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        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2017-05-24</deposition>
            <header_release>2017-06-14</header_release>
            <map_release>2017-07-12</map_release>
            <update>2025-04-09</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>AI114902</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Canadian Institutes of Health Research (CIHR)</funding_body>
                <code>MOP125959</code>
                <country>Canada</country>
            </grant_reference>
            <grant_reference>
                <funding_body>French National Research Agency</funding_body>
                <code>ANR14CE14001002</code>
                <country>France</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Fondation pour la Recherche Medicale</funding_body>
                <country>France</country>
            </grant_reference>
        </grant_support>
        <title>Cryo-EM reconstruction of Neisseria gonorrhoeae Type IV pilus</title>
        <authors_list>
            <author>Wang F</author>
            <author>Orlova A</author>
        </authors_list>
        <keywords>Melted helix, type IV pili, PROTEIN FIBRIL</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Wang F</author>
                    <author order="2">Coureuil M</author>
                    <author order="3">Osinski T</author>
                    <author order="4">Orlova A</author>
                    <author order="5">Altindal T</author>
                    <author order="6">Gesbert G</author>
                    <author order="7">Nassif X</author>
                    <author order="8">Egelman EH</author>
                    <author order="9">Craig L</author>
                    <title>Cryoelectron Microscopy Reconstructions of the Pseudomonas aeruginosa and Neisseria gonorrhoeae Type IV Pili at Sub-nanometer Resolution.</title>
                    <journal_abbreviation>Structure</journal_abbreviation>
                    <country>UK</country>
                    <volume>25</volume>
                    <first_page>1423</first_page>
                    <last_page>1435.e4</last_page>
                    <year>2017</year>
                    <external_references type="PUBMED">28877506</external_references>
                    <external_references type="DOI">doi:10.1016/j.str.2017.07.016</external_references>
                    <external_references type="ISSN">1878-4186</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-8740</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
                <details>Cryo-EM reconstruction of PAK pilus from Pseudomonas aeruginosa</details>
            </emdb_reference>
        </emdb_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>5vxx</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Neisseria gonorrhoeae Type IV pilin filament</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Neisseria gonorrhoeae Type IV pilin filament</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="485">Neisseria gonorrhoeae</organism>
                    <strain>C30</strain>
                </natural_source>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Fimbrial protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="485">Neisseria gonorrhoeae</organism>
                    <strain>C30</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.017196467</theoretical>
                </molecular_weight>
                <number_of_copies>21</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>FTLIELMIVIAIVGILAAVALPAYQDYTARAQVSEAILLAEGQKSAVTEYYLNHGKWPENNTSAGVASSPTDIKGKYVKE
VEVKNGVVTATMLSSGVNNEIKGKKLSLWARRENGSVKWFCGQPVTRTDDDTVADAKDGKEIDTKHLPSTCRDNFDAK</string>
                    <external_references type="UNIPROTKB">P02974</external_references>
                </sequence>
            </protein_or_peptide>
            <ligand macromolecule_id="3">
                <name>PHOSPHORIC ACID MONO-(2-AMINO-ETHYL) ESTER</name>
                <molecular_weight>
                    <theoretical units="MDa">0.00014106299999999997</theoretical>
                </molecular_weight>
                <number_of_copies>21</number_of_copies>
                <formula>OPE</formula>
            </ligand>
        </macromolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>helical</method>
            <aggregation_state>filament</aggregation_state>
            <specimen_preparation_list>
                <helical_preparation preparation_id="1">
                    <concentration units="mg/mL">0.1</concentration>
                    <buffer>
                        <ph>7.4</ph>
                        <details>PBS buffer</details>
                    </buffer>
                    <grid>
                        <pretreatment>
                            <type>PLASMA CLEANING</type>
                        </pretreatment>
                        <details>unspecified</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">90</chamber_humidity>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                    </vitrification>
                </helical_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <helical_microscopy microscopy_id="1">
                    <microscope>FEI TITAN 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>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>FEI FALCON II (4k x 4k)</film_or_detector_model>
                            <detector_mode>INTEGRATING</detector_mode>
                            <digitization_details/>
                            <average_exposure_time units="s">2.0</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">20.0</average_electron_dose_per_image>
                            <details>Images were stored containing seven parts, where each part represented a set of frames corresponding to a dose of ~20 electrons per Angstrom^2. The full dose image stack was used for the estimation of the CTF as well as for boxing filaments. Only the first two parts were used for the reconstruction (~5 electrons per Angstrom^2).</details>
                        </image_recording>
                    </image_recording_list>
                </helical_microscopy>
            </microscopy_list>
            <helical_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <final_reconstruction>
                    <applied_symmetry>
                        <helical_parameters>
                            <delta_z units="Å">10.1</delta_z>
                            <delta_phi units="deg">100.8</delta_phi>
                            <axial_symmetry>C1</axial_symmetry>
                        </helical_parameters>
                    </applied_symmetry>
                    <resolution units="Å" res_type="BY AUTHOR">5.1</resolution>
                    <resolution_method>OTHER</resolution_method>
                    <software_list>
                        <software>
                            <name>SPIDER</name>
                        </software>
                    </software_list>
                    <details>model-map FSC 0.38 cut-off</details>
                    <number_images_used>9855</number_images_used>
                </final_reconstruction>
                <startup_model type_of_model="NONE">
                    <details>featureless cylinder</details>
                </startup_model>
                <final_angle_assignment>
                    <type>NOT APPLICABLE</type>
                    <software_list>
                        <software>
                            <name>SPIDER</name>
                        </software>
                    </software_list>
                </final_angle_assignment>
            </helical_processing>
        </structure_determination>
    </structure_determination_list>
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        <file>emd_8739.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>100</col>
            <row>100</row>
            <sec>800</sec>
        </dimensions>
        <origin>
            <col>-50</col>
            <row>-50</row>
            <sec>-400</sec>
        </origin>
        <spacing>
            <x>100</x>
            <y>100</y>
            <z>800</z>
        </spacing>
        <cell>
            <a units="Å">104.99999</a>
            <b units="Å">104.99999</b>
            <c units="Å">839.99994</c>
            <alpha units="deg">90.0</alpha>
            <beta units="deg">90.0</beta>
            <gamma units="deg">90.0</gamma>
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            <fast>X</fast>
            <medium>Y</medium>
            <slow>Z</slow>
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            <minimum>-0.4125803</minimum>
            <maximum>1.3121406</maximum>
            <average>0.06006443</average>
            <std>0.16992228</std>
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        <pixel_spacing>
            <x units="Å">1.05</x>
            <y units="Å">1.05</y>
            <z units="Å">1.05</z>
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                <level>0.7</level>
                <source>EMDB</source>
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        <label>::::EMDATABANK.org::::EMD-8739::::</label>
        <annotation_details>Neisseria gonorrhoeae Type IV pilus</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <refinement_space>REAL</refinement_space>
            </modelling>
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