<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" emdb_id="EMD-7812" version="3.0.0.0" xsi:schemaLocation="https://github.com/emdb-empiar/emdb-schemas/blob/master/v3/v3_0_0_0/emdb.xsd">
    <admin>
        <current_status>
            <date>2018-06-27</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2018-04-22</deposition>
            <header_release>2018-05-09</header_release>
            <map_release>2018-06-20</map_release>
            <update>2018-06-27</update>
        </key_dates>
        <title>Human nuclear exosome-MTR4 RNA complex - focused reconstruction on the DIS-PIN domain</title>
        <authors_list>
            <author>Weick E-M</author>
            <author>Lima CD</author>
        </authors_list>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Weick EM</author>
                    <author order="2">Puno MR</author>
                    <author order="3">Januszyk K</author>
                    <author order="4">Zinder JC</author>
                    <author order="5">DiMattia MA</author>
                    <author order="6">Lima CD</author>
                    <title>Helicase-Dependent RNA Decay Illuminated by a Cryo-EM Structure of a Human Nuclear RNA Exosome-MTR4 Complex.</title>
                    <journal_abbreviation>Cell</journal_abbreviation>
                    <volume>173</volume>
                    <first_page>1663</first_page>
                    <last_page>1677.e21</last_page>
                    <year>2018</year>
                    <external_references type="PUBMED">29906447</external_references>
                    <external_references type="DOI">doi:10.1016/j.cell.2018.05.041</external_references>
                    <external_references type="ISSN">1097-4172</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-7809</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
                <details>Composite map</details>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-7812</emdb_id>
                <relationship>
                    <other>associated EM volume</other>
                </relationship>
                <details>Human nuclear exosome-MTR4 RNA complex - composite map after focused reconstruction</details>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-7810</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-7808</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-7813</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-7814</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-7815</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-7818</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-7819</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
        </emdb_list>
    </crossreferences>
    <sample>
        <name>Human nuclear exosome-MTR4 helicase captured after unwinding a DNA/RNA substrate</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Human nuclear exosome-MTR4 helicase captured after unwinding a DNA/RNA substrate</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_list>
                <details>Human C1D/Rrp47 also in the sample, but was not observed in density</details>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <molecular_weight>
                    <theoretical units="MDa">0.69</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">1.0</concentration>
                    <buffer>
                        <ph>8.</ph>
                        <component>
                            <concentration units="mM">20.0</concentration>
                            <name>Tris-HCl</name>
                        </component>
                        <component>
                            <concentration units="mM">100.0</concentration>
                            <formula>NaCl</formula>
                            <name>sodium chloride</name>
                        </component>
                        <component>
                            <concentration units="mM">0.5</concentration>
                            <formula>MgCl2</formula>
                            <name>magnesium chloride</name>
                        </component>
                        <component>
                            <concentration units="mM">2.0</concentration>
                            <name>AMPPNP</name>
                        </component>
                        <component>
                            <concentration units="mM">1.0</concentration>
                            <name>BME</name>
                        </component>
                        <component>
                            <concentration units="%">0.05</concentration>
                            <name>CHAPSO</name>
                        </component>
                    </buffer>
                    <grid>
                        <model>Quantifoil R2/2</model>
                        <material>GOLD</material>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <atmosphere>AIR</atmosphere>
                            <pressure units="kPa">0.037</pressure>
                        </pretreatment>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_temperature units="K">298</chamber_temperature>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                        <details>30 sec wait time, 2.5 sec blot time. </details>
                    </vitrification>
                    <details>Sample was monodisperse upon elution from gel filtration prior to vitrification.</details>
                </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>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K2 SUMMIT (4k x 4k)</film_or_detector_model>
                            <detector_mode>SUPER-RESOLUTION</detector_mode>
                            <digitization_details />
                            <number_real_images>1439</number_real_images>
                            <average_electron_dose_per_image units="e/&#8491;^2">85.23</average_electron_dose_per_image>
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            <singleparticle_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <particle_selection>
                    <number_selected>278185</number_selected>
                </particle_selection>
                <ctf_correction>
                    <software_list>
                        <software>
                            <name>Gctf</name>
                            <version>1.06</version>
                            <processing_details>determine</processing_details>
                        </software>
                        <software>
                            <name>RELION</name>
                            <version>2.1.b1</version>
                            <processing_details>apply</processing_details>
                        </software>
                    </software_list>
                </ctf_correction>
                <startup_model type_of_model="NONE">
                    <details>Ab initio model determination</details>
                </startup_model>
                <final_reconstruction>
                    <number_classes_used>1</number_classes_used>
                    <applied_symmetry>
                        <point_group>C1</point_group>
                    </applied_symmetry>
                    <resolution res_type="BY AUTHOR" units="&#8491;">3.4</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>2.1b1</version>
                        </software>
                    </software_list>
                    <details>Focused refinement on DIS3-PIN and part of PH-ring</details>
                    <number_images_used>122284</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>RANDOM ASSIGNMENT</type>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>0.6.1</version>
                            <processing_details>from 0.6.1 to 0.6.5</processing_details>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing />
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>2.1b1</version>
                        </software>
                    </software_list>
                </final_angle_assignment>
                <final_three_d_classification>
                    <number_classes>4</number_classes>
                    <average_number_members_per_class>271036.</average_number_members_per_class>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>2.1b1</version>
                        </software>
                    </software_list>
                </final_three_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="226493">
        <file>emd_7812.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
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            <row>384</row>
            <sec>384</sec>
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            <z>384</z>
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            <b units="&#8491;">410.88</b>
            <c units="&#8491;">410.88</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>Z</fast>
            <medium>X</medium>
            <slow>Y</slow>
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        <statistics>
            <minimum>-0.120548755</minimum>
            <maximum>0.19239767</maximum>
            <average>0.00004187069</average>
            <std>0.0019666187</std>
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            <x units="&#8491;">1.07</x>
            <y units="&#8491;">1.07</y>
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        <contour_list>
            <contour primary="true">
                <level>0.03</level>
                <source>AUTHOR</source>
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        <label>::::EMDATABANK.org::::EMD-7812::::</label>
        <annotation_details>Human nuclear exosome-MTR4 RNA complex - composite map after focused reconstruction</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <refinement_protocol>BACKBONE TRACE</refinement_protocol>
                <details>Models were rebuilt manually using Coot, with real space refinement with local scaling followed by Phenix real space refinement with suboptimal global scaling.</details>
                <target_criteria>Correlation coefficient</target_criteria>
                <refinement_space>REAL</refinement_space>
                <overall_bvalue>64.299999999999997</overall_bvalue>
            </modelling>
        </modelling_list>
    </interpretation>
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