<emd emdb_id="EMD-2814" 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>PDBe</processing_site>
        </current_status>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2014-11-07</deposition>
            <header_release>2014-12-24</header_release>
            <map_release>2014-12-31</map_release>
            <update>2016-02-17</update>
        </key_dates>
        <title>Electron cryotomography of the FtsZ ring in Caulobacter crescentus.</title>
        <authors_list>
            <author>Szwedziak P</author>
            <author>Wang Q</author>
            <author>Bharat TAM</author>
            <author>Tsim M</author>
            <author>Lowe J</author>
        </authors_list>
        <keywords>FtsZ, divisome, bacterial cell division, cytokinesis</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Szwedziak P</author>
                    <author order="2">Wang Q</author>
                    <author order="3">Bharat TAM</author>
                    <author order="4">Tsim M</author>
                    <author order="5">Lowe J</author>
                    <title>Architecture of the ring formed by the tubulin homologue FtsZ in bacterial cell division.</title>
                    <journal>ELIFE</journal>
                    <volume>3</volume>
                    <first_page>e04601</first_page>
                    <last_page>e04601</last_page>
                    <year>2014</year>
                    <external_references type="PUBMED">25490152</external_references>
                    <external_references type="DOI">doi:10.7554/eLife.04601</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
    </crossreferences>
    <sample>
        <name>Caulobacter crescentus CB15N grown in M2G medium.</name>
        <supramolecule_list>
            <sample_supramolecule supramolecule_id="1000">
                <name>Caulobacter crescentus CB15N grown in M2G medium.</name>
                <details>Dividing Caulobacter crescentus CB15N grown in M2G medium.</details>
                <number_unique_components>1</number_unique_components>
            </sample_supramolecule>
            <organelle_or_cellular_component_supramolecule supramolecule_id="1">
                <name>Caulobacter crescentus</name>
                <details>Cells were grown to mid-log phase, mixed with 10 nm protein A gold.</details>
                <recombinant_exp_flag>false</recombinant_exp_flag>
                <natural_source database="NCBI">
                    <organism ncbi="155892">Caulobacter vibrioides</organism>
                    <strain>CB15N</strain>
                    <cell>Bacterial</cell>
                </natural_source>
                <recombinant_expression database="NCBI" />
            </organelle_or_cellular_component_supramolecule>
        </supramolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>tomography</method>
            <aggregation_state>cell</aggregation_state>
            <specimen_preparation_list>
                <tomography_preparation preparation_id="1">
                    <buffer>
                        <details>M2G medium</details>
                    </buffer>
                    <grid>
                        <details>Quantifoil R3.5/1 300 mesh Cu/Rh holey carbon grid</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                        <method>2.5 s blot on Whatmann 1 filter paper.</method>
                    </vitrification>
                </tomography_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <tomography_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>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_defocus_min units="&#181;m">-10.0</nominal_defocus_min>
                    <nominal_defocus_max units="&#181;m">-10.0</nominal_defocus_max>
                    <nominal_magnification>26000.0</nominal_magnification>
                    <calibrated_magnification>26000.0</calibrated_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <alignment_procedure>
                        <legacy>
                            <astigmatism>Visualisation of power spectrum.</astigmatism>
                        </legacy>
                    </alignment_procedure>
                    <specialist_optics>
                        <energy_filter>
                            <name>Gatan Quantum</name>
                            <lower_energy_threshold units="eV">0.0</lower_energy_threshold>
                            <upper_energy_threshold units="eV">20.0</upper_energy_threshold>
                        </energy_filter>
                    </specialist_optics>
                    <date>2014-07-31</date>
                    <image_recording_list>
                        <image_recording>
                            <film_or_detector_model category="CCD">GATAN K2 (4k x 4k)</film_or_detector_model>
                            <number_real_images>121</number_real_images>
                            <average_electron_dose_per_image units="e/&#8491;^2">150</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                    <tilt_series>
                        <axis1>
                            <min_angle units="deg">0</min_angle>
                            <max_angle units="deg">60</max_angle>
                            <angle_increment units="deg">1</angle_increment>
                        </axis1>
                    </tilt_series>
                </tomography_microscopy>
            </microscopy_list>
            <tomography_processing image_processing_id="1">
                <details>Tilt series data was aligned using IMOD and reconstruction was carried out using tomo3D.</details>
                <final_reconstruction>
                    <algorithm>OTHER</algorithm>
                    <software_list>
                        <software>
                            <name>IMOD, tomo3D</name>
                        </software>
                    </software_list>
                    <number_images_used>121</number_images_used>
                </final_reconstruction>
            </tomography_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="388385">
        <file>emd_2814.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>462</col>
            <row>732</row>
            <sec>294</sec>
        </dimensions>
        <origin>
            <col>-437</col>
            <row>-120</row>
            <sec>407</sec>
        </origin>
        <spacing>
            <x>732</x>
            <y>462</y>
            <z>294</z>
        </spacing>
        <cell>
            <a units="&#8491;">8306.76</a>
            <b units="&#8491;">13161.359</b>
            <c units="&#8491;">5286.1196</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>-4.76493883</minimum>
            <maximum>2.89649415</maximum>
            <average>0.08586969</average>
            <std>0.14056909</std>
        </statistics>
        <pixel_spacing>
            <x units="&#8491;">17.98</x>
            <y units="&#8491;">17.98</y>
            <z units="&#8491;">17.98</z>
        </pixel_spacing>
        <annotation_details>Tomogram of dividing Caulobacter crescentus CB15N grown in M2G medium.</annotation_details>
        <details>::::EMDATABANK.org::::EMD-2814::::</details>
    </map>
</emd>