<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" emdb_id="EMD-2356" 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>2013-04-10</deposition>
         <header_release>2013-04-24</header_release>
         <map_release>2013-05-08</map_release>
         <update>2013-06-19</update>
      </key_dates>
      <title>Negative staining three-dimensional reconstruction of bacteriophage T7 connector/terminase complex</title>
      <authors_list>
         <author>Dauden MI</author>
         <author>Martin-Benito J</author>
         <author>Sanchez-Ferrero JC</author>
         <author>Pulido-Cid M</author>
         <author>Valpuesta JM</author>
         <author>Carrascosa JL</author>
      </authors_list>
      <keywords>packaging motor, connector, terminase, bacteriophage, DNA translocation, Packaging, single-particle reconstruction, ATPase.</keywords>
   </admin>
   <crossreferences>
      <citation_list>
         <primary_citation>
            <journal_citation published="true">
               <author order="1">Dauden MI</author>
               <author order="2">Martin-Benito J</author>
               <author order="3">Sanchez-Ferrero JC</author>
               <author order="4">Pulido-Cid M</author>
               <author order="5">Valpuesta JM</author>
               <author order="6">Carrascosa JL</author>
               <title>Large terminase conformational change induced by connector binding in bacteriophage T7.</title>
               <journal>J.BIOL.CHEM.</journal>
               <volume>288</volume>
               <first_page>16998</first_page>
               <last_page>17007</last_page>
               <year>2013</year>
               <external_references type="PUBMED">23632014</external_references>
               <external_references type="DOI">doi:10.1074/jbc.M112.448951</external_references>
            </journal_citation>
         </primary_citation>
      </citation_list>
      <pdb_list>
         <pdb_reference>
            <pdb_id>4bil</pdb_id>
            <relationship>
               <in_frame>FULLOVERLAP</in_frame>
            </relationship>
         </pdb_reference>
      </pdb_list>
   </crossreferences>
   <sample>
      <name>Connector/terminase complex of bacteriophage T7</name>
      <supramolecule_list>
         <sample_supramolecule supramolecule_id="1000">
            <name>Connector/terminase complex of bacteriophage T7</name>
            <oligomeric_state>one homododecamer bound to one homopentamer</oligomeric_state>
            <number_unique_components>2</number_unique_components>
            <molecular_weight>
               <theoretical units="MDa">1.0</theoretical>
            </molecular_weight>
         </sample_supramolecule>
      </supramolecule_list>
      <macromolecule_list>
         <protein_or_peptide macromolecule_id="1">
            <name synonym="portal protein, gp8">connector</name>
            <natural_source database="NCBI">
               <organism ncbi="10760">Enterobacteria phage T7</organism>
            </natural_source>
            <molecular_weight>
               <theoretical units="MDa">0.7</theoretical>
            </molecular_weight>
            <details>Each monomer of the connector is a 59 kDa protein.</details>
            <number_of_copies>12</number_of_copies>
            <oligomeric_state>Dodecamer</oligomeric_state>
            <recombinant_exp_flag>true</recombinant_exp_flag>
            <recombinant_expression database="NCBI">
               <recombinant_organism ncbi="469008">Escherichia coli BL21(DE3)</recombinant_organism>
               <recombinant_strain>pLys</recombinant_strain>
               <recombinant_plasmid>pET28Aa</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
               <external_references type="UNIPROTKB">P03728</external_references>
               <external_references type="GO">GO:0019012</external_references>
            </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="2">
            <name synonym="gp19">large terminase</name>
            <natural_source database="NCBI">
               <organism ncbi="10760">Enterobacteria phage T7</organism>
               <synonym_organism>bacteriophage T7</synonym_organism>
            </natural_source>
            <molecular_weight>
               <theoretical units="MDa">0.335</theoretical>
            </molecular_weight>
            <details>Each monomer of the terminase is a 67 kDa protein</details>
            <number_of_copies>5</number_of_copies>
            <oligomeric_state>Pentamer</oligomeric_state>
            <recombinant_exp_flag>true</recombinant_exp_flag>
            <recombinant_expression database="NCBI">
               <recombinant_organism ncbi="469008">Escherichia coli BL21(DE3)</recombinant_organism>
               <recombinant_strain>pLys</recombinant_strain>
               <recombinant_plasmid>pET21(+)</recombinant_plasmid>
            </recombinant_expression>
            <sequence>
               <external_references type="UNIPROTKB">P03694</external_references>
               <external_references type="GO">GO:0090305</external_references>
               <external_references type="GO">GO:0000166</external_references>
               <external_references type="GO">GO:0004518</external_references>
               <external_references type="GO">GO:0004519</external_references>
               <external_references type="GO">GO:0005524</external_references>
            </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">
               <buffer>
                  <ph>7.4</ph>
                  <details>50 mM Sodium Phosphate buffer pH 7, 300 mM NaCl, 10 mM MgCl2, 1 mM ADP, 5 mM DTT and 20% (v/v) glycerol.</details>
               </buffer>
               <staining>
                  <type>NEGATIVE</type>
                  <details>GraFix-fixated proteins stained on 2% w/v uranyl acetate for 1 min.</details>
               </staining>
               <grid>
                  <details>Cu-collodion grids with thin carbon support, glow discharged.</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 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">2.26</nominal_cs>
               <nominal_defocus_min units="&#181;m">1.5</nominal_defocus_min>
               <nominal_defocus_max units="&#181;m">3.2</nominal_defocus_max>
               <nominal_magnification>67000.0</nominal_magnification>
               <specimen_holder_model>SIDE ENTRY, EUCENTRIC</specimen_holder_model>
               <alignment_procedure>
                  <legacy>
                     <astigmatism>FFT live</astigmatism>
                  </legacy>
               </alignment_procedure>
               <date>2011-07-07</date>
               <image_recording_list>
                  <image_recording>
                     <film_or_detector_model category="CCD">FEI EAGLE (4k x 4k)</film_or_detector_model>
                     <digitization_details>
                        <sampling_interval units="&#181;m">15</sampling_interval>
                     </digitization_details>
                     <number_real_images>573</number_real_images>
                     <bits_per_pixel>16.</bits_per_pixel>
                  </image_recording>
               </image_recording_list>
               <specimen_holder>GATAN conventional holder</specimen_holder>
            </single_particle_microscopy>
         </microscopy_list>
         <singleparticle_processing image_processing_id="1">
            <details>The particles were selected using Maximum Likelihood procedures form an initial set of 10034 particles.</details>
            <ctf_correction>
               <details>Each plate</details>
            </ctf_correction>
            <final_reconstruction>
               <applied_symmetry>
                  <point_group>C5</point_group>
               </applied_symmetry>
               <algorithm>OTHER</algorithm>
               <resolution res_type="BY AUTHOR" units="&#8491;">29.0</resolution>
               <resolution_method>FSC 0.33 CUT-OFF</resolution_method>
               <software_list>
                  <software>
                     <name>XMIPP, EMAN, Spider</name>
                  </software>
               </software_list>
               <number_images_used>837</number_images_used>
            </final_reconstruction>
            <final_angle_assignment>
               <details>SPIDER</details>
            </final_angle_assignment>
         </singleparticle_processing>
      </structure_determination>
   </structure_determination_list>
   <map format="CCP4" size_kbytes="5489">
      <file>emd_2356.map.gz</file>
      <symmetry>
         <space_group>1</space_group>
      </symmetry>
      <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
      <dimensions>
         <col>112</col>
         <row>112</row>
         <sec>112</sec>
      </dimensions>
      <origin>
         <col>0</col>
         <row>0</row>
         <sec>0</sec>
      </origin>
      <spacing>
         <x>112</x>
         <y>112</y>
         <z>112</z>
      </spacing>
      <cell>
         <a units="&#8491;">470.39996</a>
         <b units="&#8491;">470.39996</b>
         <c units="&#8491;">470.39996</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>-0.02651265</minimum>
         <maximum>0.06766804</maximum>
         <average>-0.00067221</average>
         <std>0.00622457</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>0.0248</level>
            <source>AUTHOR</source>
         </contour>
      </contour_list>
      <annotation_details>Reconstruction of the connector/terminase complex, which presents two different symmetries (c12 and c5 respectively).</annotation_details>
      <details>::::EMDATABANK.org::::EMD-2356::::</details>
   </map>
   <interpretation>
      <modelling_list>
         <modelling>
            <initial_model>
               <access_code>3CPE</access_code>
               <chain>
                  <chain_id>A</chain_id>
               </chain>
               <chain>
                  <chain_id>B</chain_id>
               </chain>
               <chain>
                  <chain_id>C</chain_id>
               </chain>
               <chain>
                  <chain_id>D</chain_id>
               </chain>
               <chain>
                  <chain_id>E</chain_id>
               </chain>
            </initial_model>
            <refinement_protocol>RIGID BODY FIT</refinement_protocol>
            <software_list>
               <software>
                  <name>Chimera, SITUS</name>
               </software>
            </software_list>
            <details>3CPE PDB was used as a model for the generation of the threading model of gp19 in the complex conformation.</details>
            <refinement_space>REAL</refinement_space>
         </modelling>
      </modelling_list>
   </interpretation>
</emd>