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    <admin>
        <current_status>
            <date>2019-12-25</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2018-01-23</deposition>
            <header_release>2018-02-28</header_release>
            <map_release>2019-01-30</map_release>
            <update>2019-12-25</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>National Science Foundation (NSF, United States)</funding_body>
                <code>DMR-1344290</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)</funding_body>
                <code>R01GM104427</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)</funding_body>
                <code>R01HL115153</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Department of Energy (DOE, United States)</funding_body>
                <code>DE-AC02-05CH11231</code>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>Single Molecule 3D Image of a Hole-Hole Homodimer Species Generated in the Production of a Bispecific Recombinant IgG1 (No. 026)</title>
        <authors_list>
            <author>Lei D</author>
            <author>Liu J</author>
            <author>Liu H</author>
            <author>Lei M</author>
            <author>Ren G</author>
        </authors_list>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Lei D</author>
                    <author order="2">Liu J</author>
                    <author order="3">Liu H</author>
                    <author order="5">Marino JP</author>
                    <author order="6">Lei M</author>
                    <author order="7">Ren G</author>
                    <title>Single-Molecule 3D Images of "Hole-Hole" IgG1 Homodimers by Individual-Particle Electron Tomography.</title>
                    <journal_abbreviation>Sci Rep</journal_abbreviation>
                    <country>UK</country>
                    <volume>9</volume>
                    <first_page>8864</first_page>
                    <last_page>8864</last_page>
                    <year>2019</year>
                    <external_references type="PUBMED">31221961</external_references>
                    <external_references type="DOI">doi:10.1038/s41598-019-44978-7</external_references>
                    <external_references type="ISSN">2045-2322</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-7378</emdb_id>
                <relationship>
                    <other>associated EM volume</other>
                </relationship>
            </emdb_reference>
        </emdb_list>
    </crossreferences>
    <sample>
        <name>IgG1 hole-hole homodimer</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>IgG1 hole-hole homodimer</name>
                <parent>0</parent>
                <natural_source database="NCBI">
                    <organism ncbi="32644">unidentified</organism>
                </natural_source>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="10029">Cricetulus griseus</recombinant_organism>
                    <recombinant_cell>ovary</recombinant_cell>
                </recombinant_expression>
            </complex_supramolecule>
        </supramolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>tomography</method>
            <aggregation_state>particle</aggregation_state>
            <specimen_preparation_list>
                <tomography_preparation preparation_id="1">
                    <buffer>
                        <ph>7</ph>
                        <details>Dulbecco's phosphate buffered saline (DPBS)</details>
                    </buffer>
                    <staining>
                        <type>NEGATIVE</type>
                        <material>Uranyl Formate</material>
                        <details>The grid was stained with 1% (w/v) uranyl formate</details>
                    </staining>
                    <grid>
                        <material>COPPER</material>
                        <mesh>200</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>CONTINUOUS</film_topology>
                        </support_film>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <atmosphere>AIR</atmosphere>
                            <pressure units="kPa">0.039</pressure>
                        </pretreatment>
                    </grid>
                    <sectioning>
                        <other_sectioning>NO SECTIONING</other_sectioning>
                    </sectioning>
                </tomography_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <tomography_microscopy microscopy_id="1">
                    <microscope>ZEISS LIBRA120PLUS</microscope>
                    <illumination_mode>FLOOD BEAM</illumination_mode>
                    <imaging_mode>BRIGHT FIELD</imaging_mode>
                    <electron_source>LAB6</electron_source>
                    <acceleration_voltage units="kV">120</acceleration_voltage>
                    <nominal_cs units="mm">2.2</nominal_cs>
                    <nominal_magnification>80000.0</nominal_magnification>
                    <alignment_procedure>
                        <basic/>
                    </alignment_procedure>
                    <specialist_optics>
                        <energy_filter>
                            <name>In-column Omega Filter</name>
                        </energy_filter>
                    </specialist_optics>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN ULTRASCAN 4000 (4k x 4k)</film_or_detector_model>
                            <digitization_details>
                                <dimensions>
                                    <width units="pixel">4096</width>
                                    <height units="pixel">4096</height>
                                </dimensions>
                            </digitization_details>
                            <average_electron_dose_per_image units="e/Å^2">71.03</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                </tomography_microscopy>
            </microscopy_list>
            <tomography_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <details>X-ray speckles in images were removed before CTF correction.</details>
                <final_reconstruction>
                    <algorithm>FOURIER SPACE</algorithm>
                    <resolution units="Å" res_type="BY AUTHOR">14.08</resolution>
                    <resolution_method>FSC 0.5 CUT-OFF</resolution_method>
                    <details>The 3D reconstruction was performed by using Individual-Particle Electron Tomography (IPET). The obtained 3D map was Gaussian low-pass filtered to 2 nm. Image of the 3D map was taken in Chimera with the 'hide dust' function activated.</details>
                    <number_images_used>61</number_images_used>
                </final_reconstruction>
            </tomography_processing>
        </structure_determination>
    </structure_determination_list>
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            <y>128</y>
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            <a units="Å">378.88</a>
            <b units="Å">378.88</b>
            <c units="Å">378.88</c>
            <alpha units="deg">90.0</alpha>
            <beta units="deg">90.0</beta>
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