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    <admin>
        <current_status>
            <date>2024-08-14</date>
            <code>REL</code>
            <processing_site>PDBe</processing_site>
        </current_status>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2024-01-25</deposition>
            <header_release>2024-06-19</header_release>
            <map_release>2024-06-19</map_release>
            <update>2024-08-14</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>Wellcome Trust</funding_body>
                <code>098302</code>
                <country>United Kingdom</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Wellcome Trust</funding_body>
                <code>217089</code>
                <country>United Kingdom</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Wellcome Trust</funding_body>
                <code>202679/Z/16/Z</code>
                <country>United Kingdom</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Wellcome Trust</funding_body>
                <code>206166/Z/17/Z</code>
                <country>United Kingdom</country>
            </grant_reference>
        </grant_support>
        <title>Stalk-Arches-IMC at 4.33A - Refinement without symmetry of the Stalk-Arches-IMC from the fully-assembled R388 type IV secretion.</title>
        <authors_list>
            <author>Mace K</author>
            <author>Waksman G</author>
        </authors_list>
        <keywords>type IV secretion system type 4 secretion system T4SS Arches Stalk inner membrane complex IMC R388 plasmid conjugation bacterial secretion secretion secretion system protein complex VirB3 VirB4 VirB5 VirB6 VirB8 VirB10 TrwM TrwK TrwJ TrwI TrwG TrwE, MEMBRANE PROTEIN</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Mace K</author>
                    <author order="2">Waksman G</author>
                    <title>Cryo-EM structure of a conjugative type IV secretion system suggests a molecular switch regulating pilus biogenesis.</title>
                    <journal_abbreviation>Embo J.</journal_abbreviation>
                    <country>UK</country>
                    <volume>43</volume>
                    <first_page>3287</first_page>
                    <last_page>3306</last_page>
                    <year>2024</year>
                    <external_references type="PUBMED">38886579</external_references>
                    <external_references type="DOI">doi:10.1038/s44318-024-00135-z</external_references>
                    <external_references type="ISSN">1460-2075</external_references>
                    <external_references type="CSD">0897</external_references>
                    <external_references type="ASTM">EMJODG</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>8rtd</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Stalk-Arches-IMC complex from the fully-assembled R388 type IV secretion system</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Stalk-Arches-IMC complex from the fully-assembled R388 type IV secretion system</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>
                        <macromolecule_id>4</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>5</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>6</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="562">Escherichia coli</organism>
                </natural_source>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>TrwJ protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="562">Escherichia coli</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.025190460999999997</theoretical>
                </molecular_weight>
                <details>Sequence from conjugative plasmid R388</details>
                <number_of_copies>5</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MKKLVMTAAVAAILGAASPVMAQGIPVFDGTRALDFVQQFARMKEQLDTAKDQLAEAQRMYEAVTGGRGLGDLMRNAQLR
EYLPDDLRTVYDSANGGGYSGISGSINDILRDERLNGSVADMRRSIEERSRTAAATDKAVGLRAYEGAQQRLAQIEGLMD
EISRTQDQKAIEELQARIAGEQAAIQNETTKLQMIAQLRQAEQALISEQRRERNMRILSSGNQGMPTIQ</string>
                    <external_references type="UNIPROTKB">A8R752</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>TrwG protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="562">Escherichia coli</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.025799993999999996</theoretical>
                </molecular_weight>
                <details>Sequence from conjugative plasmid R388</details>
                <number_of_copies>12</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MSKKQPKPVKAEQLKSYYEESRGLERDLIGEFVKSRKTAWRVATASGLFGLLGMVCGIVGFSQPAPAPLVLRVDNATGAV
DVVTTLREHESSYGEVVDTYWLNQYVLNREAYDYNTIQMNYDTTALLSAPAVQQDYYKLFDGSNARDRVLGNKARITVRV
RSIQPNGRGQATVRFTTQQHNSNGTVEAPQHQIATIGYTYIGAPMRSSDRLLNPLGFQVTSYRADPEILNN</string>
                    <external_references type="UNIPROTKB">A8R756</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="3">
                <name>TrwE protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="562">Escherichia coli</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.042443785000000005</theoretical>
                </molecular_weight>
                <details>Sequence from conjugative plasmid R388</details>
                <number_of_copies>3</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MFGRKKGDVIDAGAELERAEQERIEGEYGASELASERRPHTPGARTLLMVLLCVIAVVLVTLSYKAYKVRGVVEDDDAQP
QQVVRQVIPGYTPRPIRPEPENVPEPPQPTTSVPAIQPAPVTQPVRPQPTGPREKTPYELARERMLRSGLTAGSGGGEDL
PRPQGGDVPAGGLMGGGGGGGELAEKLQPMRLSGSSAGRLGNRDMLITQGTQLDCVLETRLVTTQPGMTTCHLTRDVYST
SGRVVLLDRGSKVVGFYQGGLRQGQARIFVQWSRIETPSGVVINLDSPGTGPLGEAGLGGWIDRHFWERFGGAIMISLIG
DLGDWASRQGSRQGDNSIQFSNTANGVESAAAEALRNSINIPPTLYKNQGERVNILVARDLDFSDVYSLESIPTK</string>
                    <external_references type="UNIPROTKB">A8R758</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="4">
                <name>TrwI protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="562">Escherichia coli</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.035324171999999994</theoretical>
                </molecular_weight>
                <details>Sequence from conjugative plasmid R388</details>
                <number_of_copies>5</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MAFELFTPLFNKIDQTTATYVTDISSRAIAAITPVVSVGLTLGFITYGWLIIRGAVEMPVAEFLNRCLRIGIIVSIALAG
GLYQGEIANAITTVPDELASALLGNPTQGASAAALVDQSAQQGFDRASEAFEEAGFFSSDGLLYGLFGIIILLATGLLAA
IGGAFLLLAKIALALLAGLGPLFILALIWQPTHRFFDQWAQQVLNYGLLIVLFAAVFGLLMQIFGSYMADLRFDGAQNVA
YAIGGSVILSIVSIVLLMQLPSIASGLAGGIGLGYMWELRSMRSGAGAAMRGGRAMARGARAAPGAARGAAVGAANMAKT
VATGGAGVARAAAGYFRGRKAG</string>
                    <external_references type="UNIPROTKB">A8R754</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="5">
                <name>TrwM protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="562">Escherichia coli</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.012292584999999998</theoretical>
                </molecular_weight>
                <details>Sequence from conjugative plasmid R388</details>
                <number_of_copies>3</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MKPPQQQHEAFPLFKGATRLPTIWGVPMIPLMAMVMGVAVIALTVSIWWWALVPPLWFIMAQITKNDDKAFRIWWLWIDT
KFRNRNKGFWGASSYSPANYRKRR</string>
                    <external_references type="UNIPROTKB">A8R750</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="6">
                <name>Type IV secretion system protein virB4</name>
                <natural_source database="NCBI">
                    <organism ncbi="562">Escherichia coli</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.09376992999999999</theoretical>
                </molecular_weight>
                <details>Sequence from conjugative plasmid R388</details>
                <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>MGAIESRKLLASETPVGQFIPYSHHVTDTIISTKNAEYLSVWKIDGRSHQSASEADVFQWIRELNNTLRGISSANLSLWT
HIVRRRVYEYPDAEFDNVFCRQLDEKYRESFTGYNLMVNDLYLTVVYRPVSDKVLSFFAKRERETPDQKKHRQESCIKAL
EDINRTLGQSFKRYGAELLSVYEKGGHAFSAPLEFLARLVNGEHIPMPICRDRFSDYMAVNRPMFSKWGEVGELRSLTGL
RRFGMLEIREYDDATEPGQLNVLLESDYEFVLTHSFSVLSRPAAKEYLQRHQKNLIDARDVATDQIEEIDEALNQLISGH
FVMGEHHCTLTVYGETVQQVRDNLAHASAAMLDVAVLPKPVDLALEAGYWAQLPANWQWRPRPAPITSLNFLSFSPFHNF
MSGKPTGNPWGPAVTILKTVSGTPLYFNFHASKEEEDATDKRLLGNTMLIGQSSSGKTVLLGFLLAQAQKFKPTIVAFDK
DRGMEISIRAMGGRYLPLKTGEPSGFNPFQLPPTHANLIFLKQFVKKLAAAGGEVTHRDEEEIDQAITAMMSDSIDKSLR
RLSLLLQFLPNPRSDDMDARPTVHARLVKWCEGGDYGWLFDNPTDALDLSTHQIYGFDITEFLDNPEARTPVMMYLLYRT
ESMIDGRRFMYVFDEFWKPLQDEYFEDLAKNKQKTIRKQNGIFVFATQEPSDALESNIAKTLIQQCATYIFLANPKADYE
DYTQGFKLTDSEFELVRGLGEFSRRFLIKQGDQSALAEMNLGKFRTIVDGETVERDFDDELLVLSGTPDNAEIAESIIAE
VGDDPAVWLPIFLDRVKAERSDV</string>
                    <external_references type="UNIPROTKB">A8R751</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">
                    <buffer>
                        <ph>7.6</ph>
                    </buffer>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>TFS KRIOS</microscope>
                    <illumination_mode>OTHER</illumination_mode>
                    <imaging_mode>OTHER</imaging_mode>
                    <electron_source>FIELD EMISSION GUN</electron_source>
                    <acceleration_voltage units="kV">300</acceleration_voltage>
                    <nominal_defocus_min units="µm">1.5</nominal_defocus_min>
                    <nominal_defocus_max units="µm">3.3000000000000003</nominal_defocus_max>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K3 (6k x 4k)</film_or_detector_model>
                            <average_electron_dose_per_image units="e/Å^2">57.5</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                </single_particle_microscopy>
            </microscopy_list>
            <singleparticle_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <startup_model type_of_model="OTHER"/>
                <final_reconstruction>
                    <resolution units="Å" res_type="BY AUTHOR">4.33</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                        </software>
                    </software_list>
                    <number_images_used>65173</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                </final_angle_assignment>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
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        <file>emd_19488.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>512</sec>
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        <spacing>
            <x>512</x>
            <y>512</y>
            <z>512</z>
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            <a units="Å">546.304</a>
            <b units="Å">546.304</b>
            <c units="Å">546.304</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>
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        <statistics>
            <minimum>-0.71761763</minimum>
            <maximum>1.9973441</maximum>
            <average>0.027171923</average>
            <std>0.09129263</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">1.067</x>
            <y units="Å">1.067</y>
            <z units="Å">1.067</z>
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        <contour_list>
            <contour primary="true">
                <level>0.6</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-19488::::</label>
        <annotation_details>STALK-ARCHES-IMC _ Unsharpened</annotation_details>
    </map>
    <interpretation>
        <segmentation_list>
            <segmentation>
                <file>emd_19488_msk_1.map</file>
            </segmentation>
        </segmentation_list>
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                <dimensions>
                    <col>512</col>
                    <row>512</row>
                    <sec>512</sec>
                </dimensions>
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                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
                </origin>
                <spacing>
                    <x>512</x>
                    <y>512</y>
                    <z>512</z>
                </spacing>
                <cell>
                    <a units="Å">546.304</a>
                    <b units="Å">546.304</b>
                    <c units="Å">546.304</c>
                    <alpha units="deg">90.0</alpha>
                    <beta units="deg">90.0</beta>
                    <gamma units="deg">90.0</gamma>
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                <axis_order>
                    <fast>X</fast>
                    <medium>Y</medium>
                    <slow>Z</slow>
                </axis_order>
                <statistics>
                    <minimum>-0.0018734856</minimum>
                    <maximum>2.435959</maximum>
                    <average>0.0011052235</average>
                    <std>0.02346377</std>
                </statistics>
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                    <x units="Å">1.067</x>
                    <y units="Å">1.067</y>
                    <z units="Å">1.067</z>
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                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-19488::::</label>
                <annotation_details>STALK-ARCHES-IMC _ Sharpened-deepEMhancer</annotation_details>
            </additional_map>
        </additional_map_list>
        <half_map_list>
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                <file>emd_19488_half_map_2.map.gz</file>
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                    <space_group>1</space_group>
                </symmetry>
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                <dimensions>
                    <col>512</col>
                    <row>512</row>
                    <sec>512</sec>
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                <origin>
                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
                </origin>
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                    <x>512</x>
                    <y>512</y>
                    <z>512</z>
                </spacing>
                <cell>
                    <a units="Å">546.304</a>
                    <b units="Å">546.304</b>
                    <c units="Å">546.304</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>-0.9710612</minimum>
                    <maximum>2.3075762</maximum>
                    <average>0.014889093</average>
                    <std>0.13737963</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">1.067</x>
                    <y units="Å">1.067</y>
                    <z units="Å">1.067</z>
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                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
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                <label>::::EMDATABANK.org::::EMD-19488::::</label>
                <annotation_details>Half-A</annotation_details>
            </half_map>
            <half_map format="CCP4" size_kbytes="536871">
                <file>emd_19488_half_map_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>512</sec>
                </dimensions>
                <origin>
                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
                </origin>
                <spacing>
                    <x>512</x>
                    <y>512</y>
                    <z>512</z>
                </spacing>
                <cell>
                    <a units="Å">546.304</a>
                    <b units="Å">546.304</b>
                    <c units="Å">546.304</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>-1.0162228</minimum>
                    <maximum>2.4174962</maximum>
                    <average>0.014896338</average>
                    <std>0.13734172</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">1.067</x>
                    <y units="Å">1.067</y>
                    <z units="Å">1.067</z>
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                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-19488::::</label>
                <annotation_details>Half-B</annotation_details>
            </half_map>
        </half_map_list>
    </interpretation>
</emd>
