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    <admin>
        <current_status>
            <date>2021-10-13</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2020-08-20</deposition>
            <header_release>2021-03-31</header_release>
            <map_release>2021-03-31</map_release>
            <update>2021-10-13</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>Bill &amp; Melinda Gates Foundation</funding_body>
                <code>OPP1084519</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Bill &amp; Melinda Gates Foundation</funding_body>
                <code>OPP1196345/INV-008813</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Bill &amp; Melinda Gates Foundation</funding_body>
                <code>OPP1115782</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Bill &amp; Melinda Gates Foundation</funding_body>
                <code>INV-002916</code>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>Base-directed response of rabbit #1 week 6 polyclonal fragment antigen binding in complex with 1PGE-THIVC SOSIP</title>
        <authors_list>
            <author>Sewell LM</author>
            <author>Ozorowski G</author>
            <author>Ward AB</author>
        </authors_list>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Kumar R</author>
                    <author order="2">Deshpande S</author>
                    <author order="3">Sewall LM</author>
                    <author order="4">Ozorowski G</author>
                    <author order="5">Cottrell CA</author>
                    <author order="6">Lee WH</author>
                    <author order="7">Holden LG</author>
                    <author order="8">Richey ST</author>
                    <author order="9">Chandrawacar AS</author>
                    <author order="10">Dhiman K</author>
                    <author order="11">Kumar V</author>
                    <author order="12">Ahmed S</author>
                    <author order="13">Hingankar N</author>
                    <author order="14">Kumar N</author>
                    <author order="15">Murugavel KG</author>
                    <author order="16">Srikrishnan AK</author>
                    <author order="17">Sok D</author>
                    <author order="18">Ward AB</author>
                    <author order="19">Bhattacharya J</author>
                    <title>Elicitation of potent serum neutralizing antibody responses in rabbits by immunization with an HIV-1 clade C trimeric Env derived from an Indian elite neutralizer.</title>
                    <journal_abbreviation>Plos Pathog.</journal_abbreviation>
                    <country>US</country>
                    <volume>17</volume>
                    <first_page>e1008977</first_page>
                    <last_page>e1008977</last_page>
                    <year>2021</year>
                    <external_references type="PUBMED">33826683</external_references>
                    <external_references type="DOI">doi:10.1371/journal.ppat.1008977</external_references>
                    <external_references type="ISSN">1553-7374</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
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            <emdb_reference>
                <emdb_id>EMD-22496</emdb_id>
                <relationship>
                    <other>associated EM volume</other>
                </relationship>
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    </crossreferences>
    <sample>
        <name>Base-directed response of rabbit #1 week 6 polyclonal fragment antigen binding in complex with 1PGE-THIVC SOSIP</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Base-directed response of rabbit #1 week 6 polyclonal fragment antigen binding in complex with 1PGE-THIVC SOSIP</name>
                <parent>0</parent>
                <details>IgG was purified from rabbit serum and digested into Fab  using papain. Polyclonal fab was incubated with 1PGE-THIVC SOSIP trimers.</details>
                <natural_source database="NCBI">
                    <organism ncbi="9986">Oryctolagus cuniculus</organism>
                </natural_source>
            </complex_supramolecule>
        </supramolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>singleParticle</method>
            <aggregation_state>particle</aggregation_state>
            <specimen_preparation_list>
                <single_particle_preparation preparation_id="1">
                    <concentration units="mg/mL">0.03</concentration>
                    <buffer>
                        <ph>7.4</ph>
                        <component>
                            <concentration units="mM">50.0</concentration>
                            <name>Tris</name>
                        </component>
                        <component>
                            <concentration units="mM">150.0</concentration>
                            <formula>NaCl</formula>
                            <name>Sodium chloride</name>
                        </component>
                    </buffer>
                    <staining>
                        <type>NEGATIVE</type>
                        <material>Uranyl formate</material>
                        <details>2% UF, stained once for 30-60 s prior to blotting</details>
                    </staining>
                    <grid>
                        <model>Homemade</model>
                        <material>COPPER</material>
                        <mesh>400</mesh>
                        <support_film film_type_id="1">
                            <film_material>PARLODION</film_material>
                            <film_topology>CONTINUOUS</film_topology>
                        </support_film>
                        <support_film film_type_id="2">
                            <film_material>CARBON</film_material>
                            <film_topology>CONTINUOUS</film_topology>
                        </support_film>
                        <pretreatment>
                            <type>PLASMA CLEANING</type>
                        </pretreatment>
                    </grid>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>TFS TALOS F200C</microscope>
                    <illumination_mode>FLOOD BEAM</illumination_mode>
                    <imaging_mode>BRIGHT FIELD</imaging_mode>
                    <electron_source>FIELD EMISSION GUN</electron_source>
                    <acceleration_voltage units="kV">200</acceleration_voltage>
                    <c2_aperture_diameter units="µm">70.0</c2_aperture_diameter>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_magnification>73000.0</nominal_magnification>
                    <specimen_holder_model>SIDE ENTRY, EUCENTRIC</specimen_holder_model>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>FEI CETA (4k x 4k)</film_or_detector_model>
                            <average_exposure_time units="s">1.0</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">25.0</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                </single_particle_microscopy>
            </microscopy_list>
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                <image_recording_id>1</image_recording_id>
                <startup_model type_of_model="PDB ENTRY">
                    <pdb_model>
                        <pdb_id>4ZMJ</pdb_id>
                    </pdb_model>
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                    <applied_symmetry>
                        <point_group>C1</point_group>
                    </applied_symmetry>
                    <resolution res_type="BY AUTHOR" units="Å">29.0</resolution>
                    <resolution_method>FSC 0.5 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.0</version>
                        </software>
                    </software_list>
                    <number_images_used>2525</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.0</version>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.0</version>
                        </software>
                    </software_list>
                </final_angle_assignment>
                <final_three_d_classification>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.0</version>
                        </software>
                    </software_list>
                </final_three_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
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        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
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            <row>192</row>
            <sec>192</sec>
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            <y>192</y>
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        <cell>
            <a units="Å">380.16</a>
            <b units="Å">380.16</b>
            <c units="Å">380.16</c>
            <alpha units="deg">90.0</alpha>
            <beta units="deg">90.0</beta>
            <gamma units="deg">90.0</gamma>
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        <axis_order>
            <fast>X</fast>
            <medium>Y</medium>
            <slow>Z</slow>
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        <statistics>
            <minimum>-0.030566046</minimum>
            <maximum>0.117460266</maximum>
            <average>0.00029650796</average>
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            <x units="Å">1.98</x>
            <y units="Å">1.98</y>
            <z units="Å">1.98</z>
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                <level>0.016</level>
                <source>AUTHOR</source>
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        <label>::::EMDATABANK.org::::EMD-22496::::</label>
        <annotation_details>final reconstruction</annotation_details>
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