<?xml version="1.0" encoding="UTF-8"?>
<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://github.com/emdb-empiar/emdb-schemas/blob/master/v3/v3_0_1_9/emdb.xsd" emdb_id="EMD-6837" version="3.0.1.9">
    <admin>
        <current_status>
            <date>2020-08-05</date>
            <code>REL</code>
            <processing_site>PDBj</processing_site>
        </current_status>
        <sites>
            <deposition>PDBj</deposition>
            <last_processing>PDBj</last_processing>
        </sites>
        <key_dates>
            <deposition>2017-10-18</deposition>
            <header_release>2018-01-31</header_release>
            <map_release>2018-01-31</map_release>
            <update>2020-08-05</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>JSPS</funding_body>
                <code>JP25116002</code>
                <country>Japan</country>
            </grant_reference>
            <grant_reference>
                <funding_body>JSPS</funding_body>
                <code>16K18473</code>
                <country>Japan</country>
            </grant_reference>
            <grant_reference>
                <funding_body>JSPS</funding_body>
                <code>JP25250023</code>
                <country>Japan</country>
            </grant_reference>
        </grant_support>
        <title>Human HP1gamma-dinucleosome H3K9Me3</title>
        <authors_list>
            <author>Machida S</author>
            <author>Takizawa Y</author>
            <author>Ishimaru M</author>
            <author>Sekine S</author>
            <author>Sugita Y</author>
            <author>Nakayama J</author>
            <author>Wolf M</author>
            <author>Kurumizaka H</author>
        </authors_list>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Machida S</author>
                    <author order="2">Takizawa Y</author>
                    <author order="3">Ishimaru M</author>
                    <author order="4">Sugita Y</author>
                    <author order="5">Sekine S</author>
                    <author order="6">Nakayama JI</author>
                    <author order="7">Wolf M</author>
                    <author order="8">Kurumizaka H</author>
                    <title>Structural Basis of Heterochromatin Formation by Human HP1.</title>
                    <journal_abbreviation>Mol. Cell</journal_abbreviation>
                    <country>US</country>
                    <year>2018</year>
                    <external_references type="PUBMED">29336876</external_references>
                    <external_references type="DOI">doi:10.1016/j.molcel.2017.12.011</external_references>
                    <external_references type="ISSN">1097-4164</external_references>
                    <external_references type="CSD">2168</external_references>
                    <external_references type="ASTM">MOCEFL</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-6738</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
                <details>HP1alpha dinucleosome A</details>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-6739</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
                <details>HP1alpha dinucleosome B</details>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-6740</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
                <details>HP1alpha dinucleosome C</details>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-6836</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
                <details>HP1beta dinucleosome</details>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-6835</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
                <details>Mononucleosome from dinuc-HP1a</details>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-6837</emdb_id>
                <relationship>
                    <other>associated EM volume</other>
                </relationship>
                <details>Human HP1gamma-dinucleosome H3K9Me3</details>
            </emdb_reference>
        </emdb_list>
    </crossreferences>
    <sample>
        <name>Human HP1gamma-dinucleosome H3K9Me3 complex</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Human HP1gamma-dinucleosome H3K9Me3 complex</name>
                <parent>0</parent>
                <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_plasmid>pH2A, pH2B, pH3.2K9C/C110A, pH4, pHP1g-pre</recombinant_plasmid>
                </recombinant_expression>
                <molecular_weight>
                    <theoretical units="MDa">.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">.8</concentration>
                    <buffer>
                        <ph>7.5</ph>
                        <component>
                            <concentration units="mM">20.0</concentration>
                            <formula>(HOCH2)3CNH2</formula>
                            <name>Tris-HCl</name>
                        </component>
                        <component>
                            <concentration units="mM">1.0</concentration>
                            <formula>Dithiothreitol</formula>
                            <name>DTT</name>
                        </component>
                    </buffer>
                    <grid>
                        <model>Quantifoil R1.2/1.3</model>
                        <material>COPPER</material>
                        <mesh>200</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>HOLEY</film_topology>
                            <film_thickness units="nm">100.0</film_thickness>
                        </support_film>
                        <pretreatment>
                            <type>PLASMA CLEANING</type>
                            <atmosphere>OTHER</atmosphere>
                            <pressure units="kPa">9.33</pressure>
                        </pretreatment>
                        <details>Gatan Solarus</details>
                    </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>3 second blot, 2.5uL. </details>
                    </vitrification>
                    <details>sample was monodisperse</details>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>FEI TALOS ARCTICA</microscope>
                    <illumination_mode>FLOOD BEAM</illumination_mode>
                    <imaging_mode>BRIGHT FIELD</imaging_mode>
                    <electron_source>FIELD EMISSION GUN</electron_source>
                    <acceleration_voltage units="kV">200</acceleration_voltage>
                    <c2_aperture_diameter units="µm">50.0</c2_aperture_diameter>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_defocus_min units="µm">-0.5</nominal_defocus_min>
                    <calibrated_defocus_min units="µm">-0.5</calibrated_defocus_min>
                    <nominal_defocus_max units="µm">-0.5</nominal_defocus_max>
                    <calibrated_defocus_max units="µm">-0.5</calibrated_defocus_max>
                    <nominal_magnification>73000.0</nominal_magnification>
                    <calibrated_magnification>100000.0</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">77.0</temperature_min>
                        <temperature_max units="K">100.0</temperature_max>
                    </temperature>
                    <alignment_procedure>
                        <coma_free>
                            <residual_tilt units="mrad">0.1</residual_tilt>
                        </coma_free>
                    </alignment_procedure>
                    <specialist_optics>
                        <phase_plate>VOLTA PHASE PLATE</phase_plate>
                    </specialist_optics>
                    <details>nanoprobe, parallel beam illumination</details>
                    <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>INTEGRATING</detector_mode>
                            <digitization_details>
                                <dimensions>
                                    <width units="pixel">4096</width>
                                    <height units="pixel">4096</height>
                                </dimensions>
                                <sampling_interval units="µm">14.0</sampling_interval>
                                <frames_per_image>1-40</frames_per_image>
                            </digitization_details>
                            <number_grids_imaged>1</number_grids_imaged>
                            <number_real_images>3010</number_real_images>
                            <average_exposure_time units="s">1.0</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">67.0</average_electron_dose_per_image>
                            <details>Images were collected with a volta phase plate (VPP) at a target defocus of -500nm</details>
                        </image_recording>
                    </image_recording_list>
                </single_particle_microscopy>
            </microscopy_list>
            <singleparticle_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <details>frame alignment and integration with motioncor2 incl. dose weighting</details>
                <particle_selection>
                    <number_selected>361308</number_selected>
                </particle_selection>
                <ctf_correction>
                    <software_list>
                        <software>
                            <name>CTFFIND</name>
                            <version>4.1</version>
                            <processing_details>phase shift fitting</processing_details>
                        </software>
                    </software_list>
                    <details>in-focus VPP data</details>
                </ctf_correction>
                <startup_model type_of_model="OTHER">
                    <details>cylinder generated in SPIDER</details>
                </startup_model>
                <final_reconstruction>
                    <number_classes_used>1</number_classes_used>
                    <applied_symmetry>
                        <point_group>C1</point_group>
                    </applied_symmetry>
                    <algorithm>FOURIER SPACE</algorithm>
                    <resolution units="Å" res_type="BY AUTHOR">24.0</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>2.1</version>
                        </software>
                    </software_list>
                    <number_images_used>12067</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing/>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>2.1</version>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing/>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>2.1</version>
                        </software>
                    </software_list>
                </final_angle_assignment>
                <final_three_d_classification>
                    <number_classes>6</number_classes>
                    <average_number_members_per_class>11889</average_number_members_per_class>
                    <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="67109">
        <file>emd_6837.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>256</col>
            <row>256</row>
            <sec>256</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>256</x>
            <y>256</y>
            <z>256</z>
        </spacing>
        <cell>
            <a units="Å">358.4</a>
            <b units="Å">358.4</b>
            <c units="Å">358.4</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>-4.032715</minimum>
            <maximum>14.163276</maximum>
            <average>0.0000000040</average>
            <std>1</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">1.4</x>
            <y units="Å">1.4</y>
            <z units="Å">1.4</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>4</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-6837::::</label>
        <annotation_details>HP1gamma dinucleosome-H3K9me3 complex</annotation_details>
    </map>
</emd>
