<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" emdb_id="EMD-1248" 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>2006-06-23</deposition>
         <header_release>2006-07-26</header_release>
         <map_release>2006-07-26</map_release>
         <update>2014-03-19</update>
      </key_dates>
      <title>The cryo-EM structure of a translation initiation complex from Escherichia coli.</title>
      <authors_list>
         <author>Allen GS</author>
         <author>Zavialov A</author>
         <author>Gursky R</author>
         <author>Ehrenberg M</author>
         <author>Frank J</author>
      </authors_list>
      <keywords>
         </keywords>
   </admin>
   <crossreferences>
      <citation_list>
         <primary_citation>
            <journal_citation published="true">
               <author order="1">Allen GS</author>
               <author order="2">Zavialov A</author>
               <author order="3">Gursky R</author>
               <author order="4">Ehrenberg M</author>
               <author order="5">Frank J</author>
               <title>The cryo-EM structure of a translation initiation complex from Escherichia coli.</title>
               <journal>CELL(CAMBRIDGE,MASS.)</journal>
               <volume>121</volume>
               <first_page>703</first_page>
               <last_page>712</last_page>
               <year>2005</year>
               <external_references type="PUBMED">15935757</external_references>
               <external_references type="DOI">doi:10.1016/j.cell.2005.03.023</external_references>
            </journal_citation>
         </primary_citation>
      </citation_list>
      <pdb_list>
         <pdb_reference>
            <pdb_id>1zo1</pdb_id>
            <relationship>
               <in_frame>FULLOVERLAP</in_frame>
            </relationship>
         </pdb_reference>
         <pdb_reference>
            <pdb_id>1zo3</pdb_id>
            <relationship>
               <in_frame>FULLOVERLAP</in_frame>
            </relationship>
         </pdb_reference>
      </pdb_list>
   </crossreferences>
   <sample>
      <name>E. coli 70S, IF1, IF3, mRNA, fMet-tRNA, and IF2-GDPNP</name>
      <supramolecule_list>
         <sample_supramolecule supramolecule_id="1000">
            <name>E. coli 70S, IF1, IF3, mRNA, fMet-tRNA, and IF2-GDPNP</name>
            <oligomeric_state>One of each component binds to the 70S</oligomeric_state>
            <number_unique_components>7</number_unique_components>
         </sample_supramolecule>
         <complex_supramolecule supramolecule_id="1">
            <name>30S</name>
            <recombinant_exp_flag>false</recombinant_exp_flag>
            <natural_source database="NCBI">
               <organism ncbi="562">Escherichia coli</organism>
            </natural_source>
            <recombinant_expression database="NCBI">
               </recombinant_expression>
            <ribosome-details>ribosome-prokaryote: SSU 30S</ribosome-details>
         </complex_supramolecule>
         <complex_supramolecule supramolecule_id="2">
            <name>50s</name>
            <recombinant_exp_flag>false</recombinant_exp_flag>
            <natural_source database="NCBI">
               <organism ncbi="562">Escherichia coli</organism>
            </natural_source>
            <recombinant_expression database="NCBI">
               </recombinant_expression>
            <ribosome-details>ribosome-prokaryote: LSU 50S</ribosome-details>
         </complex_supramolecule>
      </supramolecule_list>
      <macromolecule_list>
         <rna macromolecule_id="1">
            <name>fmet-tRNA</name>
            <natural_source database="NCBI">
               <organism ncbi="562">Escherichia coli</organism>
            </natural_source>
            <classification>TRANSFER</classification>
            <structure>DOUBLE HELIX</structure>
            <synthetic_flag>false</synthetic_flag>
         </rna>
         <protein_or_peptide macromolecule_id="2">
            <name>beta IF2-GDPNP</name>
            <natural_source database="NCBI">
               <organism ncbi="562">Escherichia coli</organism>
            </natural_source>
            <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="562">Escherichia coli</recombinant_organism>
            </recombinant_expression>
            <sequence>
               </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="3">
            <name>IF1</name>
            <natural_source database="NCBI">
               <organism ncbi="562">Escherichia coli</organism>
            </natural_source>
            <number_of_copies>1</number_of_copies>
            <oligomeric_state>1</oligomeric_state>
            <recombinant_exp_flag>true</recombinant_exp_flag>
            <recombinant_expression database="NCBI">
               <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
            </recombinant_expression>
            <sequence>
               </sequence>
         </protein_or_peptide>
         <protein_or_peptide macromolecule_id="4">
            <name>IF3</name>
            <natural_source database="NCBI">
               <organism ncbi="562">Escherichia coli</organism>
            </natural_source>
            <number_of_copies>1</number_of_copies>
            <oligomeric_state>1</oligomeric_state>
            <recombinant_exp_flag>true</recombinant_exp_flag>
            <recombinant_expression database="NCBI">
               <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
            </recombinant_expression>
            <sequence>
               </sequence>
         </protein_or_peptide>
         <rna macromolecule_id="5">
            <name>mRNA</name>
            <natural_source database="NCBI">
               <organism ncbi="562">Escherichia coli</organism>
            </natural_source>
            <classification>OTHER</classification>
            <structure>SINGLE STRANDED</structure>
            <synthetic_flag>true</synthetic_flag>
         </rna>
      </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>7.6</ph>
                  <details>polymix buffer</details>
               </buffer>
               <grid>
                  <details>Quantifoil</details>
               </grid>
               <vitrification>
                  <cryogen_name>ETHANE</cryogen_name>
                  <chamber_humidity units="percentage">90</chamber_humidity>
                  <chamber_temperature units="K">100</chamber_temperature>
                  <instrument>OTHER</instrument>
                  <details>Vitrification instrument: Vitrobot</details>
                  <method>2 second blot</method>
               </vitrification>
            </single_particle_preparation>
         </specimen_preparation_list>
         <microscopy_list>
            <single_particle_microscopy microscopy_id="1">
               <microscope>FEI TECNAI F30</microscope>
               <illumination_mode>FLOOD BEAM</illumination_mode>
               <imaging_mode>BRIGHT FIELD</imaging_mode>
               <electron_source>FIELD EMISSION GUN</electron_source>
               <acceleration_voltage units="kV">300</acceleration_voltage>
               <nominal_cs units="mm">2.26</nominal_cs>
               <nominal_defocus_min units="&#181;m">0.93</nominal_defocus_min>
               <nominal_defocus_max units="&#181;m">3.93</nominal_defocus_max>
               <nominal_magnification>39000.0</nominal_magnification>
               <calibrated_magnification>39000.0</calibrated_magnification>
               <specimen_holder_model>GATAN HELIUM</specimen_holder_model>
               <temperature>
                  <temperature_average units="K">80</temperature_average>
               </temperature>
               <date>2003-07-04</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">14</sampling_interval>
                     </digitization_details>
                     <number_real_images>116</number_real_images>
                     <od_range>1.2</od_range>
                     <bits_per_pixel>12.</bits_per_pixel>
                  </image_recording>
               </image_recording_list>
               <specimen_holder>cryo stage</specimen_holder>
            </single_particle_microscopy>
         </microscopy_list>
         <singleparticle_processing image_processing_id="1">
            <details>automated particle picking followed by manual verification</details>
            <ctf_correction>
               <details>defocus groups</details>
            </ctf_correction>
            <final_reconstruction>
               <applied_symmetry>
                  <point_group>C1</point_group>
               </applied_symmetry>
               <algorithm>OTHER</algorithm>
               <resolution res_type="BY AUTHOR" units="&#8491;">13.8</resolution>
               <resolution_method>FSC 0.5 CUT-OFF</resolution_method>
               <software_list>
                  <software>
                     <name>SPIDER</name>
                  </software>
               </software_list>
               <details>The falloff of Fourier amplitudes toward higher spatial
        frequencies was corrected using the x-ray solution scattering
        intensity distribution of 70S ribosomes from E. coli during each
        round of refinement.</details>
               <number_images_used>20283</number_images_used>
            </final_reconstruction>
         </singleparticle_processing>
      </structure_determination>
   </structure_determination_list>
   <map format="CCP4" size_kbytes="8584">
      <file>emd_1248.map.gz</file>
      <symmetry>
         <space_group>1</space_group>
      </symmetry>
      <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
      <dimensions>
         <col>130</col>
         <row>130</row>
         <sec>130</sec>
      </dimensions>
      <origin>
         <col>-65</col>
         <row>-65</row>
         <sec>-65</sec>
      </origin>
      <spacing>
         <x>130</x>
         <y>130</y>
         <z>130</z>
      </spacing>
      <cell>
         <a units="&#8491;">366.6</a>
         <b units="&#8491;">366.6</b>
         <c units="&#8491;">366.6</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>-66.6267</minimum>
         <maximum>212.468999999999994</maximum>
         <average>4.02043</average>
         <std>25.465199999999999</std>
      </statistics>
      <pixel_spacing>
         <x units="&#8491;">2.82</x>
         <y units="&#8491;">2.82</y>
         <z units="&#8491;">2.82</z>
      </pixel_spacing>
      <contour_list>
         <contour primary="true">
            <level>63.5</level>
         </contour>
      </contour_list>
      <annotation_details>This is a 3D volume map of an E. coli 70S
      translation initiation complex</annotation_details>
      <details>::::EMDATABANK.org::::EMD-1248::::</details>
   </map>
   <interpretation>
      <modelling_list>
         <modelling>
            <refinement_protocol>RIGID BODY FIT</refinement_protocol>
            <software_list>
               <software>
                  <name>RSRef</name>
               </software>
            </software_list>
            <details>Protocol: real-space refinement of rigid bodies. IF2 and IF1 were initially fit by hand in O then refined by RSRef</details>
            <target_criteria>correlation coefficient</target_criteria>
            <refinement_space>REAL</refinement_space>
         </modelling>
      </modelling_list>
   </interpretation>
</emd>