<?xml version="1.0" encoding="UTF-8"?>
<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://github.com/emdb-empiar/emdb-schemas/blob/master/v3/v3_0_2_0/emdb.xsd" emdb_id="EMD-20503" version="3.0.2.0">
    <admin>
        <current_status>
            <date>2020-11-25</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2019-07-22</deposition>
            <header_release>2020-03-04</header_release>
            <map_release>2020-03-25</map_release>
            <update>2020-11-25</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)</funding_body>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>Subtomogram average of a purified Leptospira biflexa -fcpB mutant flagellum</title>
        <authors_list>
            <author>Brady MR</author>
            <author>Gibson KH</author>
            <author>Sindelar CV</author>
        </authors_list>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Gibson KH</author>
                    <author order="2">Trajtenberg F</author>
                    <author order="3">Wunder EA</author>
                    <author order="4">Brady MR</author>
                    <author order="5">San Martin F</author>
                    <author order="6">Mechaly A</author>
                    <author order="7">Shang Z</author>
                    <author order="8">Liu J</author>
                    <author order="9">Picardeau M</author>
                    <author order="10">Ko A</author>
                    <author order="11">Buschiazzo A</author>
                    <author order="12">Sindelar CV</author>
                    <title>An asymmetric sheath controls flagellar supercoiling and motility in the leptospira spirochete.</title>
                    <journal_abbreviation>Elife</journal_abbreviation>
                    <country>US</country>
                    <volume>9</volume>
                    <year>2020</year>
                    <external_references type="PUBMED">32157997</external_references>
                    <external_references type="DOI">doi:10.7554/eLife.53672</external_references>
                    <external_references type="ISSN">2050-084X</external_references>
                </journal_citation>
            </primary_citation>
            <secondary_citation>
                <journal_citation published="true">
                    <author order="13">Wunder EA</author>
                    <author order="14">Slamti L</author>
                    <author order="15">Suwondo DN</author>
                    <author order="16">Gibson KH</author>
                    <author order="17">Shang Z</author>
                    <author order="18">Sindelar CV</author>
                    <author order="19">Trajtenberg F</author>
                    <author order="20">Buschiazzo A</author>
                    <author order="21">Ko AI</author>
                    <author order="22">Picardeau M</author>
                    <title>FcpB Is a Surface Filament Protein of the Endoflagellum Required for the Motility of the Spirochete</title>
                    <journal_abbreviation>Front Cell Infect Microbiol</journal_abbreviation>
                    <country>CH</country>
                    <volume>8</volume>
                    <first_page>130</first_page>
                    <year>2018</year>
                    <external_references type="PUBMED">29868490</external_references>
                    <external_references type="DOI">doi:10.3389/fcimb.2018.00130</external_references>
                    <external_references type="ISSN">2235-2988</external_references>
                </journal_citation>
            </secondary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-20503</emdb_id>
                <relationship>
                    <other>associated EM volume</other>
                </relationship>
            </emdb_reference>
        </emdb_list>
    </crossreferences>
    <sample>
        <name>Flagellum</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Flagellum</name>
                <parent>0</parent>
                <details>Purified periplasmic flagella from Leptospira biflexa serovar Patoc -fcpB mutant</details>
                <natural_source database="NCBI">
                    <organism ncbi="145259">Leptospira biflexa serovar Patoc</organism>
                    <cellular_location>Periplasmic space</cellular_location>
                </natural_source>
            </complex_supramolecule>
        </supramolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>subtomogramAveraging</method>
            <aggregation_state>filament</aggregation_state>
            <specimen_preparation_list>
                <subtomogram_averaging_preparation preparation_id="1">
                    <buffer>
                        <ph>6.8</ph>
                        <component>
                            <formula>H2O</formula>
                        </component>
                    </buffer>
                    <grid>
                        <model>C-flat-1.2/1.3</model>
                        <material>COPPER</material>
                        <mesh>200</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>CONTINUOUS</film_topology>
                            <film_thickness units="nm">3.0</film_thickness>
                        </support_film>
                        <support_film film_type_id="2">
                            <film_material>CARBON</film_material>
                            <film_topology>HOLEY</film_topology>
                        </support_film>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                        </pretreatment>
                        <details>The sample was glow-discharged with ArO2 for 6 seconds.</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">291</chamber_temperature>
                        <instrument>FEI VITROBOT MARK III</instrument>
                        <details>Blot time of 6 seconds, blot offset -1mm. </details>
                    </vitrification>
                    <details>Flagella were purified from Leptospira biflexa serovar Patoc according to the method described from Wunder et al. 2016 (Molecular Microbiology). After the final centrifugation, the flagella were resuspended in 0.5 mL H2O, and approximately 0.2% sodium azide was added as a preservative. Flagella were stored at 4 degrees C.</details>
                </subtomogram_averaging_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <subtomogram_averaging_microscopy microscopy_id="1">
                    <microscope>FEI TECNAI F20</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>
                    <c2_aperture_diameter units="µm">50.0</c2_aperture_diameter>
                    <nominal_cs units="mm">1.2</nominal_cs>
                    <nominal_defocus_min units="µm">2.5</nominal_defocus_min>
                    <nominal_magnification>14500.0</nominal_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>
                            <number_grids_imaged>1</number_grids_imaged>
                            <average_exposure_time units="s">1.5</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">8.35</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                </subtomogram_averaging_microscopy>
            </microscopy_list>
            <subtomogram_averaging_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <final_reconstruction>
                    <applied_symmetry>
                        <point_group>C1</point_group>
                    </applied_symmetry>
                    <algorithm>BACK PROJECTION</algorithm>
                    <resolution units="Å" res_type="BY AUTHOR">18.4</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>emClarity</name>
                        </software>
                    </software_list>
                    <details>emClarity was used to generate a final structure from the 10 best tomograms (that contained 14 filaments).</details>
                    <number_subtomograms_used>10</number_subtomograms_used>
                </final_reconstruction>
                <extraction>
                    <number_tomograms>24</number_tomograms>
                    <number_images_used>5917</number_images_used>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                    </software_list>
                </extraction>
                <ctf_correction>
                    <software_list>
                        <software>
                            <name>IMOD</name>
                        </software>
                    </software_list>
                </ctf_correction>
                <final_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                </final_angle_assignment>
            </subtomogram_averaging_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="20001">
        <file>emd_20503.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>171</col>
            <row>171</row>
            <sec>171</sec>
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            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>171</x>
            <y>171</y>
            <z>171</z>
        </spacing>
        <cell>
            <a units="Å">849.86993</a>
            <b units="Å">849.86993</b>
            <c units="Å">849.86993</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>-12.255934</minimum>
            <maximum>18.001131</maximum>
            <average>-0.0000000001</average>
            <std>0.99999994</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">4.97</x>
            <y units="Å">4.97</y>
            <z units="Å">4.97</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>4.01</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-20503::::</label>
        <annotation_details>Map of the Leptospira biflexa purified -fcpB flagellum, determined through subtomogram averaging with emClarity.</annotation_details>
    </map>
    <interpretation>
        <half_map_list>
            <half_map format="CCP4" size_kbytes="20001">
                <file>emd_20503_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>171</col>
                    <row>171</row>
                    <sec>171</sec>
                </dimensions>
                <origin>
                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
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                    <y>171</y>
                    <z>171</z>
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                    <a units="Å">849.86993</a>
                    <b units="Å">849.86993</b>
                    <c units="Å">849.86993</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>-18.039953</minimum>
                    <maximum>18.251925</maximum>
                    <average>0.00000000003</average>
                    <std>0.99999994</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">4.97</x>
                    <y units="Å">4.97</y>
                    <z units="Å">4.97</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-20503::::</label>
                <annotation_details>Half mask of the Leptospira biflexa purified -fcpB flagellum, determined through subtomogram averaging with emClarity.</annotation_details>
            </half_map>
            <half_map format="CCP4" size_kbytes="20001">
                <file>emd_20503_half_map_2.map.gz</file>
                <symmetry>
                    <space_group>1</space_group>
                </symmetry>
                <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
                <dimensions>
                    <col>171</col>
                    <row>171</row>
                    <sec>171</sec>
                </dimensions>
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                    <y>171</y>
                    <z>171</z>
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                <cell>
                    <a units="Å">849.86993</a>
                    <b units="Å">849.86993</b>
                    <c units="Å">849.86993</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>-17.269262</minimum>
                    <maximum>17.786175</maximum>
                    <average>-0.000000000</average>
                    <std>0.99999994</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">4.97</x>
                    <y units="Å">4.97</y>
                    <z units="Å">4.97</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-20503::::</label>
                <annotation_details>Half mask of the Leptospira biflexa purified -fcpB flagellum, determined through subtomogram averaging with emClarity.</annotation_details>
            </half_map>
        </half_map_list>
    </interpretation>
</emd>
