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    <admin>
        <current_status>
            <date>2021-04-14</date>
            <code>REL</code>
            <processing_site>PDBe</processing_site>
        </current_status>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2020-03-12</deposition>
            <header_release>2020-07-29</header_release>
            <map_release>2020-07-29</map_release>
            <update>2021-04-14</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>Wellcome Trust</funding_body>
                <code>207455/Z/17/Z</code>
                <country>United Kingdom</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Medical Research Council (MRC, United Kingdom)</funding_body>
                <code>MC_UP_1201/16</code>
                <country>United Kingdom</country>
            </grant_reference>
        </grant_support>
        <title>AP2 in clathrin coats assembled on a membrane containing tyrosine-based cargo peptide</title>
        <authors_list>
            <author>Kovtun O</author>
            <author>Kane Dickson V</author>
            <author>Kelly BT</author>
            <author>Owen D</author>
            <author>Briggs JAG</author>
        </authors_list>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Kovtun O</author>
                    <author order="2">Dickson VK</author>
                    <author order="3">Kelly BT</author>
                    <author order="4">Owen DJ</author>
                    <author order="5">Briggs JAG</author>
                    <title>Architecture of the AP2/clathrin coat on the membranes of clathrin-coated vesicles.</title>
                    <journal_abbreviation>Sci Adv</journal_abbreviation>
                    <country>US</country>
                    <volume>6</volume>
                    <first_page>eaba8381</first_page>
                    <last_page>eaba8381</last_page>
                    <year>2020</year>
                    <external_references type="PUBMED">32743075</external_references>
                    <external_references type="DOI">doi:10.1126/sciadv.aba8381</external_references>
                    <external_references type="ISSN">2375-2548</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-10747</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
                <details>AP2 core in physiological buffer</details>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-10748</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-10749</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-10750</emdb_id>
                <relationship>
                    <other>associated EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-10751</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
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                <relationship>
                    <other>other EM volume</other>
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                <relationship>
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                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
        </emdb_list>
    </crossreferences>
    <sample>
        <name>Clathrin/AP2 coat assembled on AP2 membrane.</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Clathrin/AP2 coat assembled on AP2 membrane.</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_list>
                <details>Clathrin/AP coat was formed on the membrane containing dileucine- and tyrosine-based cargo signal peptides. The AP2 adaptor lacked hinge and appendage regions in its alpha subunit.</details>
            </complex_supramolecule>
            <complex_supramolecule supramolecule_id="2">
                <name>Clathrin</name>
                <parent>1</parent>
                <details>Clathrin in the clathrin/AP2 coat formed on the membrane</details>
                <natural_source database="NCBI">
                    <organism ncbi="9823">Sus scrofa</organism>
                    <organ>brain</organ>
                </natural_source>
            </complex_supramolecule>
            <complex_supramolecule supramolecule_id="3">
                <name>AP2</name>
                <parent>1</parent>
                <details>AP2 in clathrin coat formed on membranes containing  dileucine- and tyrosine-based cargo peptides</details>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="866768">Escherichia coli 'BL21-Gold(DE3)pLysS AG'</recombinant_organism>
                </recombinant_expression>
            </complex_supramolecule>
        </supramolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>subtomogramAveraging</method>
            <aggregation_state>threeDArray</aggregation_state>
            <specimen_preparation_list>
                <subtomogram_averaging_preparation preparation_id="1">
                    <concentration units="mg/mL">0.7</concentration>
                    <buffer>
                        <ph>7.2</ph>
                        <component>
                            <concentration units="mM">10.0</concentration>
                            <name>Hepes KOH</name>
                        </component>
                        <component>
                            <concentration units="mM">120.0</concentration>
                            <name>Potassium Acetate</name>
                        </component>
                        <component>
                            <concentration units="mM">2.0</concentration>
                            <name>Magnesium chloride</name>
                        </component>
                        <component>
                            <concentration units="mM">5.0</concentration>
                            <name>2-Mercaptoethanol</name>
                        </component>
                    </buffer>
                    <grid>
                        <model>C-flat-2/2</model>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>HOLEY</film_topology>
                        </support_film>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">98</chamber_humidity>
                        <chamber_temperature units="K">291</chamber_temperature>
                        <instrument>LEICA EM GP</instrument>
                        <details>The sample was supplemented with 10 nm nanogold fiducials, and 3 ul of the mixture was backside blotted for 3 seconds.. </details>
                    </vitrification>
                    <details>The sample (in vitro budding reaction) contained AP2, clathrin and 400 nm extruded liposomes</details>
                </subtomogram_averaging_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <subtomogram_averaging_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>
                    <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">1.5</nominal_defocus_min>
                    <calibrated_defocus_min units="µm">1.5</calibrated_defocus_min>
                    <nominal_defocus_max units="µm">6.5</nominal_defocus_max>
                    <calibrated_defocus_max units="µm">6.5</calibrated_defocus_max>
                    <nominal_magnification>81000.0</nominal_magnification>
                    <calibrated_magnification>81000.0</calibrated_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <alignment_procedure>
                        <zemlin_tableau />
                    </alignment_procedure>
                    <specialist_optics>
                        <energy_filter>
                            <name>GIF Quantum LS</name>
                            <slit_width units="eV">20</slit_width>
                        </energy_filter>
                    </specialist_optics>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K2 QUANTUM (4k x 4k)</film_or_detector_model>
                            <detector_mode>COUNTING</detector_mode>
                            <digitization_details>
                                <dimensions>
                                    <width units="pixel">3838</width>
                                    <height units="pixel">3710</height>
                                </dimensions>
                                <frames_per_image>1-10</frames_per_image>
                            </digitization_details>
                            <number_grids_imaged>2</number_grids_imaged>
                            <average_exposure_time units="s">0.2</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">3.2</average_electron_dose_per_image>
                            <details>The images were collected in movie mode at 10 frames per second</details>
                        </image_recording>
                    </image_recording_list>
                </subtomogram_averaging_microscopy>
            </microscopy_list>
            <subtomogram_averaging_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <details>The images were low pass filtered according to the cumulative radiation dose.</details>
                <final_reconstruction>
                    <applied_symmetry>
                        <point_group>C1</point_group>
                    </applied_symmetry>
                    <resolution res_type="BY AUTHOR" units="Å">11.9</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>TOM</name>
                        </software>
                        <software>
                            <name>AV3</name>
                        </software>
                    </software_list>
                    <number_subtomograms_used>14805</number_subtomograms_used>
                </final_reconstruction>
                <extraction>
                    <number_tomograms>25694</number_tomograms>
                    <number_images_used>224577</number_images_used>
                    <reference_model>reference-free</reference_model>
                    <method>geometrically defined initial positions on membrane strctures</method>
                    <software_list>
                        <software>
                            <name>TOM</name>
                        </software>
                    </software_list>
                </extraction>
                <ctf_correction>
                    <software_list>
                        <software>
                            <name>NOVACTF</name>
                            <version>1.0</version>
                        </software>
                    </software_list>
                    <details>CTF correction in novaCTF with by multiplication</details>
                </ctf_correction>
                <final_angle_assignment>
                    <type>OTHER</type>
                    <software_list>
                        <software>
                            <name>TOM</name>
                        </software>
                        <software>
                            <name>AV3</name>
                        </software>
                    </software_list>
                </final_angle_assignment>
            </subtomogram_averaging_processing>
        </structure_determination>
    </structure_determination_list>
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            <alpha units="deg">90.0</alpha>
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        <annotation_details>Sharpened map of AP2 in clathrin coat formed on membranes containing  tyrosine-based cargo peptides</annotation_details>
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        <modelling_list>
            <modelling>
                <initial_model>
                    <access_code>1XA7</access_code>
                </initial_model>
                <refinement_protocol>FLEXIBLE FIT</refinement_protocol>
                <target_criteria>correlation coefficient</target_criteria>
                <refinement_space>REAL</refinement_space>
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