<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" emdb_id="EMD-3641" version="3.0.0.0" xsi:schemaLocation="https://github.com/emdb-empiar/emdb-schemas/blob/master/v3/v3_0_0_0/emdb.xsd">
    <admin>
        <current_status>
            <date>2018-04-25</date>
            <code>REL</code>
            <processing_site>PDBe</processing_site>
        </current_status>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2017-03-20</deposition>
            <header_release>2017-04-19</header_release>
            <map_release>2017-12-20</map_release>
            <update>2018-04-25</update>
        </key_dates>
        <title>Unraveling the self-assembly of Pseudomonas aeruginosa XcpQ secretin periplasmic domain provides new molecular insights into T2SS secreton architecture &amp; dynamics</title>
        <authors_list>
            <author>Douzi B</author>
            <author>Trinh N</author>
            <author>Ball G</author>
            <author>Desmyter A</author>
            <author>Michel-Souzy S</author>
            <author>Barbier P</author>
            <author>Kosta A</author>
            <author>Durand E</author>
            <author>Cambillau C</author>
            <author>Roussel A</author>
            <author>Voulhoux R</author>
        </authors_list>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Douzi B</author>
                    <author order="2">Trinh NTT</author>
                    <author order="3">Michel-Souzy S</author>
                    <author order="4">Desmyter A</author>
                    <author order="5">Ball G</author>
                    <author order="6">Barbier P</author>
                    <author order="7">Kosta A</author>
                    <author order="8">Durand E</author>
                    <author order="9">Forest KT</author>
                    <author order="10">Cambillau C</author>
                    <author order="11">Roussel A</author>
                    <author order="12">Voulhoux R</author>
                    <title>Unraveling the Self-Assembly of the Pseudomonas aeruginosa XcpQ Secretin Periplasmic Domain Provides New Molecular Insights into Type II Secretion System Secreton Architecture and Dynamics.</title>
                    <journal_abbreviation>MBio</journal_abbreviation>
                    <country>US</country>
                    <volume>8</volume>
                    <year>2017</year>
                    <external_references type="PUBMED">29042493</external_references>
                    <external_references type="DOI">doi:10.1128/mBio.01185-17</external_references>
                    <external_references type="ISSN">2150-7511</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-3641</emdb_id>
                <relationship>
                    <other>associated EM volume</other>
                </relationship>
            </emdb_reference>
        </emdb_list>
    </crossreferences>
    <sample>
        <name>Dodecameric complex of the N-terminal domain of the secretin XcpQ from Pseudomonas aeruginosa</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Dodecameric complex of the N-terminal domain of the secretin XcpQ from Pseudomonas aeruginosa</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="287">Pseudomonas aeruginosa</organism>
                </natural_source>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="866768">Escherichia coli 'BL21-Gold(DE3)pLysS AG'</recombinant_organism>
                </recombinant_expression>
                <molecular_weight>
                    <theoretical units="MDa">0.322</theoretical>
                </molecular_weight>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Secretin N terminal domain</name>
                <natural_source database="NCBI">
                    <organism ncbi="287">Pseudomonas aeruginosa</organism>
                </natural_source>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="511693">Escherichia coli BL21</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>E N S G G N A F V P A G N Q Q E A H W T I N L K D A D I R E F I D Q I S E I T G E T F V V D P R V K G Q V S V V S K A Q L S L S E V Y Q L F L S V M S T H G F T V V A Q G D Q A R I V P N A E A K T E A G G G Q S A P D R L E T R V I Q V Q Q S P V S E L I P L I R P L V P Q Y G H L A A V P S A N A L I I S D R S A N I A R I E D V I R Q L D Q K G S H D Y S V I N L R Y G W V M D A A E V L N N A M S R G Q A K G A A G A Q V I A D A R T N R L I I L G P P Q A R A K L V Q L A Q S L D T P
</string>
                </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">1</concentration>
                    <buffer>
                        <ph>8.</ph>
                        <component>
                            <concentration units="mM">50.0</concentration>
                            <name>Tris-Hcl</name>
                        </component>
                        <component>
                            <concentration units="mM">150.0</concentration>
                            <name>NaCl</name>
                        </component>
                    </buffer>
                    <staining>
                        <type>NEGATIVE</type>
                        <material>Uranyl Acetate</material>
                        <details>The protein was coated on carbon grid for 3 min. The grid were then washed using drop method 3 times and then incubated with Uranyl Acetate 2% for 3 min.</details>
                    </staining>
                    <details>This sample was monodisperse.</details>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>FEI TECNAI 20</microscope>
                    <illumination_mode>FLOOD BEAM</illumination_mode>
                    <imaging_mode>BRIGHT FIELD</imaging_mode>
                    <electron_source>LAB6</electron_source>
                    <acceleration_voltage units="kV">200</acceleration_voltage>
                    <nominal_cs units="mm">2.0</nominal_cs>
                    <alignment_procedure>
                        <basic />
                    </alignment_procedure>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>FEI EAGLE (2k x 2k)</film_or_detector_model>
                            <average_electron_dose_per_image units="e/&#8491;^2">2.0</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>
                <particle_selection>
                    <number_selected>1660</number_selected>
                    <details>negative monitor contrast facilitated particle manual picking (EMAN2)</details>
                </particle_selection>
                <ctf_correction>
                    <software_list>
                        <software>
                            <name>EMAN</name>
                            <version>2.12</version>
                        </software>
                    </software_list>
                </ctf_correction>
                <startup_model type_of_model="OTHER">
                    <details>Initial model created by EMAN based on the best 2D classes</details>
                </startup_model>
                <final_reconstruction>
                    <number_classes_used>15</number_classes_used>
                    <applied_symmetry>
                        <point_group>C6</point_group>
                    </applied_symmetry>
                    <algorithm>BACK PROJECTION</algorithm>
                    <resolution res_type="BY AUTHOR" units="&#8491;">30.8</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>EMAN</name>
                            <version>2.12</version>
                        </software>
                    </software_list>
                    <number_images_used>1660</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>NOT APPLICABLE</type>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>NOT APPLICABLE</type>
                </final_angle_assignment>
                <final_three_d_classification>
                    <number_classes>15</number_classes>
                    <average_number_members_per_class>110.</average_number_members_per_class>
                    <software_list>
                        <software>
                            <name>EMAN</name>
                            <version>2.12</version>
                        </software>
                    </software_list>
                </final_three_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="2049">
        <file>emd_3641.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>80</col>
            <row>80</row>
            <sec>80</sec>
        </dimensions>
        <origin>
            <col>-40</col>
            <row>-40</row>
            <sec>-40</sec>
        </origin>
        <spacing>
            <x>80</x>
            <y>80</y>
            <z>80</z>
        </spacing>
        <cell>
            <a units="&#8491;">352.0</a>
            <b units="&#8491;">352.0</b>
            <c units="&#8491;">352.0</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>-1.0651999</minimum>
            <maximum>3.4696348</maximum>
            <average>0.024306923</average>
            <std>0.21519959</std>
        </statistics>
        <pixel_spacing>
            <x units="&#8491;">4.4</x>
            <y units="&#8491;">4.4</y>
            <z units="&#8491;">4.4</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>1.35</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-3641::::</label>
    </map>
</emd>