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    <admin>
        <current_status>
            <date>2024-11-20</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
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            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
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        <key_dates>
            <deposition>2021-03-19</deposition>
            <header_release>2021-07-28</header_release>
            <map_release>2021-07-28</map_release>
            <update>2024-11-20</update>
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        <title>Complex of SARS-CoV-2 receptor binding domain with the Fab fragments of neutralizing antibodies REGN10985 and REGN10989</title>
        <authors_list>
            <author>Zhou Y</author>
            <author>Romero Hernandez A</author>
        </authors_list>
        <keywords>SARS-Cov-2, RBD, neutralizing antibody, VIRAL PROTEIN-IMMUNE SYSTEM complex</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Copin R</author>
                    <author order="2">Baum A</author>
                    <author order="3">Wloga E</author>
                    <author order="4">Pascal KE</author>
                    <author order="5">Giordano S</author>
                    <author order="6">Fulton BO</author>
                    <author order="7">Zhou A</author>
                    <author order="8">Negron N</author>
                    <author order="9">Lanza K</author>
                    <author order="10">Chan N</author>
                    <author order="11">Coppola A</author>
                    <author order="12">Chiu J</author>
                    <author order="13">Ni M</author>
                    <author order="14">Wei Y</author>
                    <author order="15">Atwal GS</author>
                    <author order="16">Hernandez AR</author>
                    <author order="17">Saotome K</author>
                    <author order="18">Zhou Y</author>
                    <author order="19">Franklin MC</author>
                    <author order="20">Hooper AT</author>
                    <author order="21">McCarthy S</author>
                    <author order="22">Hamon S</author>
                    <author order="23">Hamilton JD</author>
                    <author order="24">Staples HM</author>
                    <author order="25">Alfson K</author>
                    <author order="26">Carrion Jr R</author>
                    <author order="27">Ali S</author>
                    <author order="28">Norton T</author>
                    <author order="29">Somersan-Karakaya S</author>
                    <author order="30">Sivapalasingam S</author>
                    <author order="31">Herman GA</author>
                    <author order="32">Weinreich DM</author>
                    <author order="33">Lipsich L</author>
                    <author order="34">Stahl N</author>
                    <author order="35">Murphy AJ</author>
                    <author order="36">Yancopoulos GD</author>
                    <author order="37">Kyratsous CA</author>
                    <title>The monoclonal antibody combination REGEN-COV protects against SARS-CoV-2 mutational escape in preclinical and human studies.</title>
                    <journal_abbreviation>Cell</journal_abbreviation>
                    <volume>184</volume>
                    <first_page>3949</first_page>
                    <year>2021</year>
                    <external_references type="PUBMED">34161776</external_references>
                    <external_references type="DOI">doi:10.1016/j.cell.2021.06.002</external_references>
                    <external_references type="ISSN">1097-4172</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>7m42</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Complex of SARS-CoV-2 receptor binding domain with the Fab fragments of neutralizing antibodies REGN10985 and REGN10989</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Complex of SARS-CoV-2 receptor binding domain with the Fab fragments of neutralizing antibodies REGN10985 and REGN10989</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>
                        <macromolecule_id>4</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>5</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>REGN10989 antibody Fab fragment light chain</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.022709974999999997</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="10029">Cricetulus griseus</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>QSALTQPASVSGSPGQSITISCTGTSSDVGTYNYVSWYQQHPGKAPKLMIFDVSNRPSGVSDRFSGSKSGNTASLTISGL
QAEDEADYYCSSFTTSSTVVFGGGTKLTVLGQPKAAPSVTLFPPSSEELQANKATLVCLISDFYPGAVTVAWKADSSPVK
AGVETTTPSKQSNNKYAASSYLSLTPEQWKSHRSYSCQVTHEGSTVEKTVAPTECS</string>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>REGN10989 antibody Fab fragment heavy chain</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.024815834</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="10029">Cricetulus griseus</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>QVQLVQSGAEVKKPGASVKVSCKASGYIFTGYYMHWVRQAPGQGLEWMGWINPNSGGANYAQKFQGRVTLTRDTSITTVY
MELSRLRFDDTAVYYCARGSRYDWNQNNWFDPWGQGTLVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPV
TVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCDKT</string>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="3">
                <name>Spike protein S1</name>
                <natural_source database="NCBI">
                    <organism ncbi="2697049">Severe acute respiratory syndrome coronavirus 2</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.028437901999999998</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="10029">Cricetulus griseus</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>RVQPTESIVRFPNITNLCPFGEVFNATRFASVYAWNRKRISNCVADYSVLYNSASFSTFKCYGVSPTKLNDLCFTNVYAD
SFVIRGDEVRQIAPGQTGKIADYNYKLPDDFTGCVIAWNSNNLDSKVGGNYNYLYRLFRKSNLKPFERDISTEIYQAGST
PCNGVEGFNCYFPLQSYGFQPTNGVGYQPYRVVVLSFELLHAPATVCGPKKSTNLVKNKCVNFEQKLISEEDLGGEQKLI
SEEDLHHHHHH</string>
                    <external_references type="UNIPROTKB">P0DTC2</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="4">
                <name>REGN10985 antibody Fab fragment light chain</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.022895179999999998</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="10029">Cricetulus griseus</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>QSVLTQPPSVSGAPGQRVTISCTGSSSNIGAGYDVHWYQQLPGTAPKLLIYGNSNRPSGVPDRFSGSKSGTSASLAITGL
QAEDEADYYCQSYDSSLSGSYVFGTGTKVTVLGQPKAAPSVTLFPPSSEELQANKATLVCLISDFYPGAVTVAWKADSSP
VKAGVETTTPSKQSNNKYAASSYLSLTPEQWKSHRSYSCQVTHEGSTVEKTVAPTECS</string>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="5">
                <name>REGN10985 antibody Fab fragment heavy chain</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.024857811</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="10029">Cricetulus griseus</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>EVQLVESGGGLVQPGRSLRLSCAASGFTFDDYAMHWVRQAPGKGLEWVSGISWNRGSIGYADSVKGRFTISRDNAKNSLY
LQMSSLRAEDTALYYCAKDGERWDSVVVPSARNGMDVWGQGTTVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDY
FPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCDKT</string>
                </sequence>
            </protein_or_peptide>
        </macromolecule_list>
    </sample>
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            <method>singleParticle</method>
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                        <cryogen_name>ETHANE</cryogen_name>
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                <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>
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                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K3 BIOQUANTUM (6k x 4k)</film_or_detector_model>
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                    <resolution units="Å" res_type="BY AUTHOR">3.3</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
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                    <type>MAXIMUM LIKELIHOOD</type>
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