temperature_min units="K">94</temperature_min>
                  <temperature_average units="K">94</temperature_average>
               </temperature>
               <alignment_procedure>
                  <legacy>
                     <astigmatism>At 200,000 magnification on carbon</astigmatism>
                  </legacy>
               </alignment_procedure>
               <date>2001-04-10</date>
               <image_recording_list>
                  <image_recording>
                     <film_or_detector_model category="FILM">KODAK SO-163 FILM</film_or_detector_model>
                     <digitization_details>
                        <scanner>ZEISS SCAI</scanner>
                        <sampling_interval units="&#181;m">21</sampling_interval>
                     </digitization_details>
                     <number_real_images>10</number_real_images>
                     <bits_per_pixel>8.</bits_per_pixel>
                  </image_recording>
               </image_recording_list>
               <specimen_holder>Side entry, liquid nitrogen cooled</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>Combination of defocussed maps</details>
            </ctf_correction>
            <final_reconstruction>
               <applied_symmetry>
                  <point_group>I</point_group>
               </applied_symmetry>
               <algorithm>OTHER</algorithm>
               <resolution res_type="BY AUTHOR" units="&#8491;">10.5</resolution>
               <resolution_method>FSC 0.5 CUT-OFF</resolution_method>
               <software_list>
                  <software>
                     <name>MRC</name>
                  </software>
               </software_list>
               <details>Maps were calculated for each micrograph  maps were ctf-corrected and averaged ctf-weighted  data was corrected for envelope function due to spatial aberration</details>
               <number_images_used>1800</number_images_used>
            </final_reconstruction>
         </singleparticle_processing>
      </structure_determination>
   </structure_determination_list>
   <map format="CCP4" size_kbytes="2235">
      <file>emd_1907.map.gz</file>
      <symmetry>
         <space_group>1</space_group>
      </symmetry>
      <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
      <dimensions>
         <col>83</col>
         <row>83</row>
         <sec>83</sec>
      </dimensions>
      <origin>
         <col>0</col>
         <row>0</row>
         <sec>0</sec>
      </origin>
      <spacing>
         <x>83</x>
         <y>83</y>
         <z>83</z>
      </spacing>
      <cell>
         <a units="&#8491;">348.6</a>
         <b units="&#8491;">348.6</b>
         <c units="&#8491;">348.6</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>-44.559199999999997</minimum>
         <maximum>61.091700000000003</maximum>
         <average>-0.0438755</average>
         <std>9.89312</std>
      </statistics>
      <pixel_spacing>
         <x units="&#8491;">4.2</x>
         <y units="&#8491;">4.2</y>
         <z units="&#8491;">4.2</z>
      </pixel_spacing>
      <contour_list>
         <contour primary="true">
            <level>12.0</level>
            <source>AUTHOR</source>
         </contour>
      </contour_list>
      <annotation_details>AAV-2 empty capsids</annotation_details>
      <details>::::EMDATABANK.org::::EMD-1907::::</details>
   </map>
</emd>