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    <admin>
        <current_status>
            <date>2024-07-10</date>
            <code>REL</code>
            <processing_site>PDBe</processing_site>
        </current_status>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2021-02-25</deposition>
            <header_release>2021-04-21</header_release>
            <map_release>2021-04-21</map_release>
            <update>2024-07-10</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>Austrian Science Fund</funding_body>
                <code>P31445</code>
                <country>Austria</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)</funding_body>
                <code>R01AI147890</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)</funding_body>
                <code>R01AI150454</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)</funding_body>
                <code>R35GM136258</code>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>Structure of the mature RSV CA lattice: T=3 CA icosahedron</title>
        <authors_list>
            <author>Obr M</author>
            <author>Ricana CL</author>
        </authors_list>
        <keywords>Retrovirus, Rous sarcoma virus, capsid protein, IP6, VIRAL PROTEIN</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Obr M</author>
                    <author ORCID="0000-0002-9733-9136" order="2">Ricana CL</author>
                    <author order="3">Nikulin N</author>
                    <author order="4">Feathers JR</author>
                    <author order="5">Klanschnig M</author>
                    <author order="6">Thader A</author>
                    <author order="7">Johnson MC</author>
                    <author order="8">Vogt VM</author>
                    <author ORCID="0000-0003-4790-8078" order="9">Schur FKM</author>
                    <author order="10">Dick RA</author>
                    <title>Structure of the mature Rous sarcoma virus lattice reveals a role for IP6 in the formation of the capsid hexamer.</title>
                    <journal_abbreviation>Nat Commun</journal_abbreviation>
                    <country>UK</country>
                    <volume>12</volume>
                    <first_page>3226</first_page>
                    <last_page>3226</last_page>
                    <year>2021</year>
                    <external_references type="PUBMED">34050170</external_references>
                    <external_references type="DOI">doi:10.1038/s41467-021-23506-0</external_references>
                    <external_references type="ISSN">2041-1723</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>7no1</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Rous sarcoma virus - Prague C</name>
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            <virus_supramolecule supramolecule_id="1">
                <name>Rous sarcoma virus - Prague C</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <sci_species_name ncbi="11888">Rous sarcoma virus - Prague C</sci_species_name>
                <virus_shell shell_id="1">
                    <name>T=3 icosahedron</name>
                </virus_shell>
                <virus_type>VIRUS-LIKE PARTICLE</virus_type>
                <virus_isolate>OTHER</virus_isolate>
                <virus_enveloped>false</virus_enveloped>
                <virus_empty>true</virus_empty>
            </virus_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Capsid protein p27, alternate cleaved 1</name>
                <natural_source database="NCBI">
                    <organism ncbi="11888">Rous sarcoma virus (strain Prague C)</organism>
                    <strain>Prague C</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.024773594</theoretical>
                </molecular_weight>
                <number_of_copies>3</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="469008">Escherichia coli BL21(DE3)</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>PVVIKTEGPAWTPLEPKLITRLADTVRTKGLRSPITMAEVEALMSSPLLPHDVTNLMRVILGPAPYALWMDAWGVQLQTV
IAAATRDPRHPANGQGRGERTNLNRLKGLADGMVGNPQGQAALLRPGELVAITASALQAFREVARLAEPAGPWADIMQGP
SESFVDFANRLIKAVEGSDLPPSARAPVIIDCFRQKSQPDIQQLIRTAPSTLTTPGEIIKYVLDRQKTA</string>
                    <external_references type="UNIPROTKB">P03322</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>8.0</ph>
                        <component>
                            <concentration units="M">1.0</concentration>
                            <formula>NaPi</formula>
                            <name>sodium phosphate</name>
                        </component>
                    </buffer>
                    <grid>
                        <model>C-flat-2/2</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>
                            <time units="s">45</time>
                            <atmosphere>AIR</atmosphere>
                        </pretreatment>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">95</chamber_humidity>
                        <chamber_temperature units="K">277</chamber_temperature>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                        <details>blot time = 2.5s
blot force = 0. </details>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>FEI TECNAI ARCTICA</microscope>
                    <illumination_mode>FLOOD BEAM</illumination_mode>
                    <imaging_mode>BRIGHT FIELD</imaging_mode>
                    <electron_source>FIELD EMISSION GUN</electron_source>
                    <acceleration_voltage units="kV">200</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">0.8</nominal_defocus_min>
                    <nominal_defocus_max units="µm">1.5</nominal_defocus_max>
                    <nominal_magnification>63000.0</nominal_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <specialist_optics>
                        <energy_filter>
                            <name>GIF Bioquantum</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 K3 BIOQUANTUM (6k x 4k)</film_or_detector_model>
                            <digitization_details>
                                <dimensions>
                                    <width units="pixel">5760</width>
                                    <height units="pixel">4092</height>
                                </dimensions>
                            </digitization_details>
                            <number_real_images>2394</number_real_images>
                            <average_exposure_time units="s">3.0</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">50.0</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>
                <particle_selection>
                    <number_selected>2309</number_selected>
                    <details>Three rounds of auto-picking and 2D classification</details>
                </particle_selection>
                <startup_model type_of_model="EMDB MAP">
                    <emdb_id>EMD-5773</emdb_id>
                    <details>Map was low pass filtered to 60 Angstrom^-1</details>
                </startup_model>
                <final_reconstruction>
                    <applied_symmetry>
                        <point_group>I</point_group>
                    </applied_symmetry>
                    <resolution units="Å" res_type="BY AUTHOR">7.6</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.1</version>
                        </software>
                    </software_list>
                    <number_images_used>406</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.1</version>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.1</version>
                        </software>
                    </software_list>
                </final_angle_assignment>
                <final_three_d_classification>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.1</version>
                        </software>
                    </software_list>
                    <details>2D and 3D classification, CTF refinement, and Bayesian particle polishing</details>
                </final_three_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
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        <file>emd_12486.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
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            <col>360</col>
            <row>360</row>
            <sec>360</sec>
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            <x>360</x>
            <y>360</y>
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        <cell>
            <a units="Å">446.4</a>
            <b units="Å">446.4</b>
            <c units="Å">446.4</c>
            <alpha units="deg">90.0</alpha>
            <beta units="deg">90.0</beta>
            <gamma units="deg">90.0</gamma>
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        <axis_order>
            <fast>X</fast>
            <medium>Y</medium>
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            <minimum>-0.025581088</minimum>
            <maximum>0.0516663</maximum>
            <average>0.0004973047</average>
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                <level>0.012</level>
                <source>AUTHOR</source>
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        <label>::::EMDATABANK.org::::EMD-12486::::</label>
        <annotation_details>RSV CA lattice: T=3 icosahedron</annotation_details>
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                <initial_model>
                    <access_code>7NO0</access_code>
                    <chain>
                        <source_name>PDB</source_name>
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                <refinement_protocol>RIGID BODY FIT</refinement_protocol>
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