<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" emdb_id="EMD-1776" 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>2010-08-31</deposition>
         <header_release>2010-09-10</header_release>
         <map_release>2010-09-10</map_release>
         <update>2012-09-19</update>
      </key_dates>
      <title>The eye lens chaperone alphaB-crystallin forms defined globular, 24meric assemblies</title>
      <authors_list>
         <author>Peschek J</author>
         <author>Braun N</author>
         <author>Franzmann TM</author>
         <author>Georgalis Y</author>
         <author>Haslbeck M</author>
         <author>Weinkauf S</author>
         <author>Buchner J</author>
      </authors_list>
      <keywords>Molecular chaperone, Protein Aggregation,  Small Heat Shock Protein, Stress Response</keywords>
   </admin>
   <crossreferences>
      <citation_list>
         <primary_citation>
            <journal_citation published="true">
               <author order="1">Peschek J</author>
               <author order="2">Braun N</author>
               <author order="3">Franzmann TM</author>
               <author order="4">Georgalis Y</author>
               <author order="5">Haslbeck M</author>
               <author order="6">Weinkauf S</author>
               <author order="7">Buchner J</author>
               <title>The eye lens chaperone alpha-crystallin forms defined globular assemblies.</title>
               <journal>PROC.NAT.ACAD.SCI.USA</journal>
               <volume>106</volume>
               <first_page>13272</first_page>
               <last_page>13277</last_page>
               <year>2009</year>
               <external_references type="PUBMED">19651604</external_references>
               <external_references type="DOI">doi:10.1073/pnas.0902651106</external_references>
            </journal_citation>
         </primary_citation>
      </citation_list>
   </crossreferences>
   <sample>
      <name>Human alphaB crystallin</name>
      <supramolecule_list>
         <sample_supramolecule supramolecule_id="1000">
            <name>Human alphaB crystallin</name>
            <oligomeric_state>24-mer</oligomeric_state>
            <number_unique_components>1</number_unique_components>
            <molecular_weight>
               <theoretical units="MDa">0.485</theoretical>
            </molecular_weight>
         </sample_supramolecule>
      </supramolecule_list>
      <macromolecule_list>
         <protein_or_peptide macromolecule_id="1">
            <name synonym="Small heat shock protein">alphaB crystallin</name>
            <natural_source database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>Human</synonym_organism>
            </natural_source>
            <number_of_copies>24</number_of_copies>
            <oligomeric_state>24mer</oligomeric_state>
            <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">
               <concentration units="mg/mL">0.05</concentration>
               <buffer>
                  <ph>7.4</ph>
                  <details>137mM NaCl, 2.7mM KCl, 12 mM PBS</details>
               </buffer>
               <staining>
                  <type>NEGATIVE</type>
                  <details>Samples were negatively stained for 30s using Ammonium Molybdate solution pH 5.5</details>
               </staining>
               <grid>
                  <details>300 mesh carbon-coated copper 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>JEOL 100CX</microscope>
               <illumination_mode>FLOOD BEAM</illumination_mode>
               <imaging_mode>BRIGHT FIELD</imaging_mode>
               <electron_source>OTHER</electron_source>
               <acceleration_voltage units="kV">100</acceleration_voltage>
               <nominal_cs units="mm">2.8</nominal_cs>
               <nominal_defocus_min units="&#181;m">0.9</nominal_defocus_min>
               <nominal_defocus_max units="&#181;m">1.2</nominal_defocus_max>
               <nominal_magnification>50000.0</nominal_magnification>
               <specimen_holder_model>JEOL</specimen_holder_model>
               <date>2008-02-06</date>
               <image_recording_list>
                  <image_recording>
                     <film_or_detector_model category="FILM">KODAK SO-163 FILM</film_or_detector_model>
                     <digitization_details>
                        <scanner>OTHER</scanner>
                        <sampling_interval units="&#181;m">1.69</sampling_interval>
                     </digitization_details>
                     <number_real_images>11</number_real_images>
                     <bits_per_pixel>16.</bits_per_pixel>
                  </image_recording>
               </image_recording_list>
               <specimen_holder>Side entry</specimen_holder>
            </single_particle_microscopy>
         </microscopy_list>
         <singleparticle_processing image_processing_id="1">
            <details>After correction of contrast transfer function by phase flipping the reconstructions have been performed by iterative cycles of MRA, MSA, classification and angular reconstitution of the obtained class averages. See also publication Peschek et al., 2009. The eye lens chaperone alpha-crystallin forms defined globular assemblies. PNAS 106</details>
            <ctf_correction>
               <details>Phase flipping of each particle</details>
            </ctf_correction>
            <final_reconstruction>
               <applied_symmetry>
                  <point_group>T</point_group>
               </applied_symmetry>
               <algorithm>OTHER</algorithm>
               <resolution res_type="BY AUTHOR" units="&#8491;">20.0</resolution>
               <resolution_method>FSC 0.5 CUT-OFF</resolution_method>
               <software_list>
                  <software>
                     <name>Imagic</name>
                  </software>
               </software_list>
               <details>Final maps were calculated from 40 class averages</details>
               <number_images_used>2565</number_images_used>
            </final_reconstruction>
            <final_two_d_classification>
               <number_classes>40</number_classes>
            </final_two_d_classification>
         </singleparticle_processing>
      </structure_determination>
   </structure_determination_list>
   <map format="CCP4" size_kbytes="13185">
      <file>emd_1776.map.gz</file>
      <symmetry>
         <space_group>1</space_group>
      </symmetry>
      <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
      <dimensions>
         <col>150</col>
         <row>150</row>
         <sec>150</sec>
      </dimensions>
      <origin>
         <col>0</col>
         <row>0</row>
         <sec>0</sec>
      </origin>
      <spacing>
         <x>150</x>
         <y>150</y>
         <z>150</z>
      </spacing>
      <cell>
         <a units="&#8491;">253.50002</a>
         <b units="&#8491;">253.50002</b>
         <c units="&#8491;">253.50002</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>-0.09503739</minimum>
         <maximum>0.28221357</maximum>
         <average>-0.00120769</average>
         <std>0.03652364</std>
      </statistics>
      <pixel_spacing>
         <x units="&#8491;">1.69</x>
         <y units="&#8491;">1.69</y>
         <z units="&#8491;">1.69</z>
      </pixel_spacing>
      <contour_list>
         <contour primary="true">
            <level>0.081</level>
            <source>AUTHOR</source>
         </contour>
      </contour_list>
      <annotation_details>This is a map of human alphaB crystallin</annotation_details>
      <details>::::EMDATABANK.org::::EMD-1776::::</details>
   </map>
   <interpretation>
      <modelling_list>
         <modelling>
            <initial_model>
               <access_code>1SHS</access_code>
               <chain>
                  <chain_id>A</chain_id>
               </chain>
               <chain>
                  <chain_id>C</chain_id>
               </chain>
            </initial_model>
            <refinement_protocol>RIGID BODY FIT</refinement_protocol>
            <software_list>
               <software>
                  <name>Chimera</name>
               </software>
            </software_list>
            <details>PDBEntryID_givenInChain. The dimers were separately fitted by manual docking using program chimera. AS 14-103 were used</details>
            <refinement_space>RECIPROCAL</refinement_space>
         </modelling>
      </modelling_list>
   </interpretation>
</emd>