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    <admin>
        <current_status>
            <date>2024-03-20</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2019-05-05</deposition>
            <header_release>2019-05-29</header_release>
            <map_release>2019-06-26</map_release>
            <update>2024-03-20</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>Howard Hughes Medical Institute (HHMI)</funding_body>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>Symmetric reconstruction of human norovirus GII.4 Minerva strain VLP in T=4 symmetry</title>
        <authors_list>
            <author>Jung J</author>
            <author>Grant T</author>
        </authors_list>
        <keywords>Caliciviridae, Calicivirus, Norovirus, GII.4, VIRUS LIKE PARTICLE</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Jung J</author>
                    <author order="2">Grant T</author>
                    <author order="3">Thomas DR</author>
                    <author order="4">Diehnelt CW</author>
                    <author order="5">Grigorieff N</author>
                    <author order="6">Joshua-Tor L</author>
                    <title>High-resolution cryo-EM structures of outbreak strain human norovirus shells reveal size variations.</title>
                    <journal_abbreviation>Proc.Natl.Acad.Sci.USA</journal_abbreviation>
                    <country>US</country>
                    <volume>116</volume>
                    <first_page>12828</first_page>
                    <last_page>12832</last_page>
                    <year>2019</year>
                    <external_references type="PUBMED">31182604</external_references>
                    <external_references type="DOI">doi:10.1073/pnas.1903562116</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>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-20195</emdb_id>
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                    <other>other EM volume</other>
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            <emdb_reference>
                <emdb_id>EMD-20197</emdb_id>
                <relationship>
                    <other>other EM volume</other>
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            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-20198</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-20199</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-20205</emdb_id>
                <relationship>
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                </relationship>
            </emdb_reference>
            <emdb_reference>
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    <sample>
        <name>Norovirus Hu/GII.4/Minerva/2006/USA</name>
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                <name>Norovirus Hu/GII.4/Minerva/2006/USA</name>
                <parent>0</parent>
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                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <sci_species_name ncbi="1182144">Norovirus Hu/GII.4/Minerva/2006/USA</sci_species_name>
                <sci_species_strain>GII.4</sci_species_strain>
                <natural_host database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_host>
                <molecular_weight>
                    <theoretical units="MDa">14.16</theoretical>
                </molecular_weight>
                <virus_shell shell_id="1">
                    <name>VP1</name>
                    <diameter units="Å">490.0</diameter>
                    <triangulation>4</triangulation>
                </virus_shell>
                <virus_type>VIRUS-LIKE PARTICLE</virus_type>
                <virus_isolate>STRAIN</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>Major capsid protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="1182144">Norovirus Hu/GII.4/Minerva/2006/USA</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.058938097999999994</theoretical>
                </molecular_weight>
                <number_of_copies>4</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="4085">Nicotiana</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MKMASNDANPSDGSAANLVPEVNNEVMALEPVVGAAIAAPVAGQQNVIDPWIRNNFVQAPGGEFTVSPRNAPGEILWSAP
LGPDLNPYLSHLARMYNGYAGGFEVQVILAGNAFTAGKIIFAAVPPNFPTEGLSPSQVTMFPHIIVDVRQLEPVLIPLPD
VRNNFYHYNQSNDSTIKLIAMLYTPLRANNAGEDVFTVSCRVLTRPSPDFDFIFLVPPTVESRTKPFTVPILTVEEMTNS
RFPIPLEKLFTGPSGAFVVQPQNGRCTTDGVLLGTTQLSPVNICTFRGDVTHIAGSRNYTMNLASLNWNNYDPTEEIPAP
LGTPDFVGKIQGVLTQTTKGDGSTRGHKATVYTGSAPFTPKLGSVQFSTDTENDFETHQNTKFTPVGVIQDGSTTHRNEP
QQWVLPSYSGRNVHNVHLAPAVAPTFPGEQLLFFRSTMPGCSGYPNMDLDCLLPQEWVQHFYQEAAPAQSDVALLRFVNP
DTGRVLFECKLHKSGYVTVAHTGQHDLVIPPNGYFRFDSWVNQFYTLAPMGNGTGGRRAL</string>
                    <external_references type="UNIPROTKB">R4I3T2</external_references>
                </sequence>
            </protein_or_peptide>
        </macromolecule_list>
    </sample>
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            <method>singleParticle</method>
            <aggregation_state>particle</aggregation_state>
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                <single_particle_preparation preparation_id="1">
                    <concentration units="mg/mL">4</concentration>
                    <buffer>
                        <ph>5.75</ph>
                    </buffer>
                    <grid>
                        <material>COPPER</material>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>LACEY</film_topology>
                        </support_film>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                        </pretreatment>
                        <details>unspecified</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">95</chamber_humidity>
                        <chamber_temperature units="K">295</chamber_temperature>
                        <instrument>LEICA EM GP</instrument>
                    </vitrification>
                </single_particle_preparation>
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            <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>
                    <c2_aperture_diameter units="µm">70.0</c2_aperture_diameter>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_defocus_min units="µm">1.0</nominal_defocus_min>
                    <nominal_defocus_max units="µm">2.6</nominal_defocus_max>
                    <nominal_magnification>130000.0</nominal_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
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                        <coma_free/>
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                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K2 SUMMIT (4k x 4k)</film_or_detector_model>
                            <detector_mode>SUPER-RESOLUTION</detector_mode>
                            <digitization_details/>
                            <number_real_images>2951</number_real_images>
                            <average_exposure_time units="s">7.0</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">69.0</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>94501</number_selected>
                </particle_selection>
                <startup_model type_of_model="OTHER">
                    <details>ab inito</details>
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                    <applied_symmetry>
                        <point_group>I</point_group>
                    </applied_symmetry>
                    <algorithm>FOURIER SPACE</algorithm>
                    <resolution units="Å" res_type="BY AUTHOR">4.1</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>cisTEM</name>
                            <version>1.0.0</version>
                        </software>
                    </software_list>
                    <number_images_used>17847</number_images_used>
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                    <type>COMMON LINE</type>
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                        <software>
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                            <version>1.0.0</version>
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                    <type>MAXIMUM LIKELIHOOD</type>
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                        <software>
                            <name>cisTEM</name>
                            <version>1.0.0</version>
                        </software>
                    </software_list>
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            <space_group>1</space_group>
        </symmetry>
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            <sec>800</sec>
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        <cell>
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            <c units="Å">856.00006</c>
            <alpha units="deg">90.0</alpha>
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            <average>0.0015412356</average>
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            <y units="Å">1.07</y>
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                <level>0.18</level>
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        <annotation_details>Symmetric reconstruction of human norovirus GII.4 Minerva strain VLP in T=4 symmetry</annotation_details>
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        <modelling_list>
            <modelling>
                <initial_model>
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                        <source_name>PDB</source_name>
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                <refinement_protocol>AB INITIO MODEL</refinement_protocol>
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