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    <admin>
        <current_status>
            <date>2025-05-21</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <revision_history>
            <revision version="1.0" date="2025-05-21">
                <change_list>
                    <model>
                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
                    </model>
                </change_list>
            </revision>
        </revision_history>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2024-06-20</deposition>
            <header_release>2025-05-21</header_release>
            <map_release>2025-05-21</map_release>
            <update>2025-05-21</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>National Institutes of Health/National Eye Institute (NIH/NEI)</funding_body>
                <code>P41GM136508</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>MicroED structure of the human MP20 protein</title>
        <authors_list>
            <author>Nicolas WJ</author>
            <author>Shiriaeva A</author>
            <author>Martynowycz MW</author>
            <author>Grey AC</author>
            <author>Ruma Y</author>
            <author>Donaldson PJ</author>
            <author>Gonen T</author>
        </authors_list>
        <keywords>Lens, Cataract, MicroED, Tetraspanin, CELL ADHESION</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author ORCID="0000-0001-5970-8626" order="1">Nicolas WJ</author>
                    <author ORCID="0000-0002-4082-7884" order="2">Shiriaeva A</author>
                    <author order="3">Martynowycz MW</author>
                    <author ORCID="0000-0002-1540-1080" order="4">Grey AC</author>
                    <author order="5">Ruma YN</author>
                    <author ORCID="0000-0002-4008-1138" order="6">Donaldson PJ</author>
                    <author ORCID="0000-0002-9254-4069" order="7">Gonen T</author>
                    <title>Structure of the lens MP20 mediated adhesive junction.</title>
                    <journal_abbreviation>Nat Commun</journal_abbreviation>
                    <country>UK</country>
                    <volume>16</volume>
                    <first_page>2977</first_page>
                    <last_page>2977</last_page>
                    <year>2025</year>
                    <external_references type="PUBMED">40140346</external_references>
                    <external_references type="DOI">doi:10.1038/s41467-025-57903-6</external_references>
                    <external_references type="ISSN">2041-1723</external_references>
                </journal_citation>
            </primary_citation>
            <secondary_citation>
                <journal_citation published="true">
                    <author ORCID="0000-0001-5970-8626" order="8">Nicolas WJ</author>
                    <author ORCID="0000-0002-4082-7884" order="9">Shiriaeva A</author>
                    <author ORCID="0000-0003-0055-230X" order="10">Martynowycz MW</author>
                    <author ORCID="0000-0002-1540-1080" order="11">Grey AC</author>
                    <author ORCID="0000-0002-9817-8477" order="12">Ruma Y</author>
                    <author order="13">Donaldson PJ</author>
                    <author ORCID="0000-0002-9254-4069" order="14">Gonen T</author>
                    <title>Structure of the lens MP20 mediated adhesive junction</title>
                    <journal_abbreviation>bioRxiv</journal_abbreviation>
                    <country>US</country>
                    <year>2024</year>
                    <external_references type="PUBMED">38798449</external_references>
                    <external_references type="DOI">doi:10.1101/2024.05.13.594022</external_references>
                    <external_references type="ISSN">2692-8205</external_references>
                </journal_citation>
            </secondary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>9cbv</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>MP20 crystals grown in lipidic cubic phase</name>
        <supramolecule_list>
            <organelle_or_cellular_component_supramolecule supramolecule_id="1">
                <name>MP20 crystals grown in lipidic cubic phase</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <details>MP20 constructs were expressed in SF9 insect (Spodoptera frugiperda) cells using the Bac-to-bac 251 baculovirus expression system (Invitrogen).</details>
                <natural_source database="NCBI">
                    <organism ncbi="7108">Spodoptera frugiperda</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.022</theoretical>
                </molecular_weight>
            </organelle_or_cellular_component_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Lens fiber membrane intrinsic protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.025160506</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="7108">Spodoptera frugiperda</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MKTIIALSYIFCLVFADYKDDDDAKLQTMHHHHHHHHHHLEVLFQMYSFMGGGLFCAWVGTILLVVAMATDHWMQYRLSG
SFAHQGLWRYCLGNKCYLQTDSIAYWNATRAFMILSALCAISGIIMGIMAFAHQPTFSRISRPFSAGIMFFSSTLFVVLA
LAIYTGVTVSFLGRRFGDWRFSWSYILGWVAVLMTFFAGIFYMCAYRVHECRRLSTPR</string>
                    <external_references type="UNIPROTKB">P55344</external_references>
                </sequence>
            </protein_or_peptide>
        </macromolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>electronCrystallography</method>
            <aggregation_state>threeDArray</aggregation_state>
            <specimen_preparation_list>
                <crystallography_preparation preparation_id="1">
                    <buffer>
                        <ph>7.5</ph>
                    </buffer>
                    <grid>
                        <model>Quantifoil R2/2</model>
                        <material>COPPER</material>
                        <mesh>200</mesh>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                        </pretreatment>
                    </grid>
                    <vitrification>
                        <cryogen_name>OTHER</cryogen_name>
                        <details>Frozen in LN2 at ambiant humidity (~40%). </details>
                    </vitrification>
                    <crystal_formation>
                        <lipid_protein_ratio>3.2</lipid_protein_ratio>
                        <lipid_mixture>Molten lipid mix (90% w/w monoolein and 10% w/w cholesterol)</lipid_mixture>
                        <instrument>syringe coupling system (Hamilton)</instrument>
                    </crystal_formation>
                </crystallography_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <crystallography_microscopy microscopy_id="1">
                    <microscope>FEI TITAN KRIOS</microscope>
                    <illumination_mode>FLOOD BEAM</illumination_mode>
                    <imaging_mode>DIFFRACTION</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">0.0</nominal_defocus_min>
                    <nominal_defocus_max units="µm">0.0</nominal_defocus_max>
                    <nominal_magnification>2500.0</nominal_magnification>
                    <calibrated_magnification>2941.0</calibrated_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</name>
                            <slit_width units="eV">5</slit_width>
                        </energy_filter>
                    </specialist_optics>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>TFS FALCON 4i (4k x 4k)</film_or_detector_model>
                            <digitization_details>
                                <dimensions>
                                    <width units="pixel">4096</width>
                                    <height units="pixel">4096</height>
                                </dimensions>
                            </digitization_details>
                            <number_real_images>130000</number_real_images>
                            <number_diffraction_images>130000</number_diffraction_images>
                            <average_exposure_time units="s">0.00325</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">0.00361</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                    <camera_length units="mm">1202</camera_length>
                    <tilt_list>
                        <angle>-30.0</angle>
                        <angle>30.0</angle>
                    </tilt_list>
                </crystallography_microscopy>
            </microscopy_list>
            <crystallography_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <final_reconstruction>
                    <resolution units="Å" res_type="BY AUTHOR">3.5</resolution>
                    <resolution_method>DIFFRACTION PATTERN/LAYERLINES</resolution_method>
                    <software_list>
                        <software>
                            <name>PHENIX</name>
                        </software>
                    </software_list>
                </final_reconstruction>
                <ctf_correction>
                    <type>NONE</type>
                </ctf_correction>
                <molecular_replacement>
                    <software_list>
                        <software>
                            <name>PHENIX</name>
                        </software>
                    </software_list>
                </molecular_replacement>
                <crystallography_statistics>
                    <number_intensities_measured>58259</number_intensities_measured>
                    <number_structure_factors>2785</number_structure_factors>
                    <fourier_space_coverage>86.599999999999994</fourier_space_coverage>
                    <r_merge>0.3316</r_merge>
                    <overall_phase_error>28.84</overall_phase_error>
                    <overall_phase_residual>0.0</overall_phase_residual>
                    <phase_error_rejection_criteria>NONE</phase_error_rejection_criteria>
                    <high_resolution units="Å">3.5</high_resolution>
                    <shell_list>
                        <shell shell_id="1">
                            <high_resolution units="Å">3.5</high_resolution>
                            <low_resolution units="Å">52.26</low_resolution>
                            <number_structure_factors>2785</number_structure_factors>
                            <phase_residual>28.84</phase_residual>
                            <fourier_space_coverage>86.599999999999994</fourier_space_coverage>
                            <multiplicity>20.699999999999999</multiplicity>
                        </shell>
                    </shell_list>
                </crystallography_statistics>
            </crystallography_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="919">
        <file>emd_45428.map.gz</file>
        <symmetry>
            <space_group>90</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>94</col>
            <row>52</row>
            <sec>47</sec>
        </dimensions>
        <origin>
            <col>-12</col>
            <row>-38</row>
            <sec>-11</sec>
        </origin>
        <spacing>
            <x>72</x>
            <y>72</y>
            <z>180</z>
        </spacing>
        <cell>
            <a units="Å">56.18</a>
            <b units="Å">56.18</b>
            <c units="Å">142.5</c>
            <alpha units="deg">90.0</alpha>
            <beta units="deg">90.0</beta>
            <gamma units="deg">90.0</gamma>
        </cell>
        <axis_order>
            <fast>Z</fast>
            <medium>Y</medium>
            <slow>X</slow>
        </axis_order>
        <statistics>
            <minimum>-4.349026</minimum>
            <maximum>6.6047854</maximum>
            <average>-0.043197606</average>
            <std>0.9574159</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">0.7802778</x>
            <y units="Å">0.7802778</y>
            <z units="Å">0.7916667</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>1.0</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-45428::::</label>
        <annotation_details>2mfo-fc map for MP20</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <initial_model>
                    <chain>
                        <source_name>AlphaFold</source_name>
                        <initial_model_type>in silico model</initial_model_type>
                    </chain>
                    <details>Initially truncated to Poly-A chain</details>
                </initial_model>
                <refinement_protocol>OTHER</refinement_protocol>
                <refinement_space>RECIPROCAL</refinement_space>
                <overall_bvalue>88.549999999999997</overall_bvalue>
            </modelling>
        </modelling_list>
    </interpretation>
</emd>
