<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" emdb_id="EMD-9568" 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>2017-01-25</date>
            <code>REL</code>
            <processing_site>PDBj</processing_site>
        </current_status>
        <sites>
            <deposition>PDBj</deposition>
            <last_processing>PDBj</last_processing>
        </sites>
        <key_dates>
            <deposition>2016-10-08</deposition>
            <header_release>2016-11-02</header_release>
            <map_release>2016-12-21</map_release>
            <update>2017-01-25</update>
        </key_dates>
        <title>human RAD51 presynaptic complex</title>
        <authors_list>
            <author>Xu J</author>
            <author>Zhao L</author>
            <author>Xu Y</author>
            <author>Zhao W</author>
            <author>Sung P</author>
            <author>Wang HW</author>
        </authors_list>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Xu J</author>
                    <author order="2">Zhao L</author>
                    <author order="3">Xu Y</author>
                    <author order="4">Zhao W</author>
                    <author order="5">Sung P</author>
                    <author order="6">Wang HW</author>
                    <title>Cryo-EM structures of human RAD51 recombinase filaments during catalysis of DNA-strand exchange</title>
                    <journal_abbreviation>Nat. Struct. Mol. Biol.</journal_abbreviation>
                    <country>US</country>
                    <volume>24</volume>
                    <first_page>40</first_page>
                    <last_page>46</last_page>
                    <year>2017</year>
                    <external_references type="PUBMED">27941862</external_references>
                    <external_references type="DOI">doi:10.1038/nsmb.3336</external_references>
                    <external_references type="ISSN">1545-9985</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-9566</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-9567</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
                <details>human RAD51 presynaptic complex</details>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-9568</emdb_id>
                <relationship>
                    <other>associated EM volume</other>
                </relationship>
            </emdb_reference>
        </emdb_list>
    </crossreferences>
    <sample>
        <name>Arrested state in human RAD51-mediated DNA strand exchange</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Arrested state in human RAD51-mediated DNA strand exchange</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>2</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="kDa/nm">26.12</theoretical>
                </molecular_weight>
            </complex_supramolecule>
        </supramolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>helical</method>
            <aggregation_state>filament</aggregation_state>
            <specimen_preparation_list>
                <helical_preparation preparation_id="1">
                    <concentration units="mg/mL">0.075</concentration>
                    <buffer>
                        <ph>7.5</ph>
                        <details>25mM Tris-HCl, pH 7.5, 50mM KCl, 1mM dithiothreitol, 1mM AMP-PNP, 2mM MgCl2</details>
                    </buffer>
                    <grid>
                        <model>Quantifoil R1.2/1.3</model>
                        <material>COPPER</material>
                        <mesh>300</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>HOLEY</film_topology>
                            <film_thickness units="nm">20.0</film_thickness>
                        </support_film>
                        <pretreatment>
                            <type>PLASMA CLEANING</type>
                            <atmosphere>AIR</atmosphere>
                            <pressure units="kPa">101.325</pressure>
                        </pretreatment>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">289</chamber_temperature>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                        <details />
                    </vitrification>
                </helical_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <helical_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="&#181;m">70.0</c2_aperture_diameter>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_defocus_min units="&#181;m">1.5</nominal_defocus_min>
                    <calibrated_defocus_min units="&#181;m">1.5</calibrated_defocus_min>
                    <nominal_defocus_max units="&#181;m">2.5</nominal_defocus_max>
                    <calibrated_defocus_max units="&#181;m">2.5</calibrated_defocus_max>
                    <nominal_magnification>22500.</nominal_magnification>
                    <calibrated_magnification>22500.</calibrated_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <temperature>
                        <temperature_min units="K">80.0</temperature_min>
                        <temperature_max units="K">80.0</temperature_max>
                    </temperature>
                    <alignment_procedure>
                        <coma_free />
                    </alignment_procedure>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>FEI FALCON II (4k x 4k)</film_or_detector_model>
                            <detector_mode>OTHER</detector_mode>
                            <digitization_details>
                                <dimensions>
                                    <width units="pixel">4096</width>
                                    <height units="pixel">4096</height>
                                </dimensions>
                                <sampling_interval units="&#181;m">14.0</sampling_interval>
                                <frames_per_image>1-27</frames_per_image>
                            </digitization_details>
                            <number_grids_imaged>1</number_grids_imaged>
                            <number_real_images>202</number_real_images>
                            <average_exposure_time units="s">1.7</average_exposure_time>
                            <average_electron_dose_per_image units="e/&#8491;^2">50.0</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                </helical_microscopy>
            </microscopy_list>
            <helical_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <final_reconstruction>
                    <applied_symmetry>
                        <helical_parameters>
                            <delta_z units="&#8491;">15.27</delta_z>
                            <delta_phi units="deg">56.4</delta_phi>
                            <axial_symmetry>C1</axial_symmetry>
                        </helical_parameters>
                    </applied_symmetry>
                    <algorithm>FOURIER SPACE</algorithm>
                    <resolution res_type="BY AUTHOR" units="&#8491;">14.0</resolution>
                    <resolution_method>FSC 0.5 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>FREALIGN</name>
                            <version>9.09</version>
                        </software>
                    </software_list>
                    <number_images_used>1998</number_images_used>
                </final_reconstruction>
                <ctf_correction>
                    <software_list>
                        <software>
                            <name>CTFFIND3</name>
                        </software>
                    </software_list>
                </ctf_correction>
                <segment_selection>
                    <number_selected>28455</number_selected>
                    <software_list>
                        <software>
                            <name>EMAN2</name>
                            <version>2.1</version>
                        </software>
                    </software_list>
                </segment_selection>
                <startup_model type_of_model="OTHER">
                    <details>Initial model is from Rad51 presynaptic complex low-pass filtered to 60 angstrom.</details>
                </startup_model>
                <final_angle_assignment>
                    <type>NOT APPLICABLE</type>
                    <software_list>
                        <software>
                            <name>FREALIGN</name>
                            <version>9.09</version>
                        </software>
                    </software_list>
                </final_angle_assignment>
            </helical_processing>
        </structure_determination>
    </structure_determination_list>
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        <file>emd_9568.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
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        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>400</col>
            <row>400</row>
            <sec>400</sec>
        </dimensions>
        <origin>
            <col>-200</col>
            <row>-200</row>
            <sec>-200</sec>
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        <spacing>
            <x>400</x>
            <y>400</y>
            <z>400</z>
        </spacing>
        <cell>
            <a units="&#8491;">419.99997</a>
            <b units="&#8491;">419.99997</b>
            <c units="&#8491;">419.99997</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>-0.2945868</minimum>
            <maximum>1.0507883</maximum>
            <average>0.010550541</average>
            <std>0.08465524</std>
        </statistics>
        <pixel_spacing>
            <x units="&#8491;">1.05</x>
            <y units="&#8491;">1.05</y>
            <z units="&#8491;">1.05</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.55</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-9568::::</label>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <refinement_space>REAL</refinement_space>
            </modelling>
        </modelling_list>
    </interpretation>
</emd>