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    <admin>
        <current_status>
            <date>2025-01-29</date>
            <code>REL</code>
            <processing_site>PDBe</processing_site>
        </current_status>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2021-12-01</deposition>
            <header_release>2021-12-22</header_release>
            <map_release>2021-12-22</map_release>
            <update>2025-01-29</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>Swiss National Science Foundation</funding_body>
                <code>310030_185235</code>
                <country>Switzerland</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Medical Research Council (MRC, United Kingdom)</funding_body>
                <code>MC_UP_1201/6</code>
                <country>United Kingdom</country>
            </grant_reference>
        </grant_support>
        <title>Focused refined map of the TPR lobe of the Anaphase-promoting complex/cyclosome (APC/C)</title>
        <authors_list>
            <author ORCID="0000-0002-7126-2935">Hoefler A</author>
            <author ORCID="0000-0001-5642-3991">Yu J</author>
            <author ORCID="0000-0002-6107-5271">Chang L</author>
            <author ORCID="0000-0002-7268-9631">Zhang Z</author>
            <author ORCID="0000-0002-8984-4503">Yang J</author>
            <author ORCID="0000-0003-1218-6714">Boland A</author>
            <author ORCID="0000-0001-8810-950X">Barford D</author>
        </authors_list>
        <keywords>APC/C, cyclosome, Cdc20, Cdh1, ubiquitination, Emi1, mitosis, Cell cycle</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author ORCID="0000-0002-7126-2935" order="1">Hofler A</author>
                    <author ORCID="0000-0001-5642-3991" order="2">Yu J</author>
                    <author order="3">Yang J</author>
                    <author ORCID="0000-0002-7268-9631" order="4">Zhang Z</author>
                    <author ORCID="0000-0002-6107-5271" order="5">Chang L</author>
                    <author ORCID="0000-0001-9135-6253" order="6">McLaughlin SH</author>
                    <author ORCID="0000-0002-4957-8175" order="7">Grime GW</author>
                    <author ORCID="0000-0001-8329-5665" order="8">Garman EF</author>
                    <author ORCID="0000-0003-1218-6714" order="9">Boland A</author>
                    <author ORCID="0000-0001-8810-950X" order="10">Barford D</author>
                    <title>Cryo-EM structures of apo-APC/C and APC/C CDH1:EMI1 complexes provide insights into APC/C regulation.</title>
                    <journal_abbreviation>Nat Commun</journal_abbreviation>
                    <country>UK</country>
                    <volume>15</volume>
                    <first_page>10074</first_page>
                    <last_page>10074</last_page>
                    <year>2024</year>
                    <external_references type="PUBMED">39567505</external_references>
                    <external_references type="DOI">doi:10.1038/s41467-024-54398-5</external_references>
                    <external_references type="ISSN">2041-1723</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-13931</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-13932</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
        </emdb_list>
    </crossreferences>
    <sample>
        <name>Anaphase-promoting complex (APC/C) bound to co-activator Cdh1</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Anaphase-promoting complex (APC/C) bound to co-activator Cdh1</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>
                        <macromolecule_id>5</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>6</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>7</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>8</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>9</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>10</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>11</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>12</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>13</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>14</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>15</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>16</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">1.2</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">0.1</concentration>
                    <buffer>
                        <ph>8.0</ph>
                        <component>
                            <concentration units="mM">20.0</concentration>
                            <formula>Hepes</formula>
                            <name>2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid</name>
                        </component>
                        <component>
                            <concentration units="mM">200.0</concentration>
                            <formula>NaCl</formula>
                            <name>sodium chloride</name>
                        </component>
                        <component>
                            <concentration units="mM">2.0</concentration>
                            <formula>DTT</formula>
                            <name>Dithiothreitol</name>
                        </component>
                    </buffer>
                    <grid>
                        <model>Quantifoil R2/2</model>
                        <material>COPPER</material>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>CONTINUOUS</film_topology>
                            <film_thickness>50.0</film_thickness>
                        </support_film>
                        <pretreatment>
                            <type>PLASMA CLEANING</type>
                            <time units="s">20</time>
                            <atmosphere>OTHER</atmosphere>
                        </pretreatment>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">277.15</chamber_temperature>
                        <instrument>FEI VITROBOT MARK III</instrument>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_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>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <specimen_holder_model>OTHER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <alignment_procedure>
                        <coma_free/>
                    </alignment_procedure>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>FEI FALCON III (4k x 4k)</film_or_detector_model>
                            <detector_mode>COUNTING</detector_mode>
                            <digitization_details>
                                <dimensions>
                                    <width units="pixel">4096</width>
                                    <height units="pixel">4096</height>
                                </dimensions>
                            </digitization_details>
                            <number_real_images>8297</number_real_images>
                            <average_electron_dose_per_image units="e/Å^2">40.0</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>
                <particle_selection>
                    <number_selected>1800000</number_selected>
                    <details>The particles were automatically selected</details>
                </particle_selection>
                <startup_model type_of_model="NONE"/>
                <final_reconstruction>
                    <resolution units="Å" res_type="BY AUTHOR">2.85</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>2.14.2</version>
                            <processing_details>Local refinement</processing_details>
                        </software>
                    </software_list>
                    <number_images_used>364331</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>2.14.2</version>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>2.14.2</version>
                        </software>
                    </software_list>
                </final_angle_assignment>
                <final_three_d_classification>
                    <number_classes>8</number_classes>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.1 beta</version>
                        </software>
                    </software_list>
                </final_three_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="186625">
        <file>emd_13933.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>360</col>
            <row>360</row>
            <sec>360</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>360</x>
            <y>360</y>
            <z>360</z>
        </spacing>
        <cell>
            <a units="Å">385.2</a>
            <b units="Å">385.2</b>
            <c units="Å">385.2</c>
            <alpha units="deg">90.0</alpha>
            <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>-0.03774307</minimum>
            <maximum>1.9113202</maximum>
            <average>0.0023139876</average>
            <std>0.033902943</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">1.07</x>
            <y units="Å">1.07</y>
            <z units="Å">1.07</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.085</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-13933::::</label>
        <annotation_details>Focused refined map (sharpened with deepEMhancer) of the TPR lobe of the Anaphase-promoting complex/cyclosome (APC/C)</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <initial_model>
                    <access_code>4UI9</access_code>
                    <chain>
                        <source_name>PDB</source_name>
                        <initial_model_type>experimental model</initial_model_type>
                    </chain>
                </initial_model>
                <refinement_protocol>RIGID BODY FIT</refinement_protocol>
                <refinement_space>REAL</refinement_space>
                <overall_bvalue>80.0</overall_bvalue>
            </modelling>
        </modelling_list>
        <additional_map_list>
            <additional_map format="CCP4" size_kbytes="186625">
                <file>emd_13933_additional_1.map.gz</file>
                <symmetry>
                    <space_group>1</space_group>
                </symmetry>
                <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
                <dimensions>
                    <col>360</col>
                    <row>360</row>
                    <sec>360</sec>
                </dimensions>
                <origin>
                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
                </origin>
                <spacing>
                    <x>360</x>
                    <y>360</y>
                    <z>360</z>
                </spacing>
                <cell>
                    <a units="Å">385.2</a>
                    <b units="Å">385.2</b>
                    <c units="Å">385.2</c>
                    <alpha units="deg">90.0</alpha>
                    <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>-0.9336167</minimum>
                    <maximum>2.4436104</maximum>
                    <average>0.002904753</average>
                    <std>0.09006674</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">1.07</x>
                    <y units="Å">1.07</y>
                    <z units="Å">1.07</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-13933::::</label>
                <annotation_details>Focused refined map (unsharpened) of the TPR lobe of the Anaphase-promoting complex/cyclosome (APC/C)</annotation_details>
            </additional_map>
        </additional_map_list>
        <half_map_list>
            <half_map format="CCP4" size_kbytes="186625">
                <file>emd_13933_half_map_1.map.gz</file>
                <symmetry>
                    <space_group>1</space_group>
                </symmetry>
                <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
                <dimensions>
                    <col>360</col>
                    <row>360</row>
                    <sec>360</sec>
                </dimensions>
                <origin>
                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
                </origin>
                <spacing>
                    <x>360</x>
                    <y>360</y>
                    <z>360</z>
                </spacing>
                <cell>
                    <a units="Å">385.2</a>
                    <b units="Å">385.2</b>
                    <c units="Å">385.2</c>
                    <alpha units="deg">90.0</alpha>
                    <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>-1.0083032</minimum>
                    <maximum>2.5942667</maximum>
                    <average>0.005293872</average>
                    <std>0.12996876</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">1.07</x>
                    <y units="Å">1.07</y>
                    <z units="Å">1.07</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-13933::::</label>
                <annotation_details>Half map A of the TPR lobe of the Anaphase-promoting complex/cyclosome (APC/C)</annotation_details>
            </half_map>
            <half_map format="CCP4" size_kbytes="186625">
                <file>emd_13933_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>360</col>
                    <row>360</row>
                    <sec>360</sec>
                </dimensions>
                <origin>
                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
                </origin>
                <spacing>
                    <x>360</x>
                    <y>360</y>
                    <z>360</z>
                </spacing>
                <cell>
                    <a units="Å">385.2</a>
                    <b units="Å">385.2</b>
                    <c units="Å">385.2</c>
                    <alpha units="deg">90.0</alpha>
                    <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>-1.0120585</minimum>
                    <maximum>2.675482</maximum>
                    <average>0.0052839895</average>
                    <std>0.13032137</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">1.07</x>
                    <y units="Å">1.07</y>
                    <z units="Å">1.07</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-13933::::</label>
                <annotation_details>Half map B of the TPR lobe of the Anaphase-promoting complex/cyclosome (APC/C)</annotation_details>
            </half_map>
        </half_map_list>
    </interpretation>
</emd>
