<?xml version='1.0' encoding='utf-8'?>
<emd emdb_id="EMD-0824" version="3.0.2.6" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://github.com/emdb-empiar/emdb-schemas/blob/master/v3/v3_0_2_6/emdb.xsd">
    <admin>
        <current_status>
            <date>2021-10-27</date>
            <code>REL</code>
            <processing_site>PDBj</processing_site>
        </current_status>
        <sites>
            <deposition>PDBj</deposition>
            <last_processing>PDBj</last_processing>
        </sites>
        <key_dates>
            <deposition>2019-10-12</deposition>
            <header_release>2020-10-14</header_release>
            <map_release>2020-10-14</map_release>
            <update>2021-10-27</update>
        </key_dates>
        <title>Cryo-EM map for N terminal domain of human MCM8/9 complex</title>
        <authors_list>
            <author>Li J</author>
            <author>Yu D</author>
            <author>Liu L</author>
            <author>Zeng H</author>
            <author>Hu Z</author>
            <author>Xu H</author>
            <author>Liu B</author>
            <author>Liang H</author>
            <author>Ouyang Q</author>
            <author>Liu Y</author>
        </authors_list>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Li J</author>
                    <author order="2">Yu D</author>
                    <author order="3">Liu L</author>
                    <author order="4">Liang H</author>
                    <author order="5">Ouyang Q</author>
                    <author order="6">Liu Y</author>
                    <title>Structural study of the N-terminal domain of human MCM8/9 complex.</title>
                    <journal_abbreviation>Structure</journal_abbreviation>
                    <country>UK</country>
                    <volume>29</volume>
                    <first_page>1171</first_page>
                    <last_page>1181.e4</last_page>
                    <year>2021</year>
                    <external_references type="PUBMED">34043945</external_references>
                    <external_references type="DOI">doi:10.1016/j.str.2021.05.006</external_references>
                    <external_references type="ISSN">0969-2126</external_references>
                    <external_references type="CSD">2005</external_references>
                    <external_references type="ASTM">STRUE6</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-0823</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-0824</emdb_id>
                <relationship>
                    <other>associated EM volume</other>
                </relationship>
            </emdb_reference>
        </emdb_list>
    </crossreferences>
    <sample>
        <name>Minichromosome Maintenance (MCM) 8/9 Complex</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Minichromosome Maintenance (MCM) 8/9 Complex</name>
                <parent>0</parent>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="7111">Trichoplusia ni</recombinant_organism>
                </recombinant_expression>
                <molecular_weight>
                    <theoretical units="MDa">0.5</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">0.3</concentration>
                    <buffer>
                        <ph>7.8</ph>
                        <component>
                            <concentration units="mM">20.0</concentration>
                            <name>HEPES</name>
                        </component>
                        <component>
                            <concentration units="mM">160.0</concentration>
                            <name>KCl</name>
                        </component>
                    </buffer>
                    <grid>
                        <model>C-flat-1.2/1.3 4C</model>
                        <material>GOLD</material>
                        <mesh>300</mesh>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                        </pretreatment>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">277</chamber_temperature>
                        <instrument>FEI VITROBOT MARK IV</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>
                    <c2_aperture_diameter units="µm">70.0</c2_aperture_diameter>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_defocus_min units="µm">0.7000000000000001</nominal_defocus_min>
                    <nominal_defocus_max units="µm">2.7</nominal_defocus_max>
                    <nominal_magnification>105000.0</nominal_magnification>
                    <calibrated_magnification>36496.0</calibrated_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <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>SUPER-RESOLUTION</detector_mode>
                            <digitization_details>
                                <dimensions>
                                    <width units="pixel">7420</width>
                                    <height units="pixel">7676</height>
                                </dimensions>
                                <frames_per_image>1-40</frames_per_image>
                            </digitization_details>
                            <number_real_images>3711</number_real_images>
                            <average_exposure_time units="s">10.0</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">50.0</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>
                <ctf_correction>
                    <software_list>
                        <software>
                            <name>Gctf</name>
                            <version>1.06</version>
                        </software>
                    </software_list>
                    <details>The CTF correction was performed in Relion automatically, using the defocus values calculated by Gctf software.</details>
                </ctf_correction>
                <startup_model type_of_model="INSILICO MODEL">
                    <details>Generated by CryoSPARC software</details>
                </startup_model>
                <final_reconstruction>
                    <applied_symmetry>
                        <point_group>C1</point_group>
                    </applied_symmetry>
                    <algorithm>BACK PROJECTION</algorithm>
                    <resolution res_type="BY AUTHOR" units="Å">6.6</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>2.1</version>
                        </software>
                    </software_list>
                    <details>The structure is obtained by focused refinement for N terminal domain of MCM 8/9 full complex</details>
                    <number_images_used>184677</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>2.1</version>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>2.1</version>
                        </software>
                    </software_list>
                </final_angle_assignment>
                <final_three_d_classification>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>2.1</version>
                        </software>
                    </software_list>
                </final_three_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="16385">
        <file>emd_0824.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>160</col>
            <row>160</row>
            <sec>160</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>160</x>
            <y>160</y>
            <z>160</z>
        </spacing>
        <cell>
            <a units="Å">219.2</a>
            <b units="Å">219.2</b>
            <c units="Å">219.2</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>-0.023522943</minimum>
            <maximum>0.062801406</maximum>
            <average>0.000586121</average>
            <std>0.0033867266</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">1.37</x>
            <y units="Å">1.37</y>
            <z units="Å">1.37</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.02</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-0824::::</label>
    </map>
</emd>