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                <code>JP20ae0101047</code>
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                <code>JP223fa627005</code>
                <country>Japan</country>
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                <funding_body>Japan Agency for Medical Research and Development (AMED)</funding_body>
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                <country>Japan</country>
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                <country>Japan</country>
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                <funding_body>Ministry of Education, Culture, Sports, Science and Technology (Japan)</funding_body>
                <code>JP20H05873</code>
                <country>Japan</country>
            </grant_reference>
        </grant_support>
        <title>STA map of C3 symmetry spike protein from active SARS-CoV-2 vririons</title>
        <authors_list>
            <author ORCID="0000-0002-4387-4790">Dokainish HM</author>
            <author ORCID="0000-0002-5459-521X">Maenaka K</author>
        </authors_list>
        <keywords>virions, spike protein, VIRAL PROTEIN</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="false">
                    <author ORCID="0000-0002-4387-4790" order="1">Dokainish HM</author>
                    <author ORCID="0000-0002-7035-8206" order="2">Fukuhara H</author>
                    <author ORCID="0000-0002-5459-521X" order="3">Maenaka K</author>
                    <title>Unprecedented spike flexibility revealed by BSL3 Cryo-ET of active SARS-CoV-2 virions</title>
                    <journal_abbreviation>To Be Published</journal_abbreviation>
                    <external_references type="CSD">0353</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <other_db_list>
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                <db_name>EMDB</db_name>
                <accession_id>EMD-39422</accession_id>
                <content_type>associated EM volume</content_type>
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    </crossreferences>
    <sample>
        <name>Severe acute respiratory syndrome coronavirus 2</name>
        <supramolecule_list>
            <virus_supramolecule supramolecule_id="1">
                <name>Severe acute respiratory syndrome coronavirus 2</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <sci_species_name ncbi="2697049">Severe acute respiratory syndrome coronavirus 2</sci_species_name>
                <sci_species_strain>Wuhan</sci_species_strain>
                <natural_host database="NCBI">
                    <organism>VeroE6/TMPRSS2</organism>
                </natural_host>
                <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>SARS-CoV-2 Spike protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="2697049">Severe acute respiratory syndrome coronavirus 2</organism>
                    <strain>Wuhan</strain>
                </natural_source>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MFVFLVLLPLVSSQCVNLTTRTQLPPAYTNSFTRGVYYPDKVFRSSVLHSTQDLFLPFFS
NVTWFHAIHVSGTNGTKRFDNPVLPFNDGVYFASTEKSNIIRGWIFGTTLDSKTQSLLIV
NNATNVVIKVCEFQFCNDPFLGVYYHKNNKSWMESEFRVYSSANNCTFEYVSQPFLMDLE
GKQGNFKNLREFVFKNIDGYFKIYSKHTPINLVRDLPQGFSALEPLVDLPIGINITRFQT
LLALHRSYLTPGDSSSGWTAGAAAYYVGYLQPRTFLLKYNENGTITDAVDCALDPLSETK
CTLKSFTVEKGIYQTSNFRVQPTESIVRFPNITNLCPFGEVFNATRFASVYAWNRKRISN
CVADYSVLYNSASFSTFKCYGVSPTKLNDLCFTNVYADSFVIRGDEVRQIAPGQTGKIAD
YNYKLPDDFTGCVIAWNSNNLDSKVGGNYNYLYRLFRKSNLKPFERDISTEIYQAGSTPC
NGVEGFNCYFPLQSYGFQPTNGVGYQPYRVVVLSFELLHAPATVCGPKKSTNLVKNKCVN
FNFNGLTGTGVLTESNKKFLPFQQFGRDIADTTDAVRDPQTLEILDITPCSFGGVSVITP
GTNTSNQVAVLYQDVNCTEVPVAIHADQLTPTWRVYSTGSNVFQTRAGCLIGAEHVNNSY
ECDIPIGAGICASYQTQTNSPRRARSVASQSIIAYTMSLGAENSVAYSNNSIAIPTNFTI
SVTTEILPVSMTKTSVDCTMYICGDSTECSNLLLQYGSFCTQLNRALTGIAVEQDKNTQE
VFAQVKQIYKTPPIKDFGGFNFSQILPDPSKPSKRSFIEDLLFNKVTLADAGFIKQYGDC
LGDIAARDLICAQKFNGLTVLPPLLTDEMIAQYTSALLAGTITSGWTFGAGAALQIPFAM
QMAYRFNGIGVTQNVLYENQKLIANQFNSAIGKIQDSLSSTASALGKLQDVVNQNAQALN
TLVKQLSSNFGAISSVLNDILSRLDKVEAEVQIDRLITGRLQSLQTYVTQQLIRAAEIRA
SANLAATKMSECVLGQSKRVDFCGKGYHLMSFPQSAPHGVVFLHVTYVPAQEKNFTTAPA
ICHDGKAHFPREGVFVSNGTHWFVTQRNFYEPQIITTDNTFVSGNCDVVIGIVNNTVYDP
LQPELDSFKEELDKYFKNHTSPDVDLGDISGINASVVNIQKEIDRLNEVAKNLNESLIDL
QELGKYEQYIKWPWYIWLGFIAGLIAIVMVTIMLCCMTSCCSCLKGCCSCGSCCKFDEDD
SEPVLKGVKLHYT</string>
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                        <ph>7.4</ph>
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                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">90</chamber_humidity>
                        <chamber_temperature units="K">291</chamber_temperature>
                        <instrument>LEICA EM GP</instrument>
                    </vitrification>
                </subtomogram_averaging_preparation>
            </specimen_preparation_list>
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                <subtomogram_averaging_microscopy microscopy_id="1">
                    <microscope>TFS KRIOS</microscope>
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                    <imaging_mode>BRIGHT FIELD</imaging_mode>
                    <electron_source>FIELD EMISSION GUN</electron_source>
                    <acceleration_voltage units="kV">300</acceleration_voltage>
                    <nominal_cs units="mm">2.7</nominal_cs>
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                    <nominal_defocus_max units="µm">0.2</nominal_defocus_max>
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                        <coma_free/>
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                            <film_or_detector_model>FEI FALCON IV (4k x 4k)</film_or_detector_model>
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                                    <width units="pixel">4096</width>
                                    <height units="pixel">4096</height>
                                </dimensions>
                            </digitization_details>
                            <average_exposure_time units="s">0.73</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">1.5</average_electron_dose_per_image>
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                <image_recording_id>1</image_recording_id>
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                    <applied_symmetry>
                        <point_group>C3</point_group>
                    </applied_symmetry>
                    <algorithm>FOURIER SPACE</algorithm>
                    <resolution units="Å" res_type="BY AUTHOR">14.3</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
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