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    <admin>
        <current_status>
            <date>2024-03-13</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2018-11-06</deposition>
            <header_release>2018-12-05</header_release>
            <map_release>2019-03-13</map_release>
            <update>2024-03-13</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)</funding_body>
                <code>5 R01 AI114975-05</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Department of Energy (DOE, United States)</funding_body>
                <code>DE-FG01-91ER20021</code>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>Cryo-EM structure of the HO BMC shell: Icosahedral reconstruction (main population)</title>
        <authors_list>
            <author>Greber BJ</author>
            <author>Sutter M</author>
        </authors_list>
        <keywords>microcompartment, shell, compartmentalization, BMC fold, STRUCTURAL PROTEIN, VIRUS LIKE PARTICLE</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Greber BJ</author>
                    <author order="2">Sutter M</author>
                    <author order="3">Kerfeld CA</author>
                    <title>The Plasticity of Molecular Interactions Governs Bacterial Microcompartment Shell Assembly.</title>
                    <journal_abbreviation>Structure</journal_abbreviation>
                    <country>UK</country>
                    <volume>27</volume>
                    <first_page>749</first_page>
                    <last_page>763.e4</last_page>
                    <year>2019</year>
                    <external_references type="PUBMED">30833088</external_references>
                    <external_references type="DOI">doi:10.1016/j.str.2019.01.017</external_references>
                    <external_references type="ISSN">0969-2126</external_references>
                    <external_references type="CSD">2005</external_references>
                    <external_references type="ASTM">STRUE6</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-9310</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-9311</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-9307</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-9308</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-9312</emdb_id>
                <relationship>
                    <other>other EM volume</other>
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            </emdb_reference>
            <emdb_reference>
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                <relationship>
                    <other>other EM volume</other>
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                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-9313</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-9315</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
        </emdb_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>6mzx</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Bacterial microcompartment shell from Haliangium ochraceum</name>
        <supramolecule_list>
            <organelle_or_cellular_component_supramolecule supramolecule_id="1">
                <name>Bacterial microcompartment shell from Haliangium ochraceum</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>2</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>3</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="80816">Haliangium ochraceum</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">6.5</theoretical>
                </molecular_weight>
            </organelle_or_cellular_component_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Ethanolamine utilization protein EutN/carboxysome structural protein Ccml</name>
                <natural_source database="NCBI">
                    <organism ncbi="502025">Haliangium ochraceum (strain DSM 14365 / JCM 11303 / SMP-2)</organism>
                    <strain>DSM 14365 / JCM 11303 / SMP-2</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.009866318999999998</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>MVLGKVVGTVVASRKEPRIEGLSLLLVRACDPDGTPTGGAVVCADAVGAGVGEVVLYASGSSARQTEVTNNRPVDATIMA
IVDLVEMGGDVRFRKD</string>
                    <external_references type="UNIPROTKB">D0LHE5</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>Microcompartments protein HO-5815</name>
                <natural_source database="NCBI">
                    <organism ncbi="502025">Haliangium ochraceum (strain DSM 14365 / JCM 11303 / SMP-2)</organism>
                    <strain>DSM 14365 / JCM 11303 / SMP-2</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.010126718</theoretical>
                </molecular_weight>
                <number_of_copies>6</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MADALGMIEVRGFVGMVEAADAMVKAAKVELIGYEKTGGGYVTAVVRGDVAAVKAATEAGQRAAERVGEVVAVHVIPRPH
VNVDAALPLGRTPGMDKSA</string>
                    <external_references type="UNIPROTKB">D0LID5</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="3">
                <name>Microcompartments protein HO-5816</name>
                <natural_source database="NCBI">
                    <organism ncbi="502025">Haliangium ochraceum</organism>
                    <strain>DSM 14365 / JCM 11303 / SMP-2</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.022904136999999998</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MSITLRTYIFLDALQPQLATFIGKTARGFLPVPGQASLWVEIAPGIAINRVTDAALKATKVQPAVQVVERAYGLLEVHHF
DQGEVLAAGSTILDKLEVREEGRLKPQVMTHQIIRAVEAYQTQIINRNSQGMMILPGESLFILETQPAGYAVLAANEAEK
AANVHLVNVTPYGAFGRLYLAGSEAEIDAAAEAAEAAIRSVSGVAQESFRDR</string>
                    <external_references type="UNIPROTKB">D0LID6</external_references>
                </sequence>
            </protein_or_peptide>
        </macromolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>singleParticle</method>
            <aggregation_state>particle</aggregation_state>
            <specimen_preparation_list>
                <single_particle_preparation preparation_id="1">
                    <concentration units="mg/mL">3</concentration>
                    <buffer>
                        <ph>7.4</ph>
                        <component>
                            <concentration units="mM">20.0</concentration>
                            <name>Tris-HCl</name>
                        </component>
                        <component>
                            <concentration units="mM">50.0</concentration>
                            <name>Sodium chloride</name>
                        </component>
                        <component>
                            <concentration units="%">0.01</concentration>
                            <name>NP-40 substitute</name>
                        </component>
                    </buffer>
                    <grid>
                        <model>C-flat-1.2/1.3</model>
                        <material>COPPER</material>
                        <mesh>400</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>HOLEY</film_topology>
                        </support_film>
                        <support_film film_type_id="2">
                            <film_material>CARBON</film_material>
                            <film_topology>CONTINUOUS</film_topology>
                        </support_film>
                        <pretreatment>
                            <type>PLASMA CLEANING</type>
                        </pretreatment>
                        <details>Protochips C-flat 1.2/1.3 holey carbon grids were coated with a thin carbon film and plasma cleaned using a Gatain Solarus.</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">277</chamber_temperature>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                        <details>5-7 sec incubation of the sample on the grid before blotting and plunging. </details>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>FEI TITAN</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>
                    <calibrated_defocus_min units="µm">1.0</calibrated_defocus_min>
                    <calibrated_defocus_max units="µm">3.5</calibrated_defocus_max>
                    <calibrated_magnification>48543.0</calibrated_magnification>
                    <specimen_holder_model>GATAN 626 SINGLE TILT LIQUID NITROGEN CRYO TRANSFER HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <alignment_procedure>
                        <coma_free/>
                    </alignment_procedure>
                    <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>
                                <dimensions>
                                    <width units="pixel">3838</width>
                                    <height units="pixel">3710</height>
                                </dimensions>
                                <frames_per_image>1-30</frames_per_image>
                            </digitization_details>
                            <number_grids_imaged>1</number_grids_imaged>
                            <number_real_images>928</number_real_images>
                            <average_exposure_time units="s">4.5</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">25.0</average_electron_dose_per_image>
                            <details>928 images retained after inspection for image quality. Frames were aligned and dose weighed using Motioncor2.</details>
                        </image_recording>
                    </image_recording_list>
                </single_particle_microscopy>
            </microscopy_list>
            <singleparticle_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <particle_selection>
                    <number_selected>31800</number_selected>
                    <details>1000 particles were picked manually to generate reference templates for subsequent auto-picking in RELION 1.4.</details>
                </particle_selection>
                <startup_model type_of_model="EMDB MAP">
                    <emdb_id>EMD-8747</emdb_id>
                    <details>The reference was re-scaled and placed in a 512x512x512 voxel box to match the pixel size and appropriate box size for the data.</details>
                </startup_model>
                <final_reconstruction>
                    <number_classes_used>1</number_classes_used>
                    <applied_symmetry>
                        <point_group>I</point_group>
                    </applied_symmetry>
                    <algorithm>FOURIER SPACE</algorithm>
                    <resolution units="Å" res_type="BY AUTHOR">3.0</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>FREALIGN</name>
                            <version>9</version>
                        </software>
                    </software_list>
                    <details>Frequency-limited refinement in FREALIGN, excluding spatial frequencies higher than 3.6 Angstroms to avoid over-fitting. Icosahedral symmetry was applied throughout the refinement procedure.</details>
                    <number_images_used>15779</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>1.4</version>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing/>
                    <software_list>
                        <software>
                            <name>FREALIGN</name>
                            <version>9</version>
                        </software>
                    </software_list>
                    <details>Final refinement in FREALIGN, using defocus refinement and Ewald sphere correction.</details>
                </final_angle_assignment>
                <final_three_d_classification>
                    <number_classes>4</number_classes>
                    <average_number_members_per_class>7950.0</average_number_members_per_class>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>1.4</version>
                        </software>
                    </software_list>
                    <details>Icosahedral symmetry was applied during the classification.</details>
                </final_three_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
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