<emd emdb_id="EMD-5438" 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>2012-06-24</deposition>
            <header_release>2012-06-29</header_release>
            <map_release>2012-06-29</map_release>
            <update>2012-12-19</update>
        </key_dates>
        <title>3D reconstruction of a self-assembling designed oligomer with octahedral symmetry</title>
        <authors_list>
            <author>Vollmar BS</author>
            <author>King NP</author>
            <author>Baker D</author>
            <author>Gonen T</author>
        </authors_list>
        <keywords>octahedral symmetry, designed</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">King NP</author>
                    <author order="2">Sheffler W</author>
                    <author order="3">Sawaya MR</author>
                    <author order="4">Vollmar BS</author>
                    <author order="5">Sumida JP</author>
                    <author order="6">Andre I</author>
                    <author order="7">Gonen T</author>
                    <author order="8">Yeates TO</author>
                    <author order="9">Baker D</author>
                    <title>Computational design of self-assembling protein nanomaterials with atomic level accuracy.</title>
                    <journal>SCIENCE</journal>
                    <volume>336</volume>
                    <first_page>1171</first_page>
                    <last_page>1174</last_page>
                    <year>2012</year>
                    <external_references type="PUBMED">22654060</external_references>
                    <external_references type="DOI">doi:10.1126/science.1219364</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
    </crossreferences>
    <sample>
        <name>Designed protein oligomer with octahedral symmetry. The model for the design is PduT from Salmonella enterica with the following mutations: K15A, C38S, M67L, N148A, N149L, E156S, E160A, K161Y, R167A, V169L</name>
        <supramolecule_list>
            <sample_supramolecule supramolecule_id="1000">
                <name>Designed protein oligomer with octahedral symmetry. The model for the design is PduT from Salmonella enterica with the following mutations: K15A, C38S, M67L, N148A, N149L, E156S, E160A, K161Y, R167A, V169L</name>
                <details>Monodisperse sample</details>
                <oligomeric_state>24</oligomeric_state>
                <number_unique_components>1</number_unique_components>
                <molecular_weight>
                    <theoretical units="MDa">0.48</theoretical>
                </molecular_weight>
            </sample_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Propanediol utilization polyhedral body protein PduT</name>
                <natural_source database="NCBI">
                    <organism ncbi="28901">Salmonella enterica</organism>
                </natural_source>
                <details>Mutations: K15A, C38S, M67L, N148A, N149L, E156S, E160A, K161Y, R167A, V169L</details>
                <number_of_copies>24</number_of_copies>
                <recombinant_exp_flag>true</recombinant_exp_flag>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                    <recombinant_plasmid>pET29b</recombinant_plasmid>
                </recombinant_expression>
                <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">0.3</concentration>
                    <buffer>
                        <ph>8.0</ph>
                        <details>25 mM Tris, pH 8.0, 150 mM NaCl, 1 mM DTT</details>
                    </buffer>
                    <grid>
                        <details>Quantifoil R1.2/1.3 holey carbon 400 mesh copper grids</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <instrument>FEI VITROBOT MARK III</instrument>
                        <method>Blotted with filter paper and plunged into liquid ethane.</method>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>FEI TECNAI F20</microscope>
                    <illumination_mode>SPOT SCAN</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">2.12</nominal_cs>
                    <nominal_defocus_min units="&#181;m">1.0</nominal_defocus_min>
                    <nominal_defocus_max units="&#181;m">2.0</nominal_defocus_max>
                    <nominal_magnification>100000.0</nominal_magnification>
                    <calibrated_magnification>217096.0</calibrated_magnification>
                    <specimen_holder_model>GATAN LIQUID NITROGEN</specimen_holder_model>
                    <date>2011-07-12</date>
                    <image_recording_list>
                        <image_recording>
                            <film_or_detector_model category="CCD">TVIPS TEMCAM-F816 (8k x 8k)</film_or_detector_model>
                            <number_real_images>565</number_real_images>
                        </image_recording>
                    </image_recording_list>
                    <tilt_angle_min>0</tilt_angle_min>
                    <tilt_angle_max>0</tilt_angle_max>
                </single_particle_microscopy>
            </microscopy_list>
            <singleparticle_processing image_processing_id="1">
                <details>Particles were selected using the automatic selection program Electron Micrograph Utility (cryoem.ucsf.edu).</details>
                <ctf_correction>
                    <details>CTFFIND3</details>
                </ctf_correction>
                <final_reconstruction>
                    <resolution res_type="BY AUTHOR" units="&#8491;">20.0</resolution>
                    <resolution_method>FSC 0.5 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>FREALIGN</name>
                        </software>
                    </software_list>
                    <details>Reconstruction was calculated based on 2x binned images yielding a pixel size of 1.474 A/pixel.</details>
                    <number_images_used>42025</number_images_used>
                </final_reconstruction>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="6751">
        <file>emd_5438.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>120</col>
            <row>120</row>
            <sec>120</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>120</x>
            <y>120</y>
            <z>120</z>
        </spacing>
        <cell>
            <a units="&#8491;">176.88</a>
            <b units="&#8491;">176.88</b>
            <c units="&#8491;">176.88</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>-2.47524214</minimum>
            <maximum>4.30226564</maximum>
            <average>-0.00000002</average>
            <std>1.0</std>
        </statistics>
        <pixel_spacing>
            <x units="&#8491;">1.474</x>
            <y units="&#8491;">1.474</y>
            <z units="&#8491;">1.474</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>1.8</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <annotation_details>Reconstruction of designed self-assembling protein oligomer with octahedral symmetry</annotation_details>
        <details>::::EMDATABANK.org::::EMD-5438::::</details>
    </map>
</emd>