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    <admin>
        <current_status>
            <date>2024-10-23</date>
            <code>REL</code>
            <processing_site>PDBe</processing_site>
        </current_status>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2020-07-08</deposition>
            <header_release>2020-07-29</header_release>
            <map_release>2020-07-29</map_release>
            <update>2024-10-23</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>Spanish National Research Council</funding_body>
                <code>PIE/COVID-19 202020E079</code>
                <country>Spain</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Spanish Ministry of Science, Innovation, and Universities</funding_body>
                <code>SEV 2017-0712</code>
                <country>Spain</country>
            </grant_reference>
            <grant_reference>
                <funding_body>European Research Council (ERC)</funding_body>
                <code>ERC - 2018 -  SyG, Proposal: 810057</code>
                <country>Spain</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Library of Medicine (NIH/NLM)</funding_body>
                <code>GM125769</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Library of Medicine (NIH/NLM)</funding_body>
                <code>R01-AI127521</code>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>SARS-CoV-2 spike in prefusion state (flexibility analysis, 1-up closed conformation)</title>
        <authors_list>
            <author>Martinez M</author>
            <author>Marabini R</author>
        </authors_list>
        <keywords>Spike, Prefusion, Flexibility, Closed, VIRAL PROTEIN</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author ORCID="0000-0001-9467-9381" order="1">Melero R</author>
                    <author order="2">Sorzano COS</author>
                    <author order="3">Foster B</author>
                    <author order="4">Vilas JL</author>
                    <author ORCID="0000-0002-8435-5540" order="5">Martinez M</author>
                    <author ORCID="0000-0001-7876-1684" order="6">Marabini R</author>
                    <author order="7">Ramirez-Aportela E</author>
                    <author ORCID="0000-0001-6156-3542" order="8">Sanchez-Garcia R</author>
                    <author order="9">Herreros D</author>
                    <author order="10">Del Cano L</author>
                    <author order="11">Losana P</author>
                    <author order="12">Fonseca-Reyna YC</author>
                    <author order="13">Conesa P</author>
                    <author order="14">Wrapp D</author>
                    <author order="15">Chacon P</author>
                    <author order="16">McLellan JS</author>
                    <author order="17">Tagare HD</author>
                    <author order="18">Carazo JM</author>
                    <title>Continuous flexibility analysis of SARS-CoV-2 spike prefusion structures.</title>
                    <journal_abbreviation>Iucrj</journal_abbreviation>
                    <country>UK</country>
                    <volume>7</volume>
                    <first_page>1059</first_page>
                    <last_page>1069</last_page>
                    <year>2020</year>
                    <external_references type="PUBMED">33063791</external_references>
                    <external_references type="DOI">doi:10.1107/S2052252520012725</external_references>
                    <external_references type="ISSN">2052-2525</external_references>
                </journal_citation>
            </primary_citation>
            <secondary_citation>
                <journal_citation published="true">
                    <author ORCID="0000-0001-9467-9381" order="19">Melero R</author>
                    <author order="20">Sorzano COS</author>
                    <author order="21">Foster B</author>
                    <author order="22">Vilas JL</author>
                    <author ORCID="0000-0002-8435-5540" order="23">Martinez M</author>
                    <author ORCID="0000-0001-7876-1684" order="24">Marabini R</author>
                    <author order="25">Ramirez-Aportela E</author>
                    <author ORCID="0000-0001-6156-3542" order="26">Sanchez-Garcia R</author>
                    <author order="27">Herreros D</author>
                    <author order="28">Del Cano L</author>
                    <author order="29">Losana P</author>
                    <author order="30">Fonseca-Reyna YC</author>
                    <author order="31">Conesa P</author>
                    <author order="32">Wrapp D</author>
                    <author order="33">Chacon P</author>
                    <author order="34">McLellan JS</author>
                    <author order="35">Tagare HD</author>
                    <author order="36">Carazo JM</author>
                    <title>Continuous flexibility analysis of SARS-CoV-2 Spike prefusion structures.</title>
                    <journal_abbreviation>Biorxiv</journal_abbreviation>
                    <country>US</country>
                    <year>2020</year>
                    <external_references type="PUBMED">32676604</external_references>
                    <external_references type="DOI">doi:10.1101/2020.07.08.191072</external_references>
                    <external_references type="ISSN">2692-8205</external_references>
                </journal_citation>
            </secondary_citation>
        </citation_list>
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                <emdb_id>EMD-11328</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
        </emdb_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>6zp5</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>SARS-CoV-2 spike in prefusion state (flexibility analysis, 1-up closed conformation)</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>SARS-CoV-2 spike in prefusion state (flexibility analysis, 1-up closed conformation)</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="2697049">Severe acute respiratory syndrome coronavirus 2</organism>
                </natural_source>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Spike glycoprotein</name>
                <natural_source database="NCBI">
                    <organism ncbi="2697049">Severe acute respiratory syndrome coronavirus 2</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.142399375</theoretical>
                </molecular_weight>
                <number_of_copies>3</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="9606">Homo sapiens</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MFVFLVLLPLVSSQCVNLTTRTQLPPAYTNSFTRGVYYPDKVFRSSVLHSTQDLFLPFFSNVTWFHAIHVSGTNGTKRFD
NPVLPFNDGVYFASTEKSNIIRGWIFGTTLDSKTQSLLIVNNATNVVIKVCEFQFCNDPFLGVYYHKNNKSWMESEFRVY
SSANNCTFEYVSQPFLMDLEGKQGNFKNLREFVFKNIDGYFKIYSKHTPINLVRDLPQGFSALEPLVDLPIGINITRFQT
LLALHRSYLTPGDSSSGWTAGAAAYYVGYLQPRTFLLKYNENGTITDAVDCALDPLSETKCTLKSFTVEKGIYQTSNFRV
QPTESIVRFPNITNLCPFGEVFNATRFASVYAWNRKRISNCVADYSVLYNSASFSTFKCYGVSPTKLNDLCFTNVYADSF
VIRGDEVRQIAPGQTGKIADYNYKLPDDFTGCVIAWNSNNLDSKVGGNYNYLYRLFRKSNLKPFERDISTEIYQAGSTPC
NGVEGFNCYFPLQSYGFQPTNGVGYQPYRVVVLSFELLHAPATVCGPKKSTNLVKNKCVNFNFNGLTGTGVLTESNKKFL
PFQQFGRDIADTTDAVRDPQTLEILDITPCSFGGVSVITPGTNTSNQVAVLYQDVNCTEVPVAIHADQLTPTWRVYSTGS
NVFQTRAGCLIGAEHVNNSYECDIPIGAGICASYQTQTNSPGSASSVASQSIIAYTMSLGAENSVAYSNNSIAIPTNFTI
SVTTEILPVSMTKTSVDCTMYICGDSTECSNLLLQYGSFCTQLNRALTGIAVEQDKNTQEVFAQVKQIYKTPPIKDFGGF
NFSQILPDPSKPSKRSFIEDLLFNKVTLADAGFIKQYGDCLGDIAARDLICAQKFNGLTVLPPLLTDEMIAQYTSALLAG
TITSGWTFGAGAALQIPFAMQMAYRFNGIGVTQNVLYENQKLIANQFNSAIGKIQDSLSSTASALGKLQDVVNQNAQALN
TLVKQLSSNFGAISSVLNDILSRLDPPEAEVQIDRLITGRLQSLQTYVTQQLIRAAEIRASANLAATKMSECVLGQSKRV
DFCGKGYHLMSFPQSAPHGVVFLHVTYVPAQEKNFTTAPAICHDGKAHFPREGVFVSNGTHWFVTQRNFYEPQIITTDNT
FVSGNCDVVIGIVNNTVYDPLQPELDSFKEELDKYFKNHTSPDVDLGDISGINASVVNIQKEIDRLNEVAKNLNESLIDL
QELGKYEQGSGYIPEAPRDGQAYVRKDGEWVLLSTFLGRSLEVLFQGPGHHHHHHHHSAWSHPQFEKGGGSGGGGSGGSA
WSHPQFEK</string>
                    <external_references type="UNIPROTKB">P0DTC2</external_references>
                </sequence>
            </protein_or_peptide>
            <ligand macromolecule_id="6">
                <name>2-acetamido-2-deoxy-beta-D-glucopyranose</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000221208</theoretical>
                </molecular_weight>
                <number_of_copies>18</number_of_copies>
                <formula>NAG</formula>
            </ligand>
            <ligand macromolecule_id="7">
                <name>alpha-D-mannopyranose</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000180156</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <formula>MAN</formula>
            </ligand>
            <ligand macromolecule_id="8">
                <name>DIMETHYL SULFOXIDE</name>
                <molecular_weight>
                    <theoretical units="MDa">7.813299999999999e-05</theoretical>
                </molecular_weight>
                <number_of_copies>3</number_of_copies>
                <formula>DMS</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">
                    <buffer>
                        <ph>8.0</ph>
                    </buffer>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                    </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>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K3 (6k x 4k)</film_or_detector_model>
                            <average_electron_dose_per_image units="e/Å^2">36.0</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="NONE"/>
                <final_reconstruction>
                    <number_classes_used>1</number_classes_used>
                    <resolution units="Å" res_type="BY AUTHOR">3.1</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <number_images_used>45000</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>ANGULAR RECONSTITUTION</type>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>ANGULAR RECONSTITUTION</type>
                </final_angle_assignment>
                <final_three_d_classification>
                    <number_classes>2</number_classes>
                    <average_number_members_per_class>30000.0</average_number_members_per_class>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                    </software_list>
                </final_three_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
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            <space_group>1</space_group>
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    <interpretation>
        <modelling_list>
            <modelling>
                <initial_model>
                    <access_code>6ZOW</access_code>
                    <chain>
                        <source_name>PDB</source_name>
                        <initial_model_type>experimental model</initial_model_type>
                    </chain>
                </initial_model>
                <refinement_protocol>FLEXIBLE FIT</refinement_protocol>
                <details>Atomic structure 6ZOW was flexibly fitted to the map.</details>
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