<emd emdb_id="EMD-2415" 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>2013-07-16</deposition>
            <header_release>2013-08-14</header_release>
            <map_release>2013-12-18</map_release>
            <update>2016-02-17</update>
        </key_dates>
        <title>Helical reconstruction of HMPV matrix protein-lipid filaments</title>
        <authors_list>
            <author>Leyrat C</author>
            <author>Renner M</author>
            <author>Harlos K</author>
            <author>Huiskonen JT</author>
            <author>Grimes JM</author>
        </authors_list>
        <keywords>human metapneumovirus, HMPV, matrix</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Leyrat C</author>
                    <author order="2">Renner M</author>
                    <author order="3">Harlos K</author>
                    <author order="4">Huiskonen JT</author>
                    <author order="5">Grimes JM</author>
                    <title>Structure and self-assembly of the calcium binding matrix protein of human metapneumovirus.</title>
                    <journal>STRUCTURE</journal>
                    <volume>22</volume>
                    <first_page>136</first_page>
                    <last_page>148</last_page>
                    <year>2014</year>
                    <external_references type="PUBMED">24316400</external_references>
                    <external_references type="DOI">doi:10.1016/j.str.2013.10.013</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
    </crossreferences>
    <sample>
        <name>Human metapneumovirus matrix protein M bound to DOPC</name>
        <supramolecule_list>
            <sample_supramolecule supramolecule_id="1000">
                <name>Human metapneumovirus matrix protein M bound to DOPC</name>
                <oligomeric_state>helical</oligomeric_state>
                <number_unique_components>2</number_unique_components>
            </sample_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>human metapneumovirus matrix protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="162145">Human metapneumovirus</organism>
                    <strain>NL1-00</strain>
                    <synonym_organism>Human metapneumovirus</synonym_organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.055</theoretical>
                </molecular_weight>
                <details>matrix protein was mixed with DOPC at a final concentration of 0.4 mM</details>
                <oligomeric_state>dimer</oligomeric_state>
                <recombinant_exp_flag>true</recombinant_exp_flag>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                    <recombinant_strain>BL21 Rosetta2</recombinant_strain>
                    <recombinant_plasmid>pOPINS3C</recombinant_plasmid>
                </recombinant_expression>
                <sequence>
                    <external_references type="UNIPROTKB">Q91F56</external_references>
                    <external_references type="GO">GO:0019068</external_references>
                    <external_references type="GO">GO:0019031</external_references>
                    <external_references type="INTERPRO">IPR005056</external_references>
                </sequence>
            </protein_or_peptide>
            <ligand macromolecule_id="2">
                <name synonym="DOPC">1,2-Dioleoyl-sn-glycero-3-phosphocholine</name>
                <natural_source database="NCBI">
                    <organism ncbi="32630">synthetic construct</organism>
                </natural_source>
                <recombinant_exp_flag>false</recombinant_exp_flag>
                <recombinant_expression database="NCBI" />
            </ligand>
        </macromolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>helical</method>
            <aggregation_state>filament</aggregation_state>
            <specimen_preparation_list>
                <helical_preparation preparation_id="1">
                    <concentration units="mg/mL">0.2</concentration>
                    <buffer>
                        <ph>7.5</ph>
                        <details>20 mM Tris, 650 mM NaCl, 1M NDSB-201</details>
                    </buffer>
                    <staining>
                        <type>NEGATIVE</type>
                        <details>Grids with adsorbed protein-lipid mixtures floated on 2% w/v uranyl acetate for 30 seconds</details>
                    </staining>
                    <grid>
                        <details>300 mesh copper grid with formvar carbon film</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>NONE</cryogen_name>
                        <instrument>OTHER</instrument>
                    </vitrification>
                </helical_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <helical_microscopy microscopy_id="1">
                    <microscope>FEI TECNAI F30</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_defocus_min units="&#181;m">0.72</nominal_defocus_min>
                    <nominal_defocus_max units="&#181;m">0.82</nominal_defocus_max>
                    <nominal_magnification>39000.0</nominal_magnification>
                    <calibrated_magnification>48387.0</calibrated_magnification>
                    <specimen_holder_model>SIDE ENTRY, EUCENTRIC</specimen_holder_model>
                    <temperature>
                        <temperature_average units="K">295</temperature_average>
                    </temperature>
                    <date>2013-07-16</date>
                    <image_recording_list>
                        <image_recording>
                            <film_or_detector_model category="CCD">GATAN ULTRASCAN 4000 (4k x 4k)</film_or_detector_model>
                            <digitization_details>
                                <sampling_interval units="&#181;m">15</sampling_interval>
                            </digitization_details>
                            <number_real_images>1</number_real_images>
                            <bits_per_pixel>12.</bits_per_pixel>
                        </image_recording>
                    </image_recording_list>
                </helical_microscopy>
            </microscopy_list>
            <helical_processing image_processing_id="1">
                <details>The reconstruction was calculated using Burnham-Brandeis Helical Package</details>
                <final_reconstruction>
                    <applied_symmetry>
                        <helical_parameters>
                            <delta_z units="&#8491;">5.16</delta_z>
                            <delta_phi units="deg">56.5</delta_phi>
                        </helical_parameters>
                    </applied_symmetry>
                    <algorithm>OTHER</algorithm>
                    <resolution res_type="BY AUTHOR" units="&#8491;">28.0</resolution>
                    <resolution_method>OTHER</resolution_method>
                    <software_list>
                        <software>
                            <name>Burnham-Brandeis, Helical, Package</name>
                        </software>
                    </software_list>
                    <details>Final map was filtered to 28 angstrom resolution</details>
                </final_reconstruction>
                <ctf_correction>
                    <details>Each micrograph</details>
                </ctf_correction>
            </helical_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="65537">
        <file>emd_2415.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>256</col>
            <row>256</row>
            <sec>256</sec>
        </dimensions>
        <origin>
            <col>-128</col>
            <row>-128</row>
            <sec>-128</sec>
        </origin>
        <spacing>
            <x>256</x>
            <y>256</y>
            <z>256</z>
        </spacing>
        <cell>
            <a units="&#8491;">793.6</a>
            <b units="&#8491;">793.6</b>
            <c units="&#8491;">793.6</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>-6.34101105</minimum>
            <maximum>10.958843229999999</maximum>
            <average>0.02637818</average>
            <std>1.23229754</std>
        </statistics>
        <pixel_spacing>
            <x units="&#8491;">3.1</x>
            <y units="&#8491;">3.1</y>
            <z units="&#8491;">3.1</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>2.0</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <annotation_details>Helical reconstruction of human metapneumovirus matrix protein M bound to DOPC</annotation_details>
        <details>::::EMDATABANK.org::::EMD-2415::::</details>
    </map>
    <interpretation>
        <figure_list>
            <figure>
                <file>emd_2415.tif</file>
            </figure>
        </figure_list>
    </interpretation>
</emd>