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    <admin>
        <current_status>
            <date>2024-10-16</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2020-10-27</deposition>
            <header_release>2020-11-11</header_release>
            <map_release>2020-11-11</map_release>
            <update>2024-10-16</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>Other private</funding_body>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>SARS-CoV-2 Spike bound to Nb6 in closed conformation</title>
        <authors_list>
            <author>Schoof MS</author>
            <author>Faust BF</author>
        </authors_list>
        <keywords>Complex, Nanobody, VHH, VIRAL PROTEIN-IMMUNE SYSTEM complex</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Schoof M</author>
                    <author order="2">Faust B</author>
                    <author order="3">Saunders RA</author>
                    <author order="4">Sangwan S</author>
                    <author order="5">Rezelj V</author>
                    <author order="6">Hoppe N</author>
                    <author order="7">Boone M</author>
                    <author order="8">Billesbolle CB</author>
                    <author order="9">Puchades C</author>
                    <author order="10">Azumaya CM</author>
                    <author order="11">Kratochvil HT</author>
                    <author order="12">Zimanyi M</author>
                    <author order="13">Deshpande I</author>
                    <author order="14">Liang J</author>
                    <author order="15">Dickinson S</author>
                    <author order="16">Nguyen HC</author>
                    <author order="17">Chio CM</author>
                    <author order="18">Merz GE</author>
                    <author order="19">Thompson MC</author>
                    <author order="20">Diwanji D</author>
                    <author order="21">Schaefer K</author>
                    <author order="22">Anand AA</author>
                    <author order="23">Dobzinski N</author>
                    <author order="24">Zha BS</author>
                    <author order="25">Simoneau CR</author>
                    <author order="26">Leon K</author>
                    <author order="27">White KM</author>
                    <author order="28">Chio US</author>
                    <author order="29">Gupta M</author>
                    <author order="30">Jin M</author>
                    <author order="31">Li F</author>
                    <author order="32">Liu Y</author>
                    <author order="33">Zhang K</author>
                    <author order="34">Bulkley D</author>
                    <author order="35">Sun M</author>
                    <author order="36">Smith AM</author>
                    <author order="37">Rizo AN</author>
                    <author order="38">Moss F</author>
                    <author order="39">Brilot AF</author>
                    <author order="40">Pourmal S</author>
                    <author order="41">Trenker R</author>
                    <author order="42">Pospiech T</author>
                    <author order="43">Gupta S</author>
                    <author order="44">Barsi-Rhyne B</author>
                    <author order="45">Belyy V</author>
                    <author order="46">Barile-Hill AW</author>
                    <author order="47">Nock S</author>
                    <author order="48">Liu Y</author>
                    <author order="49">Krogan NJ</author>
                    <author order="50">Ralston CY</author>
                    <author order="51">Swaney DL</author>
                    <author order="52">Garcia-Sastre A</author>
                    <author order="53">Ott M</author>
                    <author order="54">Vignuzzi M</author>
                    <author order="55">QCRG Structural Biology Consortium</author>
                    <author order="56">Walter P</author>
                    <author order="57">Manglik A</author>
                    <title>An ultrapotent synthetic nanobody neutralizes SARS-CoV-2 by stabilizing inactive Spike.</title>
                    <journal_abbreviation>Science</journal_abbreviation>
                    <country>US</country>
                    <volume>370</volume>
                    <first_page>1473</first_page>
                    <last_page>1479</last_page>
                    <year>2020</year>
                    <external_references type="PUBMED">33154106</external_references>
                    <external_references type="DOI">doi:10.1126/science.abe3255</external_references>
                    <external_references type="ISSN">1095-9203</external_references>
                    <external_references type="CSD">0038</external_references>
                    <external_references type="ASTM">SCIEAS</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-22909</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-22908</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-22911</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-22910</emdb_id>
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                    <other>other EM volume</other>
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        </emdb_list>
        <pdb_list>
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    </crossreferences>
    <sample>
        <name>Complex of Spike S2P glycoprotein with synthetic nanobody Nb6</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Complex of Spike S2P glycoprotein with synthetic nanobody Nb6</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>2</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
            </complex_supramolecule>
            <complex_supramolecule supramolecule_id="2">
                <name>Spike S2P glycoprotein</name>
                <parent>1</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>
            <complex_supramolecule supramolecule_id="3">
                <name>synthetic nanobody Nb6</name>
                <parent>1</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>2</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="32630">synthetic construct</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="10029">Cricetulus griseus</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>
            <protein_or_peptide macromolecule_id="2">
                <name>Synthetic nanobody Nb6</name>
                <natural_source database="NCBI">
                    <organism ncbi="32630">synthetic construct</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.012696165999999998</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>QVQLVESGGGLVQAGGSLRLSCAASGIIFGRNAMGWYRQAPGKERELVAGITRRGSITYYADSVKGRFTISRDNAKNTVY
LQMNSLKPEDTAVYYCAADPASPAPGDYWGQGTQVTVSS</string>
                </sequence>
            </protein_or_peptide>
            <ligand macromolecule_id="4">
                <name>2-acetamido-2-deoxy-beta-D-glucopyranose</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000221208</theoretical>
                </molecular_weight>
                <number_of_copies>30</number_of_copies>
                <formula>NAG</formula>
            </ligand>
        </macromolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>singleParticle</method>
            <aggregation_state>particle</aggregation_state>
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                <single_particle_preparation preparation_id="1">
                    <buffer>
                        <ph>8.0</ph>
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                    <grid>
                        <model>Quantifoil</model>
                        <material>GOLD</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">30</time>
                        </pretreatment>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <instrument>FEI VITROBOT MARK IV</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>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_magnification>105000.0</nominal_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
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                        <coma_free/>
                    </alignment_procedure>
                    <specialist_optics>
                        <energy_filter>
                            <name>GIF Bioquantum</name>
                            <slit_width units="eV">20</slit_width>
                        </energy_filter>
                    </specialist_optics>
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                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K3 BIOQUANTUM (6k x 4k)</film_or_detector_model>
                            <number_real_images>5317</number_real_images>
                            <average_electron_dose_per_image units="e/Å^2">66.0</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
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            <singleparticle_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
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