<emd emdb_id="EMD-5720" version="3.0.1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://github.com/emdb-empiar/emdb-schemas/blob/master/v3/v3_0_1_1/emdb_relaxed.xsd">
    <admin>
        <current_status>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2013-07-16</deposition>
            <header_release>2013-11-13</header_release>
            <map_release>2013-11-13</map_release>
            <update>2013-12-18</update>
        </key_dates>
        <title>Structure of the Yersinia enterocolitica secretin YscC</title>
        <authors_list>
            <author>Kowal J</author>
            <author>Chami M</author>
            <author>Ringler P</author>
            <author>Muller AS</author>
            <author>Kudryashev M</author>
            <author>Castano-Diez D</author>
            <author>Amstutz M</author>
            <author>Cornelis GR</author>
            <author>Stahlberg H</author>
            <author>Engel A</author>
        </authors_list>
        <keywords>type III secretion system, Yersinia enterocolitica, Gram-negative bacteria, YscC, secretin, cryo-electron microscopy, outer membrane</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Kowal J</author>
                    <author order="2">Chami M</author>
                    <author order="3">Ringler P</author>
                    <author order="4">Muller SA</author>
                    <author order="5">Kudryashev M</author>
                    <author order="6">Castano-Diez D</author>
                    <author order="7">Amstutz M</author>
                    <author order="8">Cornelis GR</author>
                    <author order="9">Stahlberg H</author>
                    <author order="10">Engel A</author>
                    <title>Structure of the Dodecameric Yersinia enterocolitica Secretin YscC and Its Trypsin-Resistant Core</title>
                    <journal>STRUCTURE</journal>
                    <volume>21</volume>
                    <first_page>2152</first_page>
                    <last_page>2161</last_page>
                    <year>2013</year>
                    <external_references type="PUBMED">24207124</external_references>
                    <external_references type="DOI">doi:10.1016/j.str.2013.09.012</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-5721</emdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-5722</emdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </emdb_reference>
        </emdb_list>
    </crossreferences>
    <sample>
        <name>YscC secretin from Yersinia enterocolitica</name>
        <supramolecule_list>
            <sample_supramolecule supramolecule_id="1000">
                <name>YscC secretin from Yersinia enterocolitica</name>
                <details>Sample contained detergent DDM</details>
                <oligomeric_state>12</oligomeric_state>
                <number_unique_components>1</number_unique_components>
                <molecular_weight>
                    <experimental units="MDa">0.9</experimental>
                    <theoretical units="MDa">0.768</theoretical>
                    <method>Gel filtration, Superose 6 30/100 GL column</method>
                </molecular_weight>
            </sample_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>YscC secretin</name>
                <natural_source database="NCBI">
                    <organism ncbi="630">Yersinia enterocolitica</organism>
                    <strain>W22703</strain>
                    <synonym_organism>Yersinia</synonym_organism>
                    <cellular_location>outer membrane</cellular_location>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.768</theoretical>
                </molecular_weight>
                <oligomeric_state>Dodecamer</oligomeric_state>
                <recombinant_exp_flag>true</recombinant_exp_flag>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="630">Yersinia enterocolitica</recombinant_organism>
                    <recombinant_strain>W22703</recombinant_strain>
                    <recombinant_plasmid>pMA6, pRS6</recombinant_plasmid>
                </recombinant_expression>
                <sequence>
                    <external_references type="UNIPROTKB">Q01244</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">0.2</concentration>
                    <buffer>
                        <ph>7.8</ph>
                        <details>10 mM Tris-HCl, 100 mM NaCl, 0.1 mM EDTA, 0.04% DDM</details>
                    </buffer>
                    <grid>
                        <details>200 mesh Cu grid, covered with a very thin additional continuous carbon film, glow-discharged</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">95</chamber_humidity>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                        <method>Plunging immediately after blotting.</method>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>FEI/PHILIPS CM200FEG</microscope>
                    <illumination_mode>FLOOD BEAM</illumination_mode>
                    <imaging_mode>BRIGHT FIELD</imaging_mode>
                    <electron_source>FIELD EMISSION GUN</electron_source>
                    <acceleration_voltage units="kV">200</acceleration_voltage>
                    <nominal_cs units="mm">2</nominal_cs>
                    <nominal_defocus_min units="&#181;m">1.0</nominal_defocus_min>
                    <nominal_defocus_max units="&#181;m">3.5</nominal_defocus_max>
                    <nominal_magnification>50000.0</nominal_magnification>
                    <specimen_holder_model>GATAN LIQUID NITROGEN</specimen_holder_model>
                    <date>2010-10-01</date>
                    <image_recording_list>
                        <image_recording>
                            <film_or_detector_model category="FILM">KODAK SO-163 FILM</film_or_detector_model>
                            <digitization_details>
                                <scanner>PRIMESCAN</scanner>
                                <sampling_interval units="&#181;m">5</sampling_interval>
                            </digitization_details>
                            <number_real_images>100</number_real_images>
                            <average_electron_dose_per_image units="e/&#8491;^2">20</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                </single_particle_microscopy>
            </microscopy_list>
            <singleparticle_processing image_processing_id="1">
                <details>Particles were selected using Boxer/EMAN1.9. Image processing was done using EMAN2.</details>
                <ctf_correction>
                    <details>each particle</details>
                </ctf_correction>
                <final_reconstruction>
                    <algorithm>OTHER</algorithm>
                    <resolution res_type="BY AUTHOR" units="&#8491;">15.0</resolution>
                    <resolution_method>FSC 0.5 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>EMAN2</name>
                        </software>
                    </software_list>
                    <details>Mask parameters were optimized to minimize the influence of a flexible N-terminal domain that impaired projection alignment.</details>
                    <number_images_used>35000</number_images_used>
                </final_reconstruction>
                <final_two_d_classification>
                    <number_classes>240</number_classes>
                </final_two_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="12665">
        <file>emd_5720.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>148</col>
            <row>148</row>
            <sec>148</sec>
        </dimensions>
        <origin>
            <col>-74</col>
            <row>-74</row>
            <sec>-74</sec>
        </origin>
        <spacing>
            <x>148</x>
            <y>148</y>
            <z>148</z>
        </spacing>
        <cell>
            <a units="&#8491;">288.6</a>
            <b units="&#8491;">288.6</b>
            <c units="&#8491;">288.6</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>-0.14436568</minimum>
            <maximum>0.11775511</maximum>
            <average>0.0007342</average>
            <std>0.0204073</std>
        </statistics>
        <pixel_spacing>
            <x units="&#8491;">1.95</x>
            <y units="&#8491;">1.95</y>
            <z units="&#8491;">1.95</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.034</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <annotation_details>Reconstruction of YscC secretin</annotation_details>
        <details>::::EMDATABANK.org::::EMD-5720::::</details>
    </map>
    <interpretation>
        <figure_list>
            <figure>
                <file>emd_5720.png</file>
            </figure>
        </figure_list>
    </interpretation>
</emd>