<?xml version='1.0' encoding='utf-8'?>
<emd emdb_id="EMD-22167" version="3.0.2.3" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://github.com/emdb-empiar/emdb-schemas/blob/master/v3/v3_0_2_3/emdb.xsd">
    <admin>
        <current_status>
            <date>2021-02-24</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2020-06-15</deposition>
            <header_release>2021-02-24</header_release>
            <map_release>2021-02-24</map_release>
            <update>2021-02-24</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)</funding_body>
                <code>R01AI122528</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Howard Hughes Medical Institute (HHMI)</funding_body>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>Cryo-EM map of KSHV ORF68</title>
        <authors_list>
            <author>Didychuk AL</author>
            <author>Gates SN</author>
            <author>Martin A</author>
            <author>Glaunsinger B</author>
        </authors_list>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Didychuk AL</author>
                    <author order="2">Gates SN</author>
                    <author order="3">Gardner MR</author>
                    <author order="4">Strong LM</author>
                    <author order="5">Martin A</author>
                    <author order="6">Glaunsinger BA</author>
                    <title>A pentameric protein ring with novel architecture is required for herpesviral packaging.</title>
                    <journal_abbreviation>Elife</journal_abbreviation>
                    <country>US</country>
                    <volume>10</volume>
                    <year>2021</year>
                    <external_references type="PUBMED">33554858</external_references>
                    <external_references type="DOI">doi:10.7554/eLife.62261</external_references>
                    <external_references type="ISSN">2050-084X</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-22167</emdb_id>
                <relationship>
                    <other>associated EM volume</other>
                </relationship>
            </emdb_reference>
        </emdb_list>
    </crossreferences>
    <sample>
        <name>Pentamer structure of KSHV ORF68</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Pentamer structure of KSHV ORF68</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="37296">Human gammaherpesvirus 8</organism>
                </natural_source>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="9606">Homo sapiens</recombinant_organism>
                </recombinant_expression>
                <molecular_weight>
                    <theoretical units="MDa">0.536</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">1.25</concentration>
                    <buffer>
                        <ph>7.6</ph>
                        <component>
                            <concentration units="mM">50.0</concentration>
                            <name>Hepes</name>
                        </component>
                        <component>
                            <concentration units="mM">50.0</concentration>
                            <formula>NaCl</formula>
                            <name>Sodium Chloride</name>
                        </component>
                        <component>
                            <concentration units="mM">50.0</concentration>
                            <formula>KCl</formula>
                            <name>Potassium Chloride</name>
                        </component>
                        <component>
                            <concentration units="mM">1.0</concentration>
                            <name>TCEP</name>
                        </component>
                        <component>
                            <concentration units="%">1.0</concentration>
                            <name>Glycerol</name>
                        </component>
                    </buffer>
                    <grid>
                        <model>C-flat</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>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">90</chamber_humidity>
                        <chamber_temperature units="K">295</chamber_temperature>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                        <details>2 second blot, 3 second wait. </details>
                    </vitrification>
                </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">100.0</c2_aperture_diameter>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_defocus_min units="µm">1.0</nominal_defocus_min>
                    <nominal_defocus_max units="µm">2.5</nominal_defocus_max>
                    <specimen_holder_model>OTHER</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 SUMMIT (4k x 4k)</film_or_detector_model>
                            <number_grids_imaged>1</number_grids_imaged>
                            <number_real_images>2408</number_real_images>
                            <average_exposure_time units="s">8.0</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">48.0</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>662435</number_selected>
                </particle_selection>
                <ctf_correction>
                    <software_list>
                        <software>
                            <name>Gctf</name>
                        </software>
                    </software_list>
                </ctf_correction>
                <startup_model type_of_model="OTHER">
                    <details>Negative stain initial model</details>
                </startup_model>
                <final_reconstruction>
                    <applied_symmetry>
                        <point_group>C5</point_group>
                    </applied_symmetry>
                    <resolution res_type="BY AUTHOR" units="Å">3.37</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                    </software_list>
                    <number_images_used>60772</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>ANGULAR RECONSTITUTION</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>ANGULAR RECONSTITUTION</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                    </software_list>
                </final_angle_assignment>
                <final_three_d_classification>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                    </software_list>
                </final_three_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="67109">
        <file>emd_22167.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">296.96</a>
            <b units="Å">296.96</b>
            <c units="Å">296.96</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>-0.06632936</minimum>
            <maximum>0.15669547</maximum>
            <average>0.0003705352</average>
            <std>0.004242617</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">1.16</x>
            <y units="Å">1.16</y>
            <z units="Å">1.16</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.045</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-22167::::</label>
        <annotation_details>ORF68</annotation_details>
    </map>
</emd>