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    <admin>
        <current_status>
            <date>2024-07-17</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2023-12-14</deposition>
            <header_release>2024-07-17</header_release>
            <map_release>2024-07-17</map_release>
            <update>2024-07-17</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)</funding_body>
                <code>P41GM136508</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Department of Defense (DOD, United States)</funding_body>
                <code>HDTRA1-21-1-0004</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 SARS-CoV-2 main protease (MPro/3CLPro) with missing cone eliminated by suspended drop</title>
        <authors_list>
            <author>Bu G</author>
            <author>Gillman C</author>
            <author>Danelius E</author>
            <author>Hattne J</author>
            <author>Nannenga BL</author>
            <author>Gonen T</author>
        </authors_list>
        <keywords>Cysteine Protease, Viral Protease, Viral Assembly, VIRAL PROTEIN</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Gillman C</author>
                    <author order="2">Bu G</author>
                    <author order="3">Danelius E</author>
                    <author order="4">Hattne J</author>
                    <author order="5">Nannenga BL</author>
                    <author order="6">Gonen T</author>
                    <title>Eliminating the missing cone challenge through innovative approaches.</title>
                    <journal_abbreviation>J Struct Biol X</journal_abbreviation>
                    <country>NE</country>
                    <volume>9</volume>
                    <first_page>100102</first_page>
                    <last_page>100102</last_page>
                    <year>2024</year>
                    <external_references type="PUBMED">38962493</external_references>
                    <external_references type="DOI">doi:10.1016/j.yjsbx.2024.100102</external_references>
                    <external_references type="ISSN">2590-1524</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>8vd7</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>SARS-CoV-2 main protease (Mpro)</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>SARS-CoV-2 main protease (Mpro)</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="2697049">Severe acute respiratory syndrome coronavirus 2</organism>
                </natural_source>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>3C-like proteinase nsp5</name>
                <natural_source database="NCBI">
                    <organism ncbi="2697049">Severe acute respiratory syndrome coronavirus 2</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.033825547</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>SGFRKMAFPSGKVEGCMVQVTCGTTTLNGLWLDDVVYCPRHVICTSEDMLNPNYEDLLIRKSNHNFLVQAGNVQLRVIGH
SMQNCVLKLKVDTANPKTPKYKFVRIQPGQTFSVLACYNGSPSGVYQCAMRPNFTIKGSFLNGSCGSVGFNIDYDCVSFC
YMHHMELPTGVHAGTDLEGNFYGPFVDRQTAQAAGTDTTITVNVLAWLYAAVINGDRWFLNRFTTTLNDFNLVAMKYNYE
PLTQDHVDILGPLSAQTGIAVLDMCASLKELLQNGMNGRTILGSALLEDEFTPFDVVRQCSGVTFQ</string>
                    <external_references type="UNIPROTKB">P0DTD1</external_references>
                </sequence>
                <ec_number>3.4.22.69</ec_number>
            </protein_or_peptide>
            <ligand macromolecule_id="2">
                <name>CHLORIDE ION</name>
                <molecular_weight>
                    <theoretical units="MDa">3.5453e-05</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <formula>CL</formula>
            </ligand>
            <ligand macromolecule_id="3">
                <name>water</name>
                <molecular_weight>
                    <theoretical units="MDa">1.8015e-05</theoretical>
                </molecular_weight>
                <number_of_copies>6</number_of_copies>
                <formula>HOH</formula>
            </ligand>
        </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>6.5</ph>
                        <details>0.1 M MES pH 6.5, 20% PEG 3350, 5% DMSO.</details>
                    </buffer>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">95</chamber_humidity>
                        <chamber_temperature units="K">293</chamber_temperature>
                    </vitrification>
                </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>
                    <nominal_defocus_min units="µm">0.0</nominal_defocus_min>
                    <nominal_defocus_max units="µm">0.0</nominal_defocus_max>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <temperature>
                        <temperature_min units="K">75.0</temperature_min>
                        <temperature_max units="K">85.0</temperature_max>
                    </temperature>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>FEI FALCON IV (4k x 4k)</film_or_detector_model>
                            <number_diffraction_images>420</number_diffraction_images>
                            <average_exposure_time units="s">1.0</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">0.0025</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                    <camera_length units="mm">2480</camera_length>
                    <tilt_list>
                        <angle>-40.0</angle>
                        <angle>70.0</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">2.15</resolution>
                    <resolution_method>DIFFRACTION PATTERN/LAYERLINES</resolution_method>
                </final_reconstruction>
                <crystallography_statistics>
                    <number_intensities_measured>123734</number_intensities_measured>
                    <number_structure_factors>14825</number_structure_factors>
                    <fourier_space_coverage>95.5</fourier_space_coverage>
                    <r_merge>25.600000000000001</r_merge>
                    <overall_phase_residual>0.0</overall_phase_residual>
                    <phase_error_rejection_criteria>none</phase_error_rejection_criteria>
                    <high_resolution units="Å">2.15</high_resolution>
                    <shell_list>
                        <shell shell_id="1">
                            <high_resolution units="Å">2.15</high_resolution>
                            <low_resolution units="Å">2.32</low_resolution>
                            <number_structure_factors>2652</number_structure_factors>
                            <phase_residual>45.030000000000001</phase_residual>
                            <fourier_space_coverage>90.099999999999994</fourier_space_coverage>
                            <multiplicity>4.48</multiplicity>
                        </shell>
                        <shell shell_id="2">
                            <high_resolution units="Å">2.32</high_resolution>
                            <low_resolution units="Å">2.55</low_resolution>
                            <number_structure_factors>2680</number_structure_factors>
                            <phase_residual>38.219999999999999</phase_residual>
                            <fourier_space_coverage>91.900000000000006</fourier_space_coverage>
                            <multiplicity>8.880000000000001</multiplicity>
                        </shell>
                        <shell shell_id="3">
                            <high_resolution units="Å">2.55</high_resolution>
                            <low_resolution units="Å">2.92</low_resolution>
                            <number_structure_factors>2832</number_structure_factors>
                            <phase_residual>38.439999999999998</phase_residual>
                            <fourier_space_coverage>96.400000000000006</fourier_space_coverage>
                            <multiplicity>10.25</multiplicity>
                        </shell>
                        <shell shell_id="4">
                            <high_resolution units="Å">2.92</high_resolution>
                            <low_resolution units="Å">3.67</low_resolution>
                            <number_structure_factors>2922</number_structure_factors>
                            <phase_residual>26.5</phase_residual>
                            <fourier_space_coverage>99.799999999999997</fourier_space_coverage>
                            <multiplicity>10.26</multiplicity>
                        </shell>
                        <shell shell_id="5">
                            <high_resolution units="Å">3.67</high_resolution>
                            <low_resolution units="Å">44.53</low_resolution>
                            <number_structure_factors>2984</number_structure_factors>
                            <phase_residual>16.010000000000002</phase_residual>
                            <fourier_space_coverage>99.200000000000003</fourier_space_coverage>
                            <multiplicity>9.67</multiplicity>
                        </shell>
                    </shell_list>
                </crystallography_statistics>
            </crystallography_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="3198">
        <file>emd_43144.map.gz</file>
        <symmetry>
            <space_group>5</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>100</col>
            <row>72</row>
            <sec>111</sec>
        </dimensions>
        <origin>
            <col>-42</col>
            <row>-17</row>
            <sec>-53</sec>
        </origin>
        <spacing>
            <x>162</x>
            <y>80</y>
            <z>64</z>
        </spacing>
        <cell>
            <a units="Å">115.506</a>
            <b units="Å">55.52</b>
            <c units="Å">45.376</c>
            <alpha units="deg">90.0</alpha>
            <beta units="deg">101.074</beta>
            <gamma units="deg">90.0</gamma>
        </cell>
        <axis_order>
            <fast>Z</fast>
            <medium>X</medium>
            <slow>Y</slow>
        </axis_order>
        <statistics>
            <minimum>-0.23023641</minimum>
            <maximum>0.51170635</maximum>
            <average>-0.000029205135</average>
            <std>0.07864179</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">0.713</x>
            <y units="Å">0.694</y>
            <z units="Å">0.709</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.11796</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-43144::::</label>
        <annotation_details>1.5 sigma</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <refinement_protocol>OTHER</refinement_protocol>
                <target_criteria>Rwork/Rfree gap of less than 5%</target_criteria>
            </modelling>
        </modelling_list>
    </interpretation>
</emd>
