<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" emdb_id="EMD-2532" 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>2013-12-17</deposition>
         <header_release>2014-01-15</header_release>
         <map_release>2014-08-27</map_release>
         <update>2016-03-09</update>
      </key_dates>
      <title>Tomographic subvolume average of EFF-1 fusogen on extracellular vesicles</title>
      <authors_list>
         <author>Zeev-Ben-Mordehai T</author>
         <author>Vasishtan D</author>
         <author>Siebert CA</author>
         <author>Grunewald K</author>
      </authors_list>
      <keywords>cell-cell fusion, extracellular fusion, membrane fusion, fusogen, pre-fusion state</keywords>
   </admin>
   <crossreferences>
      <citation_list>
         <primary_citation>
            <journal_citation published="true">
               <author order="1">Zeev-Ben-Mordehai T Vasishtan D Siebert CA Gruenewald K</author>
               <title>The full-length cell-cell fusogen EFF-1 is monomeric and upright on the membrane.</title>
               <journal>NAT.COMMUN.</journal>
               <volume>5</volume>
               <first_page>3912</first_page>
               <last_page>3912</last_page>
               <year>2014</year>
               <external_references type="PUBMED">24867324</external_references>
               <external_references type="DOI">doi:10.1038/ncomms4912</external_references>
            </journal_citation>
         </primary_citation>
      </citation_list>
   </crossreferences>
   <sample>
      <name>Epithelial fusion failure 1 (EFF-1) Isoform A on extracellular vesicles</name>
      <supramolecule_list>
         <sample_supramolecule supramolecule_id="1000">
            <name>Epithelial fusion failure 1 (EFF-1) Isoform A on extracellular vesicles</name>
            <oligomeric_state>Monomer</oligomeric_state>
            <number_unique_components>1</number_unique_components>
            <molecular_weight>
               <theoretical units="MDa">0.087</theoretical>
            </molecular_weight>
         </sample_supramolecule>
      </supramolecule_list>
      <macromolecule_list>
         <protein_or_peptide macromolecule_id="1">
            <name synonym="EFF-1a">Epithelial fusion failure 1, isoform a</name>
            <natural_source database="NCBI">
               <organism ncbi="6239">Caenorhabditis elegans</organism>
               <cell>BHK 21</cell>
               <organelle>Extracellular vesicles</organelle>
               <cellular_location>Extracellular vesicles</cellular_location>
            </natural_source>
            <molecular_weight>
               <theoretical units="MDa">0.087</theoretical>
            </molecular_weight>
            <details>Proteins on extracellular vesicles</details>
            <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="10029">Cricetulus griseus</recombinant_organism>
               <recombinant_cell>BHK 21</recombinant_cell>
               <recombinant_plasmid>pCAGGS</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
               <external_references type="UNIPROTKB">G5ECA1</external_references>
               <external_references type="GO">GO:0045026</external_references>
               <external_references type="GO">GO:0000768</external_references>
               <external_references type="GO">GO:0005887</external_references>
               <external_references type="GO">GO:0005576</external_references>
               <external_references type="GO">GO:0042802</external_references>
            </sequence>
         </protein_or_peptide>
      </macromolecule_list>
   </sample>
   <structure_determination_list>
      <structure_determination structure_determination_id="1">
         <method>subtomogramAveraging</method>
         <aggregation_state>particle</aggregation_state>
         <specimen_preparation_list>
            <subtomogram_averaging_preparation preparation_id="1">
               <buffer>
                  <ph>7.4</ph>
                  <details>25mM HEPES, 130mM NaCl</details>
               </buffer>
               <grid>
                  <details>Holey carbon on top of 200 mesh gold grid.</details>
               </grid>
               <vitrification>
                  <cryogen_name>ETHANE-PROPANE MIXTURE</cryogen_name>
                  <chamber_temperature units="K">77</chamber_temperature>
                  <instrument>HOMEMADE PLUNGER</instrument>
                  <method>Blot for 3 seconds before plunging</method>
               </vitrification>
            </subtomogram_averaging_preparation>
         </specimen_preparation_list>
         <microscopy_list>
            <subtomogram_averaging_microscopy microscopy_id="1">
               <microscope>FEI POLARA 300</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">2.0</nominal_defocus_min>
               <nominal_defocus_max units="&#181;m">2.0</nominal_defocus_max>
               <nominal_magnification>95000.0</nominal_magnification>
               <calibrated_magnification>78950.0</calibrated_magnification>
               <specimen_holder_model>GATAN HELIUM</specimen_holder_model>
               <temperature>
                  <temperature_min units="K">80</temperature_min>
                  <temperature_max units="K">100</temperature_max>
                  <temperature_average units="K">85</temperature_average>
               </temperature>
               <alignment_procedure>
                  <legacy>
                     <astigmatism>Objective lens astigmatism was corrected at 115,000 times magnification</astigmatism>
                     <electron_beam_tilt_params>+1 to -1 mradians</electron_beam_tilt_params>
                  </legacy>
               </alignment_procedure>
               <specialist_optics>
                  <energy_filter>
                     <name>Gatan Quantum 964</name>
                     <lower_energy_threshold units="eV">0.0</lower_energy_threshold>
                     <upper_energy_threshold units="eV">20.0</upper_energy_threshold>
                  </energy_filter>
               </specialist_optics>
               <date>2013-03-03</date>
               <image_recording_list>
                  <image_recording>
                     <film_or_detector_model category="CCD">GATAN ULTRASCAN 4000 (4k x 4k)</film_or_detector_model>
                     <digitization_details>
                        <sampling_interval units="&#181;m">30</sampling_interval>
                     </digitization_details>
                     <number_real_images>39</number_real_images>
                     <average_electron_dose_per_image units="e/&#8491;^2">60</average_electron_dose_per_image>
                     <details>1 tomogram created from 39 projection images</details>
                     <bits_per_pixel>16.</bits_per_pixel>
                  </image_recording>
               </image_recording_list>
               <specimen_holder>Liquid nitrogen cooled</specimen_holder>
               <tilt_series>
                  <axis1>
                     <min_angle units="deg">-60</min_angle>
                     <max_angle units="deg">60</max_angle>
                  </axis1>
               </tilt_series>
            </subtomogram_averaging_microscopy>
         </microscopy_list>
         <subtomogram_averaging_processing image_processing_id="1">
            <details>Subtomograms were selected using a semi-automated picking algorithm</details>
            <final_reconstruction>
               <applied_symmetry>
                  <point_group>C1</point_group>
               </applied_symmetry>
               <algorithm>OTHER</algorithm>
               <resolution res_type="BY AUTHOR" units="&#8491;">45.0</resolution>
               <resolution_method>OTHER</resolution_method>
               <software_list>
                  <software>
                     <name>PEET</name>
                  </software>
               </software_list>
               <number_subtomograms_used>642</number_subtomograms_used>
            </final_reconstruction>
            <final_three_d_classification>
               <number_classes>1</number_classes>
            </final_three_d_classification>
         </subtomogram_averaging_processing>
      </structure_determination>
   </structure_determination_list>
   <map format="CCP4" size_kbytes="2849">
      <file>emd_2532.map.gz</file>
      <symmetry>
         <space_group>1</space_group>
      </symmetry>
      <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
      <dimensions>
         <col>90</col>
         <row>90</row>
         <sec>90</sec>
      </dimensions>
      <origin>
         <col>0</col>
         <row>0</row>
         <sec>0</sec>
      </origin>
      <spacing>
         <x>90</x>
         <y>90</y>
         <z>90</z>
      </spacing>
      <cell>
         <a units="&#8491;">342.0</a>
         <b units="&#8491;">342.0</b>
         <c units="&#8491;">342.0</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>-27.659746169999998</minimum>
         <maximum>28.373277659999999</maximum>
         <average>-1.53535283</average>
         <std>2.44306612</std>
      </statistics>
      <pixel_spacing>
         <x units="&#8491;">3.8</x>
         <y units="&#8491;">3.8</y>
         <z units="&#8491;">3.8</z>
      </pixel_spacing>
      <contour_list>
         <contour primary="true">
            <level>13.0</level>
            <source>AUTHOR</source>
         </contour>
      </contour_list>
      <annotation_details>Tomographic subvolume average of EFF-1 on nanotubular extracellular vesicles</annotation_details>
      <details>::::EMDATABANK.org::::EMD-2532::::</details>
   </map>
   <validation>
      <fsc_curve>
         <file>emd_2532_fsc.xml</file>
      </fsc_curve>
   </validation>
</emd>