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                <funding_body>Chinese Academy of Sciences</funding_body>
                <code>XDB29040300</code>
                <country>China</country>
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        <title>S-3C1-F3b structure, all the three RBDs are in the up conformation and each of them associates with a 3C1 Fab</title>
        <authors_list>
            <author>Cong Y</author>
            <author>Liu CX</author>
        </authors_list>
        <keywords>VIRAL PROTEIN</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Zhang C</author>
                    <author order="2">Wang Y</author>
                    <author order="3">Zhu Y</author>
                    <author order="4">Liu C</author>
                    <author order="5">Gu C</author>
                    <author order="6">Xu S</author>
                    <author order="7">Wang Y</author>
                    <author order="8">Zhou Y</author>
                    <author order="9">Wang Y</author>
                    <author order="10">Han W</author>
                    <author order="11">Hong X</author>
                    <author order="12">Yang Y</author>
                    <author order="13">Zhang X</author>
                    <author order="14">Wang T</author>
                    <author order="15">Xu C</author>
                    <author order="16">Hong Q</author>
                    <author order="17">Wang S</author>
                    <author order="18">Zhao Q</author>
                    <author order="19">Qiao W</author>
                    <author order="20">Zang J</author>
                    <author order="21">Kong L</author>
                    <author order="22">Wang F</author>
                    <author ORCID="0000-0002-4714-4672" order="23">Wang H</author>
                    <author order="24">Qu D</author>
                    <author ORCID="0000-0002-4706-1519" order="25">Lavillette D</author>
                    <author order="26">Tang H</author>
                    <author ORCID="0000-0002-3381-3417" order="27">Deng Q</author>
                    <author ORCID="0000-0002-2416-7708" order="28">Xie Y</author>
                    <author ORCID="0000-0002-7164-8694" order="29">Cong Y</author>
                    <author ORCID="0000-0002-2161-1359" order="30">Huang Z</author>
                    <title>Development and structural basis of a two-MAb cocktail for treating SARS-CoV-2 infections.</title>
                    <journal_abbreviation>Nat Commun</journal_abbreviation>
                    <country>UK</country>
                    <volume>12</volume>
                    <first_page>264</first_page>
                    <last_page>264</last_page>
                    <year>2021</year>
                    <external_references type="PUBMED">33431876</external_references>
                    <external_references type="DOI">doi:10.1038/s41467-020-20465-w</external_references>
                    <external_references type="ISSN">2041-1723</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
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                <pdb_id>7dcc</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Complex of SARC-CoV2-S protein with 3C1 fab, all the three RBDs are in the up conformation and each of them associates with a 3C1 Fab</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Complex of SARC-CoV2-S protein with 3C1 fab, all the three RBDs are in the up conformation and each of them associates with a 3C1 Fab</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>2</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>3</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="10090">Mus musculus</organism>
                </natural_source>
            </complex_supramolecule>
            <complex_supramolecule supramolecule_id="2">
                <name>3C1 fab with a heavy chain and a light chain</name>
                <parent>1</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>3</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>SARC-CoV2-S protein</name>
                <parent>1</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>2</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>The heavy chain of 3C1 fab</name>
                <natural_source database="NCBI">
                    <organism ncbi="10090">Mus musculus</organism>
                    <strain>Balb/c</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.024151785</theoretical>
                </molecular_weight>
                <number_of_copies>3</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>EVQLQESGPSLVKPSQTLSLTCSVTGDSITNGYWNWIRKFPGNKLEYMGYISYSGSTYYSPSLKSRISITRDTSKNQHYL
QLNSVTSEDTATYYCASDYHGSKYYFDYWGQGTTLTVSSAKTTPPSVYPLAPGSAAQTNSMVTLGCLVKGYFPEPVTVTW
NSGSLSSGVHTFPAVLQSDLYTLSSSVTVPSSTWPSETVTCNVAHPASSTKVDKKIVPRDCG</string>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <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">0.14005590599999998</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
QELGKYEQGSGYIPEAPRDGQAYVRKDGEWVLLSTFLENLYFQGDYKDDDDKHHHHHHHHH</string>
                    <external_references type="UNIPROTKB">P0DTC2</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="3">
                <name>The light chain of 3C1 fab</name>
                <natural_source database="NCBI">
                    <organism ncbi="10090">Mus musculus</organism>
                    <strain>Balb/c</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.023891330000000002</theoretical>
                </molecular_weight>
                <number_of_copies>3</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>DIVMTQSHKFMSTSVGHRVSITCKASQDVGNDVAWYQQKPGQSPKLLIYWASTRHTGVPDRFTGSGSGTDFTLTISNVQS
EDLADYFCQQYNRYPYTFGGGTKLEIKRADAAPTVSIFPPSSEQLTSGGASVVCFLNNFYPKDINVKWKIDGSERQNGVL
NSWTDQDSKDSTYSMSSTLTLTKDEYERHNSYTCEATHKTSTSPIVKSFNRNEC</string>
                </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">
                    <buffer>
                        <ph>7.5</ph>
                        <component>
                            <concentration units="mM">20.0</concentration>
                            <formula>Tris-HCl</formula>
                        </component>
                        <component>
                            <concentration units="mM">200.0</concentration>
                            <formula>NaCl</formula>
                            <name>sodium chloride</name>
                        </component>
                        <component>
                            <concentration units="%">4.0</concentration>
                            <formula>glycerol</formula>
                        </component>
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                    <grid>
                        <model>Quantifoil</model>
                        <material>COPPER</material>
                        <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>
                        <details>To handle the potential preferred orientation problem, for sample frozen using holey carbon grid, 0.05% Octyl beta-D-glucopyranoside (Sigma) or 0.1% polylysine (Polysciences) was added into the sample or applied on grid before freezing, respectively.</details>
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                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                    </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>
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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>
                            <average_exposure_time units="s">6.45</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">49.6</average_electron_dose_per_image>
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                <ctf_correction>
                    <type>PHASE FLIPPING AND AMPLITUDE CORRECTION</type>
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                <startup_model type_of_model="RANDOM CONICAL TILT"/>
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                    <resolution units="Å" res_type="BY AUTHOR">4.3</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <number_images_used>71057</number_images_used>
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                <initial_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
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                <final_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
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