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    <admin>
        <current_status>
            <date>2024-05-15</date>
            <code>REL</code>
            <processing_site>PDBe</processing_site>
        </current_status>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2018-10-15</deposition>
            <header_release>2018-11-28</header_release>
            <map_release>2018-12-05</map_release>
            <update>2024-05-15</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>German Research Foundation</funding_body>
                <code>BR 3635/2-1</code>
                <country>Germany</country>
            </grant_reference>
            <grant_reference>
                <funding_body>German Research Foundation</funding_body>
                <code>KR 906/7-1</code>
                <country>Germany</country>
            </grant_reference>
            <grant_reference>
                <funding_body>German Research Foundation</funding_body>
                <code>KR 906/8-1</code>
                <country>Germany</country>
            </grant_reference>
            <grant_reference>
                <funding_body>European Research Council</funding_body>
                <code>ERC-CoG-648432</code>
                <country>Germany</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Medical Research Council (United Kingdom)</funding_body>
                <code>MC_UP_1201/16</code>
                <country>United Kingdom</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Czech Science Foundation</funding_body>
                <code>17-25602S</code>
                <country>Czech Republic</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Ministry of Education (Czech Republic)</funding_body>
                <code>LO1302</code>
                <country>Czech Republic</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Ministry of Education (Czech Republic)</funding_body>
                <code>LO1304</code>
                <country>Czech Republic</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Ministry of Education (Czech Republic)</funding_body>
                <code>LO1601</code>
                <country>Czech Republic</country>
            </grant_reference>
        </grant_support>
        <title>Mature MLV capsid pentamer structure in intact virus particles</title>
        <authors_list>
            <author>Qu K</author>
            <author>Glass B</author>
        </authors_list>
        <keywords>MLV, capsid, pentamer, VIRAL PROTEIN</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Qu K</author>
                    <author order="2">Glass B</author>
                    <author order="3">Dolezal M</author>
                    <author order="4">Schur FKM</author>
                    <author order="5">Murciano B</author>
                    <author order="6">Rein A</author>
                    <author order="7">Rumlova M</author>
                    <author order="8">Ruml T</author>
                    <author order="9">Krausslich HG</author>
                    <author ORCID="0000-0003-3990-6910" order="10">Briggs JAG</author>
                    <title>Structure and architecture of immature and mature murine leukemia virus capsids.</title>
                    <journal_abbreviation>Proc. Natl. Acad. Sci. U.S.A.</journal_abbreviation>
                    <country>US</country>
                    <volume>115</volume>
                    <first_page>E11751</first_page>
                    <last_page>E11760</last_page>
                    <year>2018</year>
                    <external_references type="PUBMED">30478053</external_references>
                    <external_references type="DOI">doi:10.1073/pnas.1811580115</external_references>
                    <external_references type="ISSN">1091-6490</external_references>
                    <external_references type="CSD">0040</external_references>
                    <external_references type="ASTM">PNASA6</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>6hwy</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Murine leukemia virus</name>
        <supramolecule_list>
            <virus_supramolecule supramolecule_id="1">
                <name>Murine leukemia virus</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <sci_species_name ncbi="11786">Murine leukemia virus</sci_species_name>
                <virus_type>VIRION</virus_type>
                <virus_isolate>STRAIN</virus_isolate>
                <virus_enveloped>true</virus_enveloped>
                <virus_empty>false</virus_empty>
            </virus_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Putative gag polyprotein</name>
                <natural_source database="NCBI">
                    <organism ncbi="11786">Murine leukemia virus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.027165305</theoretical>
                </molecular_weight>
                <number_of_copies>4</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="9606">Homo sapiens</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>PLRMGGNGQLQYWPFSSSDLYNWKNNNPSFSEDPGKLTALIESVLTTHQPTWDDCQQLLGTLLTGEEKQRVLLEARKAVR
GNDGRPTQLPNEVDAAFPLERPDWDYTTQRGRNHLVLYRQLLLAGMQNAGRSPTNLAKVKGITQGPNESPSAFLERLKEA
YRRYTPYDPEDPGQETNVSMSFIWQSAPDIGRKLERLEDLKSKTLGDLVREAEKIFNKRETPEEREERIRRETEEK</string>
                    <external_references type="UNIPROTKB">A0A240FAQ8</external_references>
                </sequence>
            </protein_or_peptide>
        </macromolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>subtomogramAveraging</method>
            <aggregation_state>particle</aggregation_state>
            <specimen_preparation_list>
                <subtomogram_averaging_preparation preparation_id="1">
                    <buffer>
                        <ph>6.0</ph>
                    </buffer>
                    <grid>
                        <model>C-flat-2/1</model>
                        <material>COPPER</material>
                        <mesh>300</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>HOLEY</film_topology>
                        </support_film>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                        </pretreatment>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">95</chamber_humidity>
                        <chamber_temperature units="K">288</chamber_temperature>
                        <instrument>FEI VITROBOT MARK II</instrument>
                    </vitrification>
                    <details>Purified virus solution was inactivated and diluted 1:1 with PBS containing 10 nm colloidal gold.</details>
                </subtomogram_averaging_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <subtomogram_averaging_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>
                    <c2_aperture_diameter units="µm">50.0</c2_aperture_diameter>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_defocus_min units="µm">2.0</nominal_defocus_min>
                    <nominal_defocus_max units="µm">7.5</nominal_defocus_max>
                    <nominal_magnification>105000.0</nominal_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <alignment_procedure>
                        <zemlin_tableau/>
                    </alignment_procedure>
                    <specialist_optics>
                        <energy_filter>
                            <name>GIF Quantum LS</name>
                            <slit_width units="eV">20</slit_width>
                        </energy_filter>
                    </specialist_optics>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K2 QUANTUM (4k x 4k)</film_or_detector_model>
                            <detector_mode>SUPER-RESOLUTION</detector_mode>
                            <digitization_details>
                                <dimensions>
                                    <width units="pixel">3710</width>
                                    <height units="pixel">3838</height>
                                </dimensions>
                                <frames_per_image>1-6</frames_per_image>
                            </digitization_details>
                            <number_grids_imaged>2</number_grids_imaged>
                            <average_exposure_time units="s">0.6</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">1.8</average_electron_dose_per_image>
                            <details>Dose fluctuation was caused by the ring collapse of FEG during data collection.</details>
                        </image_recording>
                    </image_recording_list>
                </subtomogram_averaging_microscopy>
            </microscopy_list>
            <subtomogram_averaging_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <final_reconstruction>
                    <applied_symmetry>
                        <point_group>C5</point_group>
                    </applied_symmetry>
                    <algorithm>BACK PROJECTION</algorithm>
                    <resolution units="Å" res_type="BY AUTHOR">8.6</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>AV3</name>
                        </software>
                        <software>
                            <name>TOM</name>
                        </software>
                    </software_list>
                    <number_subtomograms_used>1299</number_subtomograms_used>
                </final_reconstruction>
                <extraction>
                    <number_tomograms>65</number_tomograms>
                    <number_images_used>1299</number_images_used>
                    <software_list>
                        <software>
                            <name>AmiraFPM</name>
                            <processing_details>Volume selection</processing_details>
                        </software>
                        <software>
                            <name>MATLAB</name>
                            <processing_details>Volume extraction</processing_details>
                        </software>
                    </software_list>
                </extraction>
                <final_angle_assignment>
                    <type>OTHER</type>
                    <software_list>
                        <software>
                            <name>AV3</name>
                        </software>
                        <software>
                            <name>TOM</name>
                        </software>
                    </software_list>
                    <details>Subtomogram Averaging.</details>
                </final_angle_assignment>
            </subtomogram_averaging_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="28312">
        <file>emd_0293.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>192</col>
            <row>192</row>
            <sec>192</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>192</x>
            <y>192</y>
            <z>192</z>
        </spacing>
        <cell>
            <a units="Å">259.2</a>
            <b units="Å">259.2</b>
            <c units="Å">259.2</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>-0.1343734</minimum>
            <maximum>0.21964659</maximum>
            <average>0.0031976078</average>
            <std>0.029144004</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">1.35</x>
            <y units="Å">1.35</y>
            <z units="Å">1.35</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.102</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-0293::::</label>
        <annotation_details>None</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <initial_model>
                    <access_code>1U7K</access_code>
                    <chain>
                        <chain_id>A</chain_id>
                        <residue_range>1-131</residue_range>
                        <source_name>PDB</source_name>
                        <initial_model_type>experimental model</initial_model_type>
                    </chain>
                </initial_model>
                <initial_model>
                    <access_code>6GZA</access_code>
                    <chain>
                        <chain_id>A</chain_id>
                        <residue_range>1-87</residue_range>
                        <source_name>PDB</source_name>
                        <initial_model_type>experimental model</initial_model_type>
                    </chain>
                </initial_model>
                <refinement_protocol>RIGID BODY FIT</refinement_protocol>
                <refinement_space>REAL</refinement_space>
            </modelling>
        </modelling_list>
    </interpretation>
</emd>
