<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" emdb_id="EMD-2320" 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>2013-02-26</deposition>
         <header_release>2013-04-03</header_release>
         <map_release>2014-03-12</map_release>
         <update>2014-03-12</update>
      </key_dates>
      <title>CryoEM Structure of keyhole limpet hemocyanin isoform 2 (KLH2)</title>
      <authors_list>
         <author>Gatsogiannis C</author>
         <author>Schnittger E</author>
         <author>Markl SJ</author>
         <author>Depoix F</author>
         <author>Markl J</author>
      </authors_list>
      <keywords>hemocyanin, respiratory protein, quaternary structure, Mollusca, keyhole limpet hemocyanin</keywords>
   </admin>
   <crossreferences>
      <citation_list>
         <primary_citation>
            <journal_citation published="false">
               <author order="1">Gatsogiannis C</author>
               <author order="2">Schnittger E</author>
               <author order="3">Markl SJ</author>
               <author order="4">Depoix F</author>
               <author order="5">Markl J</author>
               <title>CryoEM Structure of keyhole limpet hemocyanin isoform 2 (KLH2)</title>
               <journal>To Be Published</journal>
            </journal_citation>
         </primary_citation>
      </citation_list>
   </crossreferences>
   <sample>
      <name>Keyhole Limpet Hemocyanin Isoform 2 (KLH2)</name>
      <supramolecule_list>
         <sample_supramolecule supramolecule_id="1000">
            <name>Keyhole Limpet Hemocyanin Isoform 2 (KLH2)</name>
            <oligomeric_state>KLH2 is a dodecamer of a 400 kDa subunit. Each subunit is composed by 8 paralogous O2 binding functional units</oligomeric_state>
            <number_unique_components>1</number_unique_components>
            <molecular_weight>
               <experimental units="MDa">8</experimental>
               <theoretical units="MDa">8</theoretical>
               <method>Predicted from the primary structure of the subunit</method>
            </molecular_weight>
         </sample_supramolecule>
      </supramolecule_list>
      <macromolecule_list>
         <protein_or_peptide macromolecule_id="1">
            <name synonym="KLH2">keyhole limpet hemocyanin2</name>
            <natural_source database="NCBI">
               <organism ncbi="55429">Megathura crenulata</organism>
               <synonym_organism>Giant keyhole limpet</synonym_organism>
               <tissue>hemolymph</tissue>
            </natural_source>
            <molecular_weight>
               <experimental units="MDa">8</experimental>
               <theoretical units="MDa">8</theoretical>
            </molecular_weight>
            <number_of_copies>20</number_of_copies>
            <oligomeric_state>dodecamer</oligomeric_state>
            <recombinant_exp_flag>false</recombinant_exp_flag>
            <recombinant_expression database="NCBI">
               </recombinant_expression>
            <sequence>
               <external_references type="UNIPROTKB">Q6KC55</external_references>
               <external_references type="INTERPRO">IPR002227</external_references>
               <external_references type="INTERPRO">IPR008922</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>0,05 M Tris, 0,15 M NaCl, 5 mM MgCl2, 5 mM CaCl2</details>
               </buffer>
               <vitrification>
                  <cryogen_name>ETHANE</cryogen_name>
                  <chamber_humidity units="percentage">90</chamber_humidity>
                  <chamber_temperature units="K">100</chamber_temperature>
                  <instrument>GATAN CRYOPLUNGE 3</instrument>
               </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_defocus_min units="&#181;m">0.0013</nominal_defocus_min>
               <nominal_defocus_max units="&#181;m">0.0034</nominal_defocus_max>
               <nominal_magnification>49000.0</nominal_magnification>
               <specimen_holder_model>GATAN LIQUID NITROGEN</specimen_holder_model>
               <date>2008-08-20</date>
               <image_recording_list>
                  <image_recording>
                     <film_or_detector_model category="FILM">KODAK SO-163 FILM</film_or_detector_model>
                     <digitization_details>
                        <scanner>PRIMESCAN</scanner>
                     </digitization_details>
                     <number_real_images>210</number_real_images>
                  </image_recording>
               </image_recording_list>
            </single_particle_microscopy>
         </microscopy_list>
         <singleparticle_processing image_processing_id="1">
            <ctf_correction>
               <details>Each Particle</details>
            </ctf_correction>
            <final_reconstruction>
               <applied_symmetry>
                  <point_group>D5</point_group>
               </applied_symmetry>
               <algorithm>OTHER</algorithm>
               <resolution res_type="BY AUTHOR" units="&#8491;">10.4</resolution>
               <resolution_method>FSC 0.5 CUT-OFF</resolution_method>
               <software_list>
                  <software>
                     <name>IMAGIC-5</name>
                  </software>
               </software_list>
               <number_images_used>11379</number_images_used>
            </final_reconstruction>
         </singleparticle_processing>
      </structure_determination>
   </structure_determination_list>
   <map format="CCP4" size_kbytes="148177">
      <file>emd_2320.map.gz</file>
      <symmetry>
         <space_group>1</space_group>
      </symmetry>
      <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
      <dimensions>
         <col>336</col>
         <row>336</row>
         <sec>336</sec>
      </dimensions>
      <origin>
         <col>-170</col>
         <row>-170</row>
         <sec>-170</sec>
      </origin>
      <spacing>
         <x>336</x>
         <y>336</y>
         <z>336</z>
      </spacing>
      <cell>
         <a units="&#8491;">504.0</a>
         <b units="&#8491;">504.0</b>
         <c units="&#8491;">504.0</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>-1.11162174</minimum>
         <maximum>1.21687198</maximum>
         <average>0.01244435</average>
         <std>0.18030365</std>
      </statistics>
      <pixel_spacing>
         <x units="&#8491;">1.5</x>
         <y units="&#8491;">1.5</y>
         <z units="&#8491;">1.5</z>
      </pixel_spacing>
      <contour_list>
         <contour primary="true">
            <level>0.24</level>
            <source>AUTHOR</source>
         </contour>
      </contour_list>
      <annotation_details>Reconstruction of keyhole limpet hemocyanin isoform 2</annotation_details>
      <details>::::EMDATABANK.org::::EMD-2320::::</details>
   </map>
</emd>