<?xml version="1.0" encoding="UTF-8"?>
<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://ftp.ebi.ac.uk/pub/databases/em_ebi/emdb_related/emdb-schemas/emdb_schemas/v3/v3_0_9_3/emdb.xsd" version="3.0.9.3" emdb_id="EMD-17248">
    <admin>
        <current_status>
            <date>2024-09-25</date>
            <code>REL</code>
            <processing_site>PDBe</processing_site>
        </current_status>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2023-04-28</deposition>
            <header_release>2023-12-27</header_release>
            <map_release>2023-12-27</map_release>
            <update>2024-09-25</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>Max Planck Society</funding_body>
                <country>Germany</country>
            </grant_reference>
        </grant_support>
        <title>Tomogram of the nucleus of a C. elegans L1 larva</title>
        <authors_list>
            <author>Schioetz OH</author>
            <author>Kaiser CJO</author>
            <author>Klumpe S</author>
            <author>Beck F</author>
            <author>Plitzko JM</author>
        </authors_list>
        <keywords>Caenorhabditis, elegans, nucleus, L1, larva, C. elegans, CYTOSOLIC PROTEIN</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author ORCID="0009-0008-3301-8270" order="1">Schiotz OH</author>
                    <author ORCID="0000-0002-8481-6845" order="2">Kaiser CJO</author>
                    <author ORCID="0000-0002-8350-6503" order="3">Klumpe S</author>
                    <author order="4">Morado DR</author>
                    <author order="5">Poege M</author>
                    <author order="6">Schneider J</author>
                    <author order="7">Beck F</author>
                    <author order="8">Klebl DP</author>
                    <author order="9">Thompson C</author>
                    <author ORCID="0000-0002-6402-8315" order="10">Plitzko JM</author>
                    <title>Serial Lift-Out: sampling the molecular anatomy of whole organisms.</title>
                    <journal_abbreviation>Nat.Methods</journal_abbreviation>
                    <country>US</country>
                    <volume>21</volume>
                    <first_page>1684</first_page>
                    <last_page>1692</last_page>
                    <year>2024</year>
                    <external_references type="PUBMED">38110637</external_references>
                    <external_references type="DOI">doi:10.1038/s41592-023-02113-5</external_references>
                    <external_references type="ISSN">1548-7105</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
    </crossreferences>
    <sample>
        <name>C. elegans L1 larva, CGC strain AM140</name>
        <supramolecule_list>
            <tissue_supramolecule supramolecule_id="1">
                <name>C. elegans L1 larva, CGC strain AM140</name>
                <parent>0</parent>
                <natural_source database="NCBI">
                    <organism ncbi="6239">Caenorhabditis elegans</organism>
                    <strain>AM140</strain>
                    <tissue>Whole L1 larva</tissue>
                </natural_source>
            </tissue_supramolecule>
        </supramolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>tomography</method>
            <aggregation_state>tissue</aggregation_state>
            <specimen_preparation_list>
                <tomography_preparation preparation_id="1">
                    <buffer>
                        <ph>7.5</ph>
                        <details>M9 buffer + 20% Ficoll 400</details>
                    </buffer>
                    <grid>
                        <model>Homemade</model>
                        <support_film film_type_id="1">
                            <film_material>FORMVAR</film_material>
                            <film_topology>CONTINUOUS</film_topology>
                            <film_thickness>100.0</film_thickness>
                        </support_film>
                    </grid>
                    <vitrification>
                        <cryogen_name>NITROGEN</cryogen_name>
                        <details>High pressure freezing, Leica EM ICE. </details>
                    </vitrification>
                    <details>Developmentally arrested L1 larvae</details>
                    <high_pressure_freezing>
                        <instrument>OTHER</instrument>
                        <details>The value given for _em_high_pressure_freezing.instrument is Leica EM ICE. This is not in a list of allowed values {'LEICA EM HPM100', 'LEICA EM PACT', 'LEICA EM PACT2', 'BAL-TEC HPM 010', 'EMS-002 RAPID IMMERSION FREEZER', 'OTHER'} so OTHER is written into the XML file.</details>
                    </high_pressure_freezing>
                    <cryo_protectant>20% Ficoll 400</cryo_protectant>
                    <sectioning>
                        <focused_ion_beam>
                            <instrument>OTHER</instrument>
                            <ion>OTHER</ion>
                            <voltage>30</voltage>
                            <current>0.03</current>
                            <duration>1800</duration>
                            <temperature units="K">80</temperature>
                            <initial_thickness>4000</initial_thickness>
                            <final_thickness>250</final_thickness>
                            <details>Serial Lift-Out of 160000 nm original volume sectioned into 4000 nm slices, thinned to roughly 250 nm. The value given for _em_focused_ion_beam.instrument is TFS Aquilos 2. This is not in a list of allowed values {'OTHER', 'DB235'} 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">50.0</c2_aperture_diameter>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_defocus_min units="µm">1.5</nominal_defocus_min>
                    <nominal_defocus_max units="µm">4.5</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>
                        <coma_free/>
                    </alignment_procedure>
                    <specialist_optics>
                        <energy_filter>
                            <name>TFS Selectris X</name>
                            <slit_width units="eV">10</slit_width>
                        </energy_filter>
                    </specialist_optics>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>FEI FALCON IV (4k x 4k)</film_or_detector_model>
                            <digitization_details>
                                <dimensions>
                                    <width units="pixel">4096</width>
                                    <height units="pixel">4096</height>
                                </dimensions>
                            </digitization_details>
                            <number_grids_imaged>1</number_grids_imaged>
                            <number_real_images>52</number_real_images>
                            <average_exposure_time units="s">2.24</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">2.0</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>
                    <software_list>
                        <software>
                            <name>IMOD</name>
                            <version>4.12.32</version>
                        </software>
                    </software_list>
                    <number_images_used>56</number_images_used>
                </final_reconstruction>
            </tomography_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="2147484">
        <file>emd_17248.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>1024</col>
            <row>1024</row>
            <sec>512</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>-44</sec>
        </origin>
        <spacing>
            <x>1024</x>
            <y>1024</y>
            <z>512</z>
        </spacing>
        <cell>
            <a units="Å">12001.28</a>
            <b units="Å">12001.28</b>
            <c units="Å">6000.64</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>-2322224.0</minimum>
            <maximum>2317715.799999999813735</maximum>
            <average>9765.980999999999767</average>
            <std>370705.700000000011642</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">11.72</x>
            <y units="Å">11.72</y>
            <z units="Å">11.72</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-17248::::</label>
        <annotation_details>Bin4 nuclear periphery tomogram</annotation_details>
    </map>
    <interpretation>
        <additional_map_list>
            <additional_map format="CCP4" size_kbytes="268436">
                <file>emd_17248_additional_1.map.gz</file>
                <symmetry>
                    <space_group>1</space_group>
                </symmetry>
                <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
                <dimensions>
                    <col>512</col>
                    <row>512</row>
                    <sec>256</sec>
                </dimensions>
                <origin>
                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
                </origin>
                <spacing>
                    <x>512</x>
                    <y>512</y>
                    <z>256</z>
                </spacing>
                <cell>
                    <a units="Å">12001.28</a>
                    <b units="Å">12001.28</b>
                    <c units="Å">6000.64</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>-5.9232655</minimum>
                    <maximum>7.010239</maximum>
                    <average>0.15440154</average>
                    <std>0.77483976</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">23.44</x>
                    <y units="Å">23.44</y>
                    <z units="Å">23.44</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-17248::::</label>
                <annotation_details>Bin8 denoised tomogram (cryo-CARE)</annotation_details>
            </additional_map>
        </additional_map_list>
    </interpretation>
</emd>
