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            <date>2020-12-09</date>
            <code>REL</code>
            <processing_site>PDBj</processing_site>
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        <sites>
            <deposition>PDBj</deposition>
            <last_processing>PDBj</last_processing>
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        <key_dates>
            <deposition>2019-11-24</deposition>
            <header_release>2019-12-18</header_release>
            <map_release>2019-12-18</map_release>
            <update>2020-12-09</update>
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                <funding_body>Ministry of Education (Singapore)</funding_body>
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                <country>Singapore</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Ministry of Education (Singapore)</funding_body>
                <code>R-154-000-B42-114</code>
                <country>Singapore</country>
            </grant_reference>
        </grant_support>
        <title>Volta electron cryotomograms of cryosections of fission yeast Schizosaccharomyces pombe cells, in G0 quiescence and arrested in G1 phase.</title>
        <authors_list>
            <author>Cai S</author>
            <author>Tan Z</author>
            <author>Nie X</author>
            <author>Shi J</author>
            <author>Gan L</author>
        </authors_list>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="false">
                    <author order="1">Cai S</author>
                    <author order="2">Tan Z</author>
                    <author order="3">Nie X</author>
                    <author order="4">Shi J</author>
                    <author order="5">Gan L</author>
                    <title>Structural and biochemical analysis of G0 S. pombe nuclei</title>
                    <journal_abbreviation>To Be Published</journal_abbreviation>
                    <external_references type="CSD">0353</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
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                <relationship>
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                <name>S. pombe cell in G0 quiescence</name>
                <parent>0</parent>
                <natural_source database="NCBI">
                    <organism ncbi="4896">Schizosaccharomyces pombe</organism>
                    <strain>MBY99 (972 h-)</strain>
                </natural_source>
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        </supramolecule_list>
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            <aggregation_state>cell</aggregation_state>
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                    <buffer>
                        <ph>7</ph>
                        <details>EMM-N (EMM without nitrogen)</details>
                    </buffer>
                    <grid>
                        <material>COPPER</material>
                        <mesh>200</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>CONTINUOUS</film_topology>
                        </support_film>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                        <details>The Vitrobot's cup was used to condense the ethane cryogen. Crimped copper tubes containing cell paste were held ~ 3 cm above the surface of the liquid ethane, then dropped.. </details>
                    </vitrification>
                    <fiducial_markers_list>
                        <fiducial_marker>
                            <manufacturer>BBI</manufacturer>
                            <diameter units="nanometer">10</diameter>
                        </fiducial_marker>
                    </fiducial_markers_list>
                    <high_pressure_freezing>
                        <instrument>OTHER</instrument>
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                    </high_pressure_freezing>
                    <cryo_protectant>30% dextran</cryo_protectant>
                    <sectioning>
                        <ultramicrotomy>
                            <instrument>Leica UC7/FC7</instrument>
                            <temperature units="K">123</temperature>
                            <final_thickness units="nm">70</final_thickness>
                        </ultramicrotomy>
                    </sectioning>
                </tomography_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <tomography_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>
                    <nominal_defocus_min units="µm">1.0</nominal_defocus_min>
                    <nominal_magnification>18000.0</nominal_magnification>
                    <calibrated_magnification>30400.0</calibrated_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <alignment_procedure>
                        <basic/>
                    </alignment_procedure>
                    <specialist_optics>
                        <phase_plate>VOLTA PHASE PLATE</phase_plate>
                    </specialist_optics>
                    <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>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>
                            </digitization_details>
                            <number_grids_imaged>1</number_grids_imaged>
                            <number_real_images>61</number_real_images>
                            <average_electron_dose_per_image units="e/Å^2">1.6</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                </tomography_microscopy>
            </microscopy_list>
            <tomography_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <final_reconstruction>
                    <algorithm>BACK PROJECTION</algorithm>
                    <software_list>
                        <software>
                            <name>IMOD</name>
                            <version>4.9</version>
                        </software>
                    </software_list>
                    <number_images_used>61</number_images_used>
                </final_reconstruction>
            </tomography_processing>
        </structure_determination>
    </structure_determination_list>
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            <b units="Å">18841.6</b>
            <c units="Å">671.6</c>
            <alpha units="deg">90.0</alpha>
            <beta units="deg">90.0</beta>
            <gamma units="deg">90.0</gamma>
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