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            <date>2020-09-30</date>
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            <deposition>2020-03-21</deposition>
            <header_release>2020-04-01</header_release>
            <map_release>2020-04-01</map_release>
            <update>2020-09-30</update>
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            <grant_reference>
                <funding_body>German Research Foundation (DFG)</funding_body>
                <code>FOR2092 (EN 1194/1-1)</code>
                <country>Germany</country>
            </grant_reference>
        </grant_support>
        <title>In situ cryo-electron tomogram of the Chlamydomonas chloroplast (Volta phase plate, bin4)</title>
        <authors_list>
            <author>Schaffer M</author>
            <author>Wietrzynski W</author>
            <author>Tegunov D</author>
            <author>Albert S</author>
            <author>Plitzko J</author>
            <author>Baumeister W</author>
            <author>Engel BD</author>
        </authors_list>
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            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Wietrzynski W</author>
                    <author order="2">Schaffer M</author>
                    <author order="3">Tegunov D</author>
                    <author order="4">Albert S</author>
                    <author order="5">Kanazawa A</author>
                    <author order="6">Plitzko JM</author>
                    <author order="7">Baumeister W</author>
                    <author order="8">Engel BD</author>
                    <title>Charting the native architecture of Chlamydomonas thylakoid membranes with single-molecule precision.</title>
                    <journal_abbreviation>Elife</journal_abbreviation>
                    <country>US</country>
                    <volume>9</volume>
                    <year>2020</year>
                    <external_references type="PUBMED">32297859</external_references>
                    <external_references type="DOI">doi:10.7554/eLife.53740</external_references>
                    <external_references type="ISSN">2050-084X</external_references>
                </journal_citation>
            </primary_citation>
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            <emdb_reference>
                <emdb_id>EMD-10783</emdb_id>
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            <emdb_reference>
                <emdb_id>EMD-10782</emdb_id>
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            <emdb_reference>
                <emdb_id>EMD-10781</emdb_id>
                <relationship>
                    <other>other EM volume</other>
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        <name>Whole Chlamydomonas cells</name>
        <supramolecule_list>
            <cell_supramolecule supramolecule_id="1">
                <name>Whole Chlamydomonas cells</name>
                <parent>0</parent>
                <details>Grown suspended in TAP media, with normal atmosphere aeration and constant light</details>
                <natural_source database="NCBI">
                    <organism ncbi="3055">Chlamydomonas reinhardtii</organism>
                    <strain>mat3-4</strain>
                </natural_source>
            </cell_supramolecule>
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            <method>tomography</method>
            <aggregation_state>cell</aggregation_state>
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                    <buffer>
                        <ph>7</ph>
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                    </buffer>
                    <grid>
                        <model>Quantifoil R2/1</model>
                        <material>COPPER</material>
                        <mesh>200</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>HOLEY</film_topology>
                        </support_film>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <atmosphere>AIR</atmosphere>
                        </pretreatment>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE-PROPANE</cryogen_name>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                        <details>blotted from back for 10 seconds before plunging. </details>
                    </vitrification>
                    <sectioning>
                        <focused_ion_beam>
                            <instrument>OTHER</instrument>
                            <ion>OTHER</ion>
                            <voltage units="kV">30</voltage>
                            <current units="nA">0.03</current>
                            <duration units="s">2000</duration>
                            <temperature units="K">95</temperature>
                            <initial_thickness units="nm">1000</initial_thickness>
                            <final_thickness units="nm">75</final_thickness>
                            <details>See https://bio-protocol.org/e1575 for detailed procedure.. The value given for _emd_sectioning_focused_ion_beam.instrument is FEI Quanta FIB. This is not in a list of allowed values set(['DB235', 'OTHER']) so OTHER is written into the XML file.</details>
                        </focused_ion_beam>
                    </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>
                    <c2_aperture_diameter units="µm">70.0</c2_aperture_diameter>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_defocus_min units="µm">0.5</nominal_defocus_min>
                    <nominal_defocus_max units="µm">0.5</nominal_defocus_max>
                    <nominal_magnification>42000.0</nominal_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>
                        <energy_filter>
                            <name>GIF Quantum LS</name>
                            <slit_width units="eV">20</slit_width>
                        </energy_filter>
                    </specialist_optics>
                    <details>Bidirectional tilt scheme, separated at 0 degrees, Volta Phase Plate</details>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K2 SUMMIT (4k x 4k)</film_or_detector_model>
                            <detector_mode>COUNTING</detector_mode>
                            <digitization_details/>
                            <number_real_images>61</number_real_images>
                            <average_exposure_time units="s">1.5</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">1.5</average_electron_dose_per_image>
                            <details>Images were collected in movie-mode at 12 frames per second</details>
                        </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>
                        </software>
                    </software_list>
                    <number_images_used>61</number_images_used>
                </final_reconstruction>
                <ctf_correction>
                    <software_list>
                        <software>
                            <name>IMOD</name>
                        </software>
                    </software_list>
                </ctf_correction>
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            <b units="Å">12695.04</b>
            <c units="Å">6347.52</c>
            <alpha units="deg">90.0</alpha>
            <beta units="deg">90.0</beta>
            <gamma units="deg">90.0</gamma>
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