<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" emdb_id="EMD-3086" 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>2015-07-09</deposition>
         <header_release>2015-07-22</header_release>
         <map_release>2015-09-23</map_release>
         <update>2015-09-23</update>
      </key_dates>
      <title>negative stain EM of BG505 SOSIP.664 in complex with sCD4, 17b, and 8ANC195</title>
      <authors_list>
         <author>Scharf L</author>
         <author>Wang H</author>
         <author>Gao H</author>
         <author>Chen S</author>
         <author>McDowall A</author>
         <author>Bjorkman P</author>
      </authors_list>
      <keywords>HIV-1 Env trimer, broadly neutralizing antibody</keywords>
   </admin>
   <crossreferences>
      <citation_list>
         <primary_citation>
            <journal_citation published="true">
               <author order="1">Scharf L</author>
               <author order="2">Wang H</author>
               <author order="3">Gao H</author>
               <author order="4">Chen S</author>
               <author order="5">McDowall A</author>
               <author order="6">Bjorkman P</author>
               <title>Broadly neutralizing antibody 8ANC195 recognizes closed and open states of HIV-1 Env</title>
               <journal>CELL(CAMBRIDGE,MASS.)</journal>
               <volume>162</volume>
               <first_page>1379</first_page>
               <last_page>1390</last_page>
               <year>2015</year>
               <external_references type="PUBMED">26359989</external_references>
               <external_references type="DOI">doi:10.1016/J.CELL.2015.08.035</external_references>
            </journal_citation>
         </primary_citation>
      </citation_list>
      <pdb_list>
         <pdb_reference>
            <pdb_id>5a7x</pdb_id>
            <relationship>
               <in_frame>FULLOVERLAP</in_frame>
            </relationship>
         </pdb_reference>
      </pdb_list>
   </crossreferences>
   <sample>
      <name>soluble HIV-1 Env trimer BG505 SOSIP.664 in complex with soluble CD4s (D1-D2), broadly neutralizing antibody 17b Fabs, and broadly neutralizing antibody 8ANC195 variant G32K5 Fabs</name>
      <supramolecule_list>
         <sample_supramolecule supramolecule_id="1000">
            <name>soluble HIV-1 Env trimer BG505 SOSIP.664 in complex with soluble CD4s (D1-D2), broadly neutralizing antibody 17b Fabs, and broadly neutralizing antibody 8ANC195 variant G32K5 Fabs</name>
            <oligomeric_state>3 Fabs of 17b, 3 sCD4, and 3 Fabs of 8ANC195 G52K5 bind to Env trimer BG505 SOSIP</oligomeric_state>
            <number_unique_components>4</number_unique_components>
            <molecular_weight>
               <theoretical units="MDa">0.5</theoretical>
            </molecular_weight>
         </sample_supramolecule>
      </supramolecule_list>
      <macromolecule_list>
         <protein_or_peptide macromolecule_id="1">
            <name synonym="BG505 SOSIP">Soluble HIV-1 Env trimer BG505 SOSIP.664</name>
            <natural_source database="NCBI">
               <organism ncbi="11676">Human immunodeficiency virus 1</organism>
               <synonym_organism>HIV-1</synonym_organism>
            </natural_source>
            <molecular_weight>
               <theoretical units="MDa">0.42</theoretical>
            </molecular_weight>
            <number_of_copies>1</number_of_copies>
            <oligomeric_state>trimer</oligomeric_state>
            <recombinant_exp_flag>true</recombinant_exp_flag>
            <recombinant_expression database="NCBI">
               <recombinant_organism ncbi="9606">Homo sapiens</recombinant_organism>
               <recombinant_cell>HEK293-6E</recombinant_cell>
               <recombinant_plasmid>pTT5</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
               </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="2">
            <name synonym="17b">Fab of broadly neutralizing antibody 17b</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
            </natural_source>
            <molecular_weight>
               <theoretical units="MDa">0.05</theoretical>
            </molecular_weight>
            <number_of_copies>3</number_of_copies>
            <oligomeric_state>monomer</oligomeric_state>
            <recombinant_exp_flag>true</recombinant_exp_flag>
            <recombinant_expression database="NCBI">
               <recombinant_organism ncbi="9606">Homo sapiens</recombinant_organism>
               <recombinant_cell>HEK293-6E</recombinant_cell>
               <recombinant_plasmid>pTT5</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
               </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="3">
            <name synonym="sCD4">soluble CD4 (D1-D2 domains)</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
            </natural_source>
            <molecular_weight>
               <theoretical units="MDa">0.02</theoretical>
            </molecular_weight>
            <number_of_copies>3</number_of_copies>
            <oligomeric_state>monomer</oligomeric_state>
            <recombinant_exp_flag>true</recombinant_exp_flag>
            <recombinant_expression database="NCBI">
               <recombinant_organism ncbi="9606">Homo sapiens</recombinant_organism>
               <recombinant_cell>HEK293-6E</recombinant_cell>
               <recombinant_plasmid>pTT5</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
               </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="4">
            <name synonym="8ANC195 G52K5">Fab of broadly neutralizing antibody 8ANC195 variant G52K5</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
            </natural_source>
            <molecular_weight>
               <theoretical units="MDa">0.05</theoretical>
            </molecular_weight>
            <number_of_copies>3</number_of_copies>
            <oligomeric_state>monomer</oligomeric_state>
            <recombinant_exp_flag>true</recombinant_exp_flag>
            <recombinant_expression database="NCBI">
               <recombinant_organism ncbi="9606">Homo sapiens</recombinant_organism>
               <recombinant_cell>HEK293-6E</recombinant_cell>
               <recombinant_plasmid>pTT5</recombinant_plasmid>
            </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">
               <concentration units="mg/mL">0.01</concentration>
               <buffer>
                  <ph>8.0</ph>
                  <details>20mM Tris, 50mM NaCl</details>
               </buffer>
               <staining>
                  <type>NEGATIVE</type>
                  <details>Grids with adsorbed protein cross-linked by glutaraldehyde vapor and stained by 3% w/v uranyl acetate for 30 seconds.</details>
               </staining>
               <grid>
                  <details>glow discharged ultrathin C film on holey carbon support film, 400 mesh, Cu grids</details>
               </grid>
               <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>
               <nominal_cs units="mm">2.2</nominal_cs>
               <nominal_magnification>42000.0</nominal_magnification>
               <specimen_holder_model>SIDE ENTRY, EUCENTRIC</specimen_holder_model>
               <date>2015-04-07</date>
               <image_recording_list>
                  <image_recording>
                     <film_or_detector_model category="CCD">GATAN ULTRASCAN 1000 (2k x 2k)</film_or_detector_model>
                     <number_real_images>642</number_real_images>
                  </image_recording>
               </image_recording_list>
            </single_particle_microscopy>
         </microscopy_list>
         <singleparticle_processing image_processing_id="1">
            <details>Particle were picked using EMAN2. CTF correction was done using EMAN2. 2D and 3D classification done using Relion to select good particles. Refinement done using Relion.</details>
            <ctf_correction>
               <details>Each particle</details>
            </ctf_correction>
            <final_reconstruction>
               <applied_symmetry>
                  <point_group>C3</point_group>
               </applied_symmetry>
               <algorithm>OTHER</algorithm>
               <resolution res_type="BY AUTHOR" units="&#8491;">16.8</resolution>
               <resolution_method>OTHER</resolution_method>
               <software_list>
                  <software>
                     <name>EMAN2, Relion</name>
                  </software>
               </software_list>
               <number_images_used>7174</number_images_used>
            </final_reconstruction>
            <final_two_d_classification>
               <number_classes>25</number_classes>
            </final_two_d_classification>
         </singleparticle_processing>
      </structure_determination>
   </structure_determination_list>
   <map format="CCP4" size_kbytes="8193">
      <file>emd_3086.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>0</col>
         <row>0</row>
         <sec>0</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>-0.07877693</minimum>
         <maximum>0.0897764</maximum>
         <average>-0.00034449</average>
         <std>0.00837527</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>0.0269</level>
            <source>AUTHOR</source>
         </contour>
      </contour_list>
      <annotation_details>negative stain EM single particle analysis. The particles were picked using EMAN2. CTF correction was done using EMAN2. 2D and 3D classification was done using Relion to sort particles. The refinement and gold-standard FSC calculation was done using Relion.</annotation_details>
      <details>::::EMDATABANK.org::::EMD-3086::::</details>
   </map>
   <interpretation>
      <modelling_list>
         <modelling>
            <initial_model>
               <access_code>1RZK</access_code>
               <chain>
                  <chain_id>G</chain_id>
               </chain>
               <chain>
                  <chain_id>C</chain_id>
               </chain>
               <chain>
                  <chain_id>L</chain_id>
               </chain>
               <chain>
                  <chain_id>H</chain_id>
               </chain>
            </initial_model>
            <refinement_protocol>RIGID BODY FIT</refinement_protocol>
            <software_list>
               <software>
                  <name>Chimera</name>
               </software>
            </software_list>
            <details>Fitted by manual docking first and then using Chimera with the following options: real-time correlation/average update, and use map simulated from atoms, resolution 15 A</details>
            <refinement_space>REAL</refinement_space>
         </modelling>
         <modelling>
            <initial_model>
               <access_code>4P9M</access_code>
               <chain>
                  <chain_id>L</chain_id>
               </chain>
               <chain>
                  <chain_id>H</chain_id>
               </chain>
            </initial_model>
            <refinement_protocol>RIGID BODY FIT</refinement_protocol>
            <software_list>
               <software>
                  <name>Chimera</name>
               </software>
            </software_list>
            <details>Fitted by manual docking first and then using Chimera with the following options: real-time correlation/average update, and use map simulated from atoms, resolution 15 A</details>
            <refinement_space>REAL</refinement_space>
         </modelling>
      </modelling_list>
   </interpretation>
   <validation>
      <fsc_curve>
         <file>emd_3086_fsc.xml</file>
      </fsc_curve>
   </validation>
</emd>