<?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_2/emdb.xsd" version="3.0.9.2" emdb_id="EMD-18494">
    <admin>
        <current_status>
            <date>2024-04-03</date>
            <code>REL</code>
            <processing_site>PDBe</processing_site>
        </current_status>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2023-09-20</deposition>
            <header_release>2024-03-13</header_release>
            <map_release>2024-03-13</map_release>
            <update>2024-04-03</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>Austrian Science Fund</funding_body>
                <code>P33367</code>
                <country>Austria</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Austrian Science Fund</funding_body>
                <code>E435</code>
                <country>Austria</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Chan Zuckerberg Initiative</funding_body>
                <code>DAF2021-234754</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>European Research Council (ERC)</funding_body>
                <code>724373</code>
                <country>European Union</country>
            </grant_reference>
        </grant_support>
        <title>Cryo-electron tomogram of lift-out lamella from cell-derived extracellular matrix (example 5)</title>
        <authors_list>
            <author ORCID="0000-0002-9561-1239">Zens B</author>
            <author ORCID="0000-0001-7149-769X">Faessler F</author>
            <author ORCID="0000-0001-7967-2085">Hansen J</author>
            <author ORCID="0000-0001-9843-3522">Hauschild R</author>
            <author ORCID="0000-0002-3616-8580">Datler J</author>
            <author ORCID="0000-0003-3904-947X">Hodirnau V-V</author>
            <author ORCID="0000-0002-9438-4783">Zheden V</author>
            <author ORCID="0000-0002-7698-3061">Alanko J</author>
            <author ORCID="0000-0002-6620-9179">Sixt MK</author>
            <author ORCID="0000-0003-4790-8078">Schur FKM</author>
        </authors_list>
        <keywords>Extracellular matrix, cell-derived matrix, collagen, PROTEIN FIBRIL</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author ORCID="0000-0002-9561-1239" order="1">Zens B</author>
                    <author ORCID="0000-0001-7149-769X" order="2">Fassler F</author>
                    <author ORCID="0000-0001-7967-2085" order="3">Hansen JM</author>
                    <author ORCID="0000-0001-9843-3522" order="4">Hauschild R</author>
                    <author ORCID="0000-0002-3616-8580" order="5">Datler J</author>
                    <author ORCID="0000-0003-3904-947X" order="6">Hodirnau VV</author>
                    <author ORCID="0000-0002-9438-4783" order="7">Zheden V</author>
                    <author ORCID="0000-0002-7698-3061" order="8">Alanko J</author>
                    <author ORCID="0000-0002-6620-9179" order="9">Sixt M</author>
                    <author ORCID="0000-0003-4790-8078" order="10">Schur FKM</author>
                    <title>Lift-out cryo-FIBSEM and cryo-ET reveal the ultrastructural landscape of extracellular matrix.</title>
                    <journal_abbreviation>J.Cell Biol.</journal_abbreviation>
                    <country>US</country>
                    <volume>223</volume>
                    <year>2024</year>
                    <external_references type="PUBMED">38506714</external_references>
                    <external_references type="DOI">doi:10.1083/jcb.202309125</external_references>
                    <external_references type="ISSN">1540-8140</external_references>
                    <external_references type="CSD">2019</external_references>
                    <external_references type="ASTM">JCLBA3</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-18490</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-18491</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-18492</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-18493</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
        </emdb_list>
    </crossreferences>
    <sample>
        <name>Cryo-lamella prepared by lift-out cryo-FIB milling of cell-derived matrix from human telomerase-immortalized foreskin fibroblasts (TIFFs).</name>
        <supramolecule_list>
            <cell_supramolecule supramolecule_id="1">
                <name>Cryo-lamella prepared by lift-out cryo-FIB milling of cell-derived matrix from human telomerase-immortalized foreskin fibroblasts (TIFFs).</name>
                <parent>0</parent>
                <details>Cell-derived matrix was generated by growing TIFF cells on EM grids over 14 days of growth time.</details>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                    <organ>Skin</organ>
                    <tissue>Foreskin</tissue>
                </natural_source>
            </cell_supramolecule>
        </supramolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>tomography</method>
            <aggregation_state>cell</aggregation_state>
            <specimen_preparation_list>
                <tomography_preparation preparation_id="1">
                    <buffer>
                        <ph>7.4</ph>
                        <component>
                            <concentration units="Percent">10.0</concentration>
                            <name>Dextran</name>
                        </component>
                        <details>10% Dextran in 0.1M Phosphate Buffer, pH 7.4</details>
                    </buffer>
                    <grid>
                        <model>Quantifoil R2/2</model>
                        <material>GOLD</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>
                            <time units="s">120</time>
                            <atmosphere>AIR</atmosphere>
                        </pretreatment>
                        <details>ELMO Glow Discharge unit</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>NITROGEN</cryogen_name>
                    </vitrification>
                    <details>Cell-derived matrix obtained from TIFF-cells.</details>
                    <high_pressure_freezing>
                        <instrument>OTHER</instrument>
                        <details>High pressure freezing carriers were 3.0mm in diameter and 0.5mm thick. One carrier was flat, the second carrier had a central cavity of 2.0mm diameter and 0.02mm depth. Carriers were coated in 1-hexadecene prior to high pressure freezing.. The value given for _em_high_pressure_freezing.instrument is Bal-tec HPM010. This is not in a list of allowed values {'BAL-TEC HPM 010', 'EMS-002 RAPID IMMERSION FREEZER', 'LEICA EM PACT', 'LEICA EM PACT2', 'LEICA EM HPM100', 'OTHER'} so OTHER is written into the XML file.</details>
                    </high_pressure_freezing>
                    <cryo_protectant>10% Dextran (high MW)</cryo_protectant>
                    <sectioning>
                        <focused_ion_beam>
                            <instrument>OTHER</instrument>
                            <ion>OTHER</ion>
                            <voltage>30</voltage>
                            <current>0.03</current>
                            <duration>3600</duration>
                            <temperature units="K">80</temperature>
                            <initial_thickness>1000</initial_thickness>
                            <final_thickness>250</final_thickness>
                            <details>A block of sample was extracted from the sample bulk by cryo-lift out FIB milling, with a thickness of 5000-8000nm. It was attached to a second grid, where it was then milled down to 200-250nm thickness step by step.
Lamellae were milled in consecutive steps with 1nA (down to 3000nm thickness), 0.5nA (2000nm thickness), 0.1nA (1000nm), 50pA (500nm) and 30pA (200nm).
See associated publication for details.. The value given for _em_focused_ion_beam.instrument is TFS Aquilos II. 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>TFS 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_defocus_min units="µm">8.0</nominal_defocus_min>
                    <nominal_defocus_max units="µm">8.0</nominal_defocus_max>
                    <nominal_magnification>42000.0</nominal_magnification>
                    <calibrated_magnification>42000.0</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">80.0</temperature_min>
                        <temperature_max units="K">83.0</temperature_max>
                    </temperature>
                    <alignment_procedure>
                        <coma_free/>
                    </alignment_procedure>
                    <specialist_optics>
                        <energy_filter>
                            <name>GIF Bioquantum</name>
                            <slit_width units="eV">20</slit_width>
                        </energy_filter>
                    </specialist_optics>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K3 BIOQUANTUM (6k x 4k)</film_or_detector_model>
                            <digitization_details>
                                <dimensions>
                                    <width units="pixel">5760</width>
                                    <height units="pixel">4092</height>
                                </dimensions>
                            </digitization_details>
                            <average_exposure_time units="s">0.5</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">2.137</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>
                    <details>Reconstructed with AreTomo (version 1.3.4., Feb22) and processed with IsoNet (version 0.2).</details>
                    <number_images_used>61</number_images_used>
                </final_reconstruction>
            </tomography_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="367201">
        <file>emd_18494.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>510</col>
            <row>720</row>
            <sec>250</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>510</x>
            <y>720</y>
            <z>250</z>
        </spacing>
        <cell>
            <a units="Å">8718.96</a>
            <b units="Å">12309.12</b>
            <c units="Å">4274.0</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>-6.291202</minimum>
            <maximum>4.457733</maximum>
            <average>-0.46493977</average>
            <std>0.29180554</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">17.096</x>
            <y units="Å">17.096</y>
            <z units="Å">17.096</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-18494::::</label>
        <annotation_details>Tomogram acquired on cryo-lift-out lamella of cell-derived matrix showing intra- and extracellular granular structures.</annotation_details>
    </map>
</emd>
