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    <admin>
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            <date>2026-08-05</date>
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        <sites>
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        <key_dates>
            <deposition>2026-06-26</deposition>
            <header_release>2026-07-08</header_release>
            <map_release>2026-07-08</map_release>
            <update>2026-08-05</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>Biotechnology and Biological Sciences Research Council (BBSRC)</funding_body>
                <code>BB/Y001931/1</code>
                <country>United Kingdom</country>
            </grant_reference>
        </grant_support>
        <title>Amyloid beta oligomer Interactions with Extracellular Vesicles by Cryo-ET</title>
        <authors_list>
            <author ORCID="0000-0002-7411-1809">Khursheed A</author>
            <author ORCID="0000-0001-7533-2964">Viles JH</author>
            <author ORCID="0009-0006-5955-6558">Zhang H</author>
            <author ORCID="0000-0001-8215-8220">Shang Q</author>
            <author ORCID="0000-0001-5510-0947">Tian Y</author>
            <author ORCID="0000-0002-5766-0873">Szwedziak P</author>
            <author ORCID="0000-0002-5407-3366">Volkov VA</author>
        </authors_list>
        <keywords>Amyloid beta, Small extracellular vesicles, cryo-electron tomography, LIPID BINDING PROTEIN</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author ORCID="0000-0002-7411-1809" order="1">Khursheed A</author>
                    <author order="2">Shang Q</author>
                    <author order="3">Zhang H</author>
                    <author order="4">Tian Y</author>
                    <author order="5">Szwedziak P</author>
                    <author order="6">Volkov VA</author>
                    <author ORCID="0000-0001-7533-2964" order="7">Viles JH</author>
                    <title>3D nanoscale imaging of amyloid-beta oligomer interactions with extracellular vesicles by cryo-ET.</title>
                    <journal_abbreviation>Proc.Natl.Acad.Sci.USA</journal_abbreviation>
                    <country>US</country>
                    <volume>123</volume>
                    <first_page>e2610068123</first_page>
                    <last_page>e2610068123</last_page>
                    <year>2026</year>
                    <external_references type="PUBMED">42446988</external_references>
                    <external_references type="DOI">doi:10.1073/pnas.2610068123</external_references>
                    <external_references type="ISSN">1091-6490</external_references>
                    <external_references type="CSD">0040</external_references>
                    <external_references type="ASTM">PNASA6</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
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                <db_name>EMDB</db_name>
                <accession_id>EMD-58700</accession_id>
                <content_type>associated EM volume</content_type>
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    </crossreferences>
    <sample>
        <name>Small extracellular vesicles with Amyloid beta oligomers</name>
        <supramolecule_list>
            <organelle_or_cellular_component_supramolecule supramolecule_id="1">
                <name>Small extracellular vesicles with Amyloid beta oligomers</name>
                <parent>0</parent>
                <details>Small extracellular vesicles with Amyloid beta oligomers</details>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                    <strain>HEK 293 cell</strain>
                    <organelle>small  extracellular vesicles</organelle>
                </natural_source>
            </organelle_or_cellular_component_supramolecule>
        </supramolecule_list>
    </sample>
    <structure_determination_list>
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            <method>tomography</method>
            <aggregation_state>particle</aggregation_state>
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                <tomography_preparation preparation_id="1">
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                        <ph>7.4</ph>
                        <component>
                            <concentration units="mM">30.0</concentration>
                            <formula>HEPES</formula>
                            <name>2-hydroxyethyl)-1-piperazineethanesulfonic acid</name>
                        </component>
                        <details>Sodium phosphate buffer 30 mM and phosphate-buffered saline</details>
                    </buffer>
                    <grid>
                        <model>EMS Lacey Carbon</model>
                        <material>COPPER</material>
                        <mesh>200</mesh>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <time units="s">45</time>
                            <atmosphere>OTHER</atmosphere>
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                        <cryogen_name>ETHANE</cryogen_name>
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                        <chamber_temperature units="K">277.15</chamber_temperature>
                        <instrument>LEICA EM GP</instrument>
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                    <details>small extracellular vesicles incubated with amyloid beta oligomers</details>
                    <fiducial_markers_list>
                        <fiducial_marker>
                            <manufacturer>Ted Pella</manufacturer>
                            <diameter units="nanometer">5</diameter>
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                        <other_sectioning>NO SECTIONING</other_sectioning>
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                    <electron_source>FIELD EMISSION GUN</electron_source>
                    <acceleration_voltage units="kV">300</acceleration_voltage>
                    <c2_aperture_diameter units="µm">100.0</c2_aperture_diameter>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_defocus_min units="µm">3.0</nominal_defocus_min>
                    <nominal_defocus_max units="µm">6.0</nominal_defocus_max>
                    <nominal_magnification>53000.0</nominal_magnification>
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                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K3 (6k x 4k)</film_or_detector_model>
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                            <average_electron_dose_per_image units="e/Å^2">2.92</average_electron_dose_per_image>
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                <final_reconstruction>
                    <algorithm>BACK PROJECTION</algorithm>
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                    <software_list>
                        <software>
                            <name>IMOD</name>
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