<?xml version="1.0" encoding="UTF-8"?>
<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://github.com/emdb-empiar/emdb-schemas/blob/master/v3/v3_0_1_4/emdb.xsd" emdb_id="EMD-4444" version="3.0.1.4">
    <admin>
        <current_status>
            <date>2019-06-12</date>
            <code>REL</code>
            <processing_site>PDBe</processing_site>
        </current_status>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2018-11-28</deposition>
            <header_release>2019-03-06</header_release>
            <map_release>2019-03-06</map_release>
            <update>2019-06-12</update>
        </key_dates>
        <title>Structure of right-handed protein cage consisting of 24 eleven-membered ring proteins held together by gold (I) bridges.</title>
        <authors_list>
            <author>Malay AD</author>
            <author>Miyazaki N</author>
            <author>Biela AP</author>
            <author>Iwasaki K</author>
            <author>Heddle JG</author>
        </authors_list>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Malay AD</author>
                    <author order="2">Miyazaki N</author>
                    <author order="3">Biela A</author>
                    <author order="4">Chakraborti S</author>
                    <author order="5">Majsterkiewicz K</author>
                    <author order="6">Stupka I</author>
                    <author order="7">Kaplan CS</author>
                    <author order="8">Kowalczyk A</author>
                    <author order="9">Piette BMAG</author>
                    <author order="10">Hochberg GKA</author>
                    <author order="11">Wu D</author>
                    <author order="12">Wrobel TP</author>
                    <author order="13">Fineberg A</author>
                    <author order="14">Kushwah MS</author>
                    <author order="15">Kelemen M</author>
                    <author order="16">Vavpetic P</author>
                    <author order="17">Pelicon P</author>
                    <author order="18">Kukura P</author>
                    <author order="19">Benesch JLP</author>
                    <author order="20">Iwasaki K</author>
                    <author order="21">Heddle JG</author>
                    <title>An ultra-stable gold-coordinated protein cage displaying reversible assembly.</title>
                    <journal_abbreviation>Nature</journal_abbreviation>
                    <country>UK</country>
                    <volume>569</volume>
                    <first_page>438</first_page>
                    <last_page>442</last_page>
                    <year>2019</year>
                    <external_references type="PUBMED">31068697</external_references>
                    <external_references type="DOI">doi:10.1038/s41586-019-1185-4</external_references>
                    <external_references type="ISSN">1476-4687</external_references>
                    <external_references type="CSD">0006</external_references>
                    <external_references type="ASTM">NATUAS</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-6965</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
                <details>lower resolution map with lower symmetry applied</details>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-4444</emdb_id>
                <relationship>
                    <other>associated EM volume</other>
                </relationship>
                <details>Structure of right-handed protein cage consisting of 24 eleven-membered ring proteins held together by gold (I) bridges.</details>
            </emdb_reference>
        </emdb_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>6rvw</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Designed protein cage consisting of C11-symmetric TRAP proteins coordinated by Au+1 ions</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Designed protein cage consisting of C11-symmetric TRAP proteins coordinated by Au+1 ions</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="1422">Geobacillus stearothermophilus</organism>
                </natural_source>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                    <recombinant_strain>BL21(DE3)</recombinant_strain>
                    <recombinant_plasmid>pET21b</recombinant_plasmid>
                </recombinant_expression>
                <molecular_weight>
                    <experimental units="MDa">2.2</experimental>
                </molecular_weight>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Transcription attenuation protein MtrB</name>
                <natural_source database="NCBI">
                    <organism ncbi="1422">Geobacillus stearothermophilus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.008161224</theoretical>
                </molecular_weight>
                <number_of_copies>264</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MYTNSDFVVIKALEDGVNVIGLTRGADTRFHHSECLDKGEVLIAQFTEHTSAIKVRGKAYIQTSHGVIESEGKK</string>
                </sequence>
            </protein_or_peptide>
            <ligand macromolecule_id="2">
                <name>GOLD ION</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000196967</theoretical>
                </molecular_weight>
                <number_of_copies>120</number_of_copies>
                <formula>AU</formula>
            </ligand>
        </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">0.89</concentration>
                    <buffer>
                        <ph>8.0</ph>
                    </buffer>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">277</chamber_temperature>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                        <details>3.0 s blotting time. </details>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>FEI TITAN KRIOS</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>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>FEI FALCON II (4k x 4k)</film_or_detector_model>
                            <detector_mode>INTEGRATING</detector_mode>
                            <digitization_details>
                                <dimensions>
                                    <width units="pixel">4096</width>
                                    <height units="pixel">4096</height>
                                </dimensions>
                            </digitization_details>
                            <average_electron_dose_per_image units="e/Å^2">40.0</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                </single_particle_microscopy>
            </microscopy_list>
            <singleparticle_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <startup_model type_of_model="OTHER">
                    <details>An Initial model was produced by EMAN1.9 using the images acquired using JEM2200FS(JEOL,Tokyo) equipped with K2 Summit. The model was refined using RELION up to 16.5A. This was used as  a reference model to start RELION in this experiment.</details>
                </startup_model>
                <final_reconstruction>
                    <resolution units="Å" res_type="BY AUTHOR">3.7</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <number_images_used>176463</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing/>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing/>
                </final_angle_assignment>
                <final_three_d_classification>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                    </software_list>
                </final_three_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="42593">
        <file>emd_4444.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>220</col>
            <row>220</row>
            <sec>220</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>220</x>
            <y>220</y>
            <z>220</z>
        </spacing>
        <cell>
            <a units="Å">382.8</a>
            <b units="Å">382.8</b>
            <c units="Å">382.8</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>-0.19564073</minimum>
            <maximum>0.44655716</maximum>
            <average>0.0025878085</average>
            <std>0.024305884</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">1.7399999</x>
            <y units="Å">1.7399999</y>
            <z units="Å">1.7399999</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.115</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-4444::::</label>
        <annotation_details>map of the right-handed protein cage</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <initial_model>
                    <access_code>4V4F</access_code>
                    <chain>
                        <chain_id>AA</chain_id>
                    </chain>
                </initial_model>
                <initial_model>
                    <access_code>4V4F</access_code>
                    <chain>
                        <chain_id>AB</chain_id>
                    </chain>
                </initial_model>
                <initial_model>
                    <access_code>4V4F</access_code>
                    <chain>
                        <chain_id>AC</chain_id>
                    </chain>
                </initial_model>
                <initial_model>
                    <access_code>4V4F</access_code>
                    <chain>
                        <chain_id>AD</chain_id>
                    </chain>
                </initial_model>
                <initial_model>
                    <access_code>4V4F</access_code>
                    <chain>
                        <chain_id>AE</chain_id>
                    </chain>
                </initial_model>
                <initial_model>
                    <access_code>4V4F</access_code>
                    <chain>
                        <chain_id>AF</chain_id>
                    </chain>
                </initial_model>
                <initial_model>
                    <access_code>4V4F</access_code>
                    <chain>
                        <chain_id>AG</chain_id>
                    </chain>
                </initial_model>
                <initial_model>
                    <access_code>4V4F</access_code>
                    <chain>
                        <chain_id>AH</chain_id>
                    </chain>
                </initial_model>
                <initial_model>
                    <access_code>4V4F</access_code>
                    <chain>
                        <chain_id>AI</chain_id>
                    </chain>
                </initial_model>
                <initial_model>
                    <access_code>4V4F</access_code>
                    <chain>
                        <chain_id>AJ</chain_id>
                    </chain>
                </initial_model>
                <initial_model>
                    <access_code>4V4F</access_code>
                    <chain>
                        <chain_id>AK</chain_id>
                    </chain>
                </initial_model>
                <refinement_protocol>OTHER</refinement_protocol>
                <target_criteria>gradient-driven minimization of combined map and restraints target</target_criteria>
                <refinement_space>REAL</refinement_space>
            </modelling>
        </modelling_list>
    </interpretation>
</emd>
