<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" emdb_id="EMD-2657" 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>2014-05-20</deposition>
         <header_release>2014-06-11</header_release>
         <map_release>2015-06-17</map_release>
         <update>2015-06-17</update>
      </key_dates>
      <title>TEM of uncleaved soluble HIV envelope proteins</title>
      <authors_list>
         <author>Arnold P</author>
         <author>Himmels P</author>
         <author>Weiss S</author>
         <author>Decker TM</author>
         <author>Markl J</author>
         <author>Gatterdam V</author>
         <author>Tampe R</author>
         <author>Bartholomeaus P</author>
         <author>Dietrich U</author>
         <author>Duerr R</author>
      </authors_list>
      <keywords>HIV-1, Soluble gp140 Env, CXCR4, CCR5,</keywords>
   </admin>
   <crossreferences>
      <citation_list>
         <primary_citation>
            <journal_citation published="false">
               <author order="1">Arnold P</author>
               <author order="2">Himmels P</author>
               <author order="3">Weiss S</author>
               <author order="4">Decker TM</author>
               <author order="5">Markl J</author>
               <author order="6">Gatterdam V</author>
               <author order="7">Tampe R</author>
               <author order="8">Bartholomeaus P</author>
               <author order="9">Dietrich U</author>
               <author order="10">Duerr R</author>
               <title>Antigenic and 3D structural characterization of soluble X4 and hybrid X4-R5 HIV-1 Env trimers</title>
               <journal>To Be Published</journal>
            </journal_citation>
         </primary_citation>
      </citation_list>
   </crossreferences>
   <sample>
      <name>NL4-3</name>
      <supramolecule_list>
         <sample_supramolecule supramolecule_id="1000">
            <name>NL4-3</name>
            <oligomeric_state>trimer</oligomeric_state>
            <number_unique_components>1</number_unique_components>
         </sample_supramolecule>
      </supramolecule_list>
      <macromolecule_list>
         <protein_or_peptide macromolecule_id="1">
            <name>HIV env protein</name>
            <natural_source database="NCBI">
               <organism ncbi="11676">Human immunodeficiency virus 1</organism>
               <synonym_organism>HIV-1</synonym_organism>
            </natural_source>
            <recombinant_exp_flag>true</recombinant_exp_flag>
            <recombinant_expression database="NCBI">
               </recombinant_expression>
            <sequence>
               </sequence>
         </protein_or_peptide>
      </macromolecule_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">
               <vitrification>
                  <cryogen_name>NONE</cryogen_name>
                  <instrument>OTHER</instrument>
               </vitrification>
            </single_particle_preparation>
         </specimen_preparation_list>
         <microscopy_list>
            <single_particle_microscopy microscopy_id="1">
               <microscope>FEI TECNAI 12</microscope>
               <illumination_mode>FLOOD BEAM</illumination_mode>
               <imaging_mode>BRIGHT FIELD</imaging_mode>
               <electron_source>LAB6</electron_source>
               <acceleration_voltage units="kV">120</acceleration_voltage>
               <specimen_holder_model>SIDE ENTRY, EUCENTRIC</specimen_holder_model>
               <date>2013-05-01</date>
               <image_recording_list>
                  <image_recording>
                     <film_or_detector_model category="CCD">TVIPS TEMCAM-F416 (4k x 4k)</film_or_detector_model>
                  </image_recording>
               </image_recording_list>
            </single_particle_microscopy>
         </microscopy_list>
         <singleparticle_processing image_processing_id="1">
            <final_reconstruction>
               <applied_symmetry>
                  <point_group>C3</point_group>
               </applied_symmetry>
               <resolution res_type="BY AUTHOR" units="&#8491;">25.0</resolution>
               <resolution_method>OTHER</resolution_method>
               <number_images_used>3000</number_images_used>
            </final_reconstruction>
         </singleparticle_processing>
      </structure_determination>
   </structure_determination_list>
   <map format="CCP4" size_kbytes="8193">
      <file>emd_2657.map.gz</file>
      <symmetry>
         <space_group>1</space_group>
      </symmetry>
      <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
      <dimensions>
         <col>128</col>
         <row>128</row>
         <sec>128</sec>
      </dimensions>
      <origin>
         <col>-26</col>
         <row>-26</row>
         <sec>-26</sec>
      </origin>
      <spacing>
         <x>128</x>
         <y>128</y>
         <z>128</z>
      </spacing>
      <cell>
         <a units="&#8491;">320.0</a>
         <b units="&#8491;">320.0</b>
         <c units="&#8491;">320.0</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>-0.00001445</minimum>
         <maximum>11.189914699999999</maximum>
         <average>0.04519726</average>
         <std>0.46946228</std>
      </statistics>
      <pixel_spacing>
         <x units="&#8491;">2.5</x>
         <y units="&#8491;">2.5</y>
         <z units="&#8491;">2.5</z>
      </pixel_spacing>
      <contour_list>
         <contour primary="true">
            <level>4.0</level>
            <source>AUTHOR</source>
         </contour>
      </contour_list>
      <annotation_details>Reconstruction of soluble uncleved part of a CXCR4 tropic env trimer</annotation_details>
      <details>::::EMDATABANK.org::::EMD-2657::::</details>
   </map>
   <interpretation>
      <modelling_list>
         <modelling>
            <initial_model>
               <access_code>2ny7</access_code>
            </initial_model>
            <refinement_protocol>RIGID BODY FIT</refinement_protocol>
            <refinement_space>REAL</refinement_space>
         </modelling>
      </modelling_list>
   </interpretation>
</emd>