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    <admin>
        <current_status>
            <date>2025-12-17</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <revision_history>
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                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
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                        <revision_type>INITIAL_RELEASE</revision_type>
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                        <revision_type>INITIAL_RELEASE</revision_type>
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                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
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                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
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                </change_list>
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        </revision_history>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2025-08-09</deposition>
            <header_release>2025-12-10</header_release>
            <map_release>2025-12-10</map_release>
            <update>2025-12-17</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)</funding_body>
                <code>75N39019C00051</code>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>Polyclonal immune complex of Fab from mice sera binding the side of the head of H5 HA after immunization with inactivated split A/bald eagle/FL/W22-134-OP/2022 Influenza virus vaccine adjuvanted with CpG</title>
        <authors_list>
            <author ORCID="0000-0002-6904-6889">Andrade TG</author>
            <author ORCID="0009-0009-6510-7558">Rodriguez AJ</author>
            <author ORCID="0000-0002-3402-2609">Han J</author>
            <author ORCID="0000-0001-7153-3769">Ward AB</author>
        </authors_list>
        <keywords>influenza, hemagglutinin, Flu A, polyclonal, complex, fab complex, VIRAL PROTEIN</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Puente-Massaguer E</author>
                    <author order="2">Andrade TG</author>
                    <author order="3">Scherm MJ</author>
                    <author order="4">Vasilev K</author>
                    <author order="5">Abozeid H</author>
                    <author order="6">Rodriguez AJ</author>
                    <author order="7">Yueh J</author>
                    <author order="8">Bhavsar D</author>
                    <author order="9">Campbell JD</author>
                    <author order="10">Yu D</author>
                    <author order="11">Webby RJ</author>
                    <author order="12">Kawaoka Y</author>
                    <author order="13">Neumann G</author>
                    <author order="14">Han J</author>
                    <author ORCID="0000-0001-7153-3769" order="15">Ward AB</author>
                    <author order="16">Krammer F</author>
                    <title>A clade 2.3.4.4b H5N1 virus vaccine that elicits cross-protective antibodies against conserved domains of H5 and N1 glycoproteins.</title>
                    <journal_abbreviation>Biorxiv</journal_abbreviation>
                    <country>US</country>
                    <year>2025</year>
                    <external_references type="PUBMED">40832286</external_references>
                    <external_references type="DOI">doi:10.1101/2025.08.14.670375</external_references>
                    <external_references type="ISSN">2692-8205</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <other_db_list>
            <db_reference>
                <db_name>EMDB</db_name>
                <accession_id>EMD-72063</accession_id>
                <content_type>associated EM volume</content_type>
            </db_reference>
        </other_db_list>
    </crossreferences>
    <sample>
        <name>Polyclonal immune complex of Fab from mice sera binding H5 HA after immunization with inactivated split A/bald eagle/FL/W22-134-OP/2022 Influenza virus vaccine adjuvanted with CpG</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Polyclonal immune complex of Fab from mice sera binding H5 HA after immunization with inactivated split A/bald eagle/FL/W22-134-OP/2022 Influenza virus vaccine adjuvanted with CpG</name>
                <parent>0</parent>
                <natural_source database="NCBI">
                    <organism ncbi="10090">Mus musculus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.28</theoretical>
                </molecular_weight>
            </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">0.015</concentration>
                    <buffer>
                        <ph>7.4</ph>
                    </buffer>
                    <staining>
                        <type>NEGATIVE</type>
                        <material>2% w/v uranyl formate</material>
                    </staining>
                </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>DARK FIELD</imaging_mode>
                    <electron_source>FIELD EMISSION GUN</electron_source>
                    <acceleration_voltage units="kV">200</acceleration_voltage>
                    <nominal_defocus_min units="µm">0.5</nominal_defocus_min>
                    <nominal_defocus_max units="µm">2.0</nominal_defocus_max>
                    <specimen_holder_model>SIDE ENTRY, EUCENTRIC</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>FEI CETA (4k x 4k)</film_or_detector_model>
                            <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>
            <singleparticle_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <ctf_correction>
                    <type>NONE</type>
                </ctf_correction>
                <startup_model type_of_model="PDB ENTRY">
                    <pdb_model>
                        <pdb_id>6CFG</pdb_id>
                    </pdb_model>
                </startup_model>
                <final_reconstruction>
                    <resolution units="Å" res_type="BY AUTHOR">25.0</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>4.0</version>
                        </software>
                    </software_list>
                    <number_images_used>1264</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                </final_angle_assignment>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
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        <file>emd_72063.map.gz</file>
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            <row>208</row>
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            <y>208</y>
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            <a units="Å">416.0</a>
            <b units="Å">416.0</b>
            <c units="Å">416.0</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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            <minimum>-0.037312187</minimum>
            <maximum>0.09258543</maximum>
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        <pixel_spacing>
            <x units="Å">2.0</x>
            <y units="Å">2.0</y>
            <z units="Å">2.0</z>
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            <contour primary="true">
                <level>0.0283</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-72063::::</label>
        <annotation_details>Negative stain map of polyclonal Fab from mice sera binding the side head of H5 HA after immunization with inactivated split A/bald eagle/FL/W22-134-OP/2022 Influenza virus vaccine adjuvanted with CpG</annotation_details>
    </map>
    <interpretation>
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                <file>emd_72063_additional_1.map.gz</file>
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                    <space_group>1</space_group>
                </symmetry>
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                    <row>208</row>
                    <sec>208</sec>
                </dimensions>
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                    <row>0</row>
                    <sec>0</sec>
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                    <x>208</x>
                    <y>208</y>
                    <z>208</z>
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                    <a units="Å">416.0</a>
                    <b units="Å">416.0</b>
                    <c units="Å">416.0</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>-0.31482092</minimum>
                    <maximum>0.7606677</maximum>
                    <average>0.0004312048</average>
                    <std>0.03173788</std>
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                    <x units="Å">2.0</x>
                    <y units="Å">2.0</y>
                    <z units="Å">2.0</z>
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                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-72063::::</label>
                <annotation_details>Negative stain map from 3D classification</annotation_details>
            </additional_map>
        </additional_map_list>
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                </symmetry>
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                <dimensions>
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                    <row>208</row>
                    <sec>208</sec>
                </dimensions>
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                    <row>0</row>
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                    <x>208</x>
                    <y>208</y>
                    <z>208</z>
                </spacing>
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                    <b units="Å">416.0</b>
                    <c units="Å">416.0</c>
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                    <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>
                </axis_order>
                <statistics>
                    <minimum>-0.0771545</minimum>
                    <maximum>0.13969378</maximum>
                    <average>0.000066543704</average>
                    <std>0.0073017715</std>
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                    <x units="Å">2.0</x>
                    <y units="Å">2.0</y>
                    <z units="Å">2.0</z>
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                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-72063::::</label>
                <annotation_details>Negative stain half map B</annotation_details>
            </half_map>
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                <file>emd_72063_half_map_2.map.gz</file>
                <symmetry>
                    <space_group>1</space_group>
                </symmetry>
                <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
                <dimensions>
                    <col>208</col>
                    <row>208</row>
                    <sec>208</sec>
                </dimensions>
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                    <row>0</row>
                    <sec>0</sec>
                </origin>
                <spacing>
                    <x>208</x>
                    <y>208</y>
                    <z>208</z>
                </spacing>
                <cell>
                    <a units="Å">416.0</a>
                    <b units="Å">416.0</b>
                    <c units="Å">416.0</c>
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                    <beta units="deg">90.0</beta>
                    <gamma units="deg">90.0</gamma>
                </cell>
                <axis_order>
                    <fast>X</fast>
                    <medium>Y</medium>
                    <slow>Z</slow>
                </axis_order>
                <statistics>
                    <minimum>-0.06774426</minimum>
                    <maximum>0.123949066</maximum>
                    <average>0.00006672624</average>
                    <std>0.007200278</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">2.0</x>
                    <y units="Å">2.0</y>
                    <z units="Å">2.0</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-72063::::</label>
                <annotation_details>Negative stain half map A</annotation_details>
            </half_map>
        </half_map_list>
    </interpretation>
</emd>
