<emd emdb_id="EMD-6639" 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>PDBj</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>PDBj</last_processing>
        </sites>
        <key_dates>
            <deposition>2016-04-29</deposition>
            <header_release>2016-06-15</header_release>
            <map_release>2016-12-28</map_release>
            <update>2016-12-28</update>
        </key_dates>
        <title>Cryo-electron microscopy of a deletion mutant (d385-399) of Flock House virus VLP</title>
        <authors_list>
            <author>Bajaj S</author>
            <author>Dey D</author>
            <author>Kumar M</author>
            <author>Banerjee M</author>
        </authors_list>
        <keywords>Flock House virus, VLP, gamma</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Bajaj S</author>
                    <author order="2">Dey D</author>
                    <author order="3">Bhukar R</author>
                    <author order="4">Kumar M</author>
                    <author order="5">Banerjee M</author>
                    <title>Non-Enveloped Virus Entry: Structural Determinants and Mechanism of Functioning of a Viral Lytic Peptide.</title>
                    <journal>J.MOL.BIOL.</journal>
                    <volume>428</volume>
                    <first_page>3540</first_page>
                    <last_page>3556</last_page>
                    <year>2016</year>
                    <external_references type="PUBMED">27320388</external_references>
                    <external_references type="DOI">doi:10.1016/j.jmb.2016.06.006</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
    </crossreferences>
    <sample>
        <name>Virus-like particle of deletion mutant (d385-399) of Flock House virus</name>
        <supramolecule_list>
            <sample_supramolecule supramolecule_id="1000">
                <name>Virus-like particle of deletion mutant (d385-399) of Flock House virus</name>
                <oligomeric_state>180 molecules of capsid protein make up one particle</oligomeric_state>
                <number_unique_components>1</number_unique_components>
                <molecular_weight>
                    <theoretical units="MDa">9</theoretical>
                </molecular_weight>
            </sample_supramolecule>
            <virus_supramolecule supramolecule_id="1">
                <name>Flock house virus</name>
                <details>Residues 385-399 of the capsid protein have been deleted</details>
                <sci_species_name ncbi="12287">Flock house virus</sci_species_name>
                <natural_host database="NCBI">
                    <organism ncbi="50579">Costelytra zealandica</organism>
                    <synonym_organism>INVERTEBRATES</synonym_organism>
                </natural_host>
                <host_system database="NCBI">
                    <recombinant_organism ncbi="7108">Spodoptera frugiperda</recombinant_organism>
                    <recombinant_cell>Sf21</recombinant_cell>
                    <recombinant_plasmid>pBacPAK9</recombinant_plasmid>
                </host_system>
                <molecular_weight>
                    <theoretical units="MDa">9</theoretical>
                </molecular_weight>
                <virus_shell shell_id="1">
                    <name>Alpha</name>
                    <diameter units="&#8491;">336</diameter>
                    <triangulation>3</triangulation>
                </virus_shell>
                <virus_type>VIRUS-LIKE PARTICLE</virus_type>
                <virus_isolate>SPECIES</virus_isolate>
                <virus_enveloped>false</virus_enveloped>
                <virus_empty>false</virus_empty>
            </virus_supramolecule>
        </supramolecule_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">2.5</concentration>
                    <buffer>
                        <ph>7.4</ph>
                        <details>50 mM HEPES, 5mM CaCl2</details>
                    </buffer>
                    <grid>
                        <details>300 mesh copper, Quantifoil R2/2 grid</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">77</chamber_temperature>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                        <method>Blot for 3 seconds at a blot force of 0 before plunging</method>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_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>
                    <nominal_cs units="mm">1.2</nominal_cs>
                    <nominal_defocus_min units="&#181;m">0.5</nominal_defocus_min>
                    <nominal_defocus_max units="&#181;m">3.0</nominal_defocus_max>
                    <nominal_magnification>80000.0</nominal_magnification>
                    <specimen_holder_model>GATAN LIQUID NITROGEN</specimen_holder_model>
                    <temperature>
                        <temperature_min units="K">77</temperature_min>
                        <temperature_max units="K">97</temperature_max>
                        <temperature_average units="K">94</temperature_average>
                    </temperature>
                    <alignment_procedure>
                        <legacy>
                            <astigmatism>Objective lens astigmatism was corrected at 80,000x magnification</astigmatism>
                        </legacy>
                    </alignment_procedure>
                    <date>2016-01-08</date>
                    <image_recording_list>
                        <image_recording>
                            <film_or_detector_model category="CCD">FEI EAGLE (4k x 4k)</film_or_detector_model>
                            <number_real_images>1199</number_real_images>
                            <average_electron_dose_per_image units="e/&#8491;^2">10</average_electron_dose_per_image>
                            <bits_per_pixel>2.</bits_per_pixel>
                        </image_recording>
                    </image_recording_list>
                </single_particle_microscopy>
            </microscopy_list>
            <singleparticle_processing image_processing_id="1">
                <details>Particles were boxed using the "Swarm mode" of e2boxer.py. Initial model generated by imposing icosahedral symmetry, and 3D refinement using e2refine_easy.py</details>
                <ctf_correction>
                    <details>Each particle</details>
                </ctf_correction>
                <final_reconstruction>
                    <algorithm>OTHER</algorithm>
                    <resolution res_type="BY AUTHOR" units="&#8491;">14.5</resolution>
                    <resolution_method>OTHER</resolution_method>
                    <software_list>
                        <software>
                            <name>EMAN2</name>
                        </software>
                    </software_list>
                    <number_images_used>20199</number_images_used>
                </final_reconstruction>
                <final_two_d_classification>
                    <number_classes>82</number_classes>
                </final_two_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="221185">
        <file>emd_6639.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>384</col>
            <row>384</row>
            <sec>384</sec>
        </dimensions>
        <origin>
            <col>-192</col>
            <row>-192</row>
            <sec>-192</sec>
        </origin>
        <spacing>
            <x>384</x>
            <y>384</y>
            <z>384</z>
        </spacing>
        <cell>
            <a units="&#8491;">384.0</a>
            <b units="&#8491;">384.0</b>
            <c units="&#8491;">384.0</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>-0.78284472</minimum>
            <maximum>1.65642786</maximum>
            <average>0.07824882</average>
            <std>0.2857343</std>
        </statistics>
        <pixel_spacing>
            <x units="&#8491;">1.0</x>
            <y units="&#8491;">1.0</y>
            <z units="&#8491;">1.0</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.6</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <annotation_details>Reconstruction of deletion mutant (d385-399) Flock House virus VLP</annotation_details>
        <details>::::EMDATABANK.org::::EMD-6639::::</details>
    </map>
    <interpretation>
        <figure_list>
            <figure>
                <file>emd_6639.tif</file>
            </figure>
        </figure_list>
    </interpretation>
    <validation>
        <fsc_curve>
            <file>emd_6639_fsc.xml</file>
        </fsc_curve>
    </validation>
</emd>