<emd emdb_id="EMD-5681" 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>2013-06-03</deposition>
            <header_release>2013-07-03</header_release>
            <map_release>2013-10-16</map_release>
            <update>2013-11-20</update>
        </key_dates>
        <title>Protein-Ligand Interactions by Electron Microscopy: a Disaccharide receptor analog complex of Adeno-Associated Virus</title>
        <authors_list>
            <author>Xie Q</author>
            <author>Spilman M</author>
            <author>Meyer N</author>
            <author>Lerch T</author>
            <author>Stagg S</author>
            <author>Chapman M</author>
        </authors_list>
        <keywords>Adeno-Associated Virus, contrast transfer function, heparin-binding domain, heparan sulfate proteoglycan, Virus-like particle</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Xie Q</author>
                    <author order="2">Spilman M</author>
                    <author order="3">Meyer NL</author>
                    <author order="4">Lerch TF</author>
                    <author order="5">Stagg SM</author>
                    <author order="6">Chapman MS</author>
                    <title>Electron microscopy analysis of a disaccharide analog complex reveals receptor interactions of adeno-associated virus.</title>
                    <journal>J.STRUCT.BIOL.</journal>
                    <volume>184</volume>
                    <first_page>129</first_page>
                    <last_page>135</last_page>
                    <year>2013</year>
                    <external_references type="PUBMED">24036405</external_references>
                    <external_references type="DOI">doi:10.1016/j.jsb.2013.09.004</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>3j4p</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Recombinant Adeno-Associated virus DJ with Sucrose Octasulfate</name>
        <supramolecule_list>
            <sample_supramolecule supramolecule_id="1000">
                <name>Recombinant Adeno-Associated virus DJ with Sucrose Octasulfate</name>
                <oligomeric_state>one virus subunit binds to one molecule of sucrose octasulfate</oligomeric_state>
                <number_unique_components>2</number_unique_components>
                <molecular_weight>
                    <experimental units="MDa">3.7</experimental>
                    <theoretical units="MDa">3.7</theoretical>
                </molecular_weight>
            </sample_supramolecule>
            <virus_supramolecule supramolecule_id="1">
                <name synonym="Recombinant Adeno-Associated Virus DJ, AAVDJ">Adeno-associated virus</name>
                <sci_species_name ncbi="272636">Adeno-associated virus</sci_species_name>
                <natural_host database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                    <synonym_organism>VERTEBRATES</synonym_organism>
                </natural_host>
                <host_system database="NCBI">
                    <recombinant_organism ncbi="7108">Spodoptera frugiperda</recombinant_organism>
                    <recombinant_strain>sf9</recombinant_strain>
                    <recombinant_plasmid>pAVDJ</recombinant_plasmid>
                </host_system>
                <molecular_weight>
                    <experimental units="MDa">3.7</experimental>
                    <theoretical units="MDa">3.7</theoretical>
                </molecular_weight>
                <virus_shell shell_id="1">
                    <diameter units="&#8491;">275</diameter>
                    <triangulation>1</triangulation>
                </virus_shell>
                <virus_type>VIRUS-LIKE PARTICLE</virus_type>
                <virus_isolate>SEROTYPE</virus_isolate>
                <virus_enveloped>false</virus_enveloped>
                <virus_empty>true</virus_empty>
                <syn_species_name>Recombinant Adeno-Associated Virus DJ, AAVDJ</syn_species_name>
                <sci_species_serotype>DJ</sci_species_serotype>
            </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">1.5</concentration>
                    <buffer>
                        <ph>6.8</ph>
                        <details>10 mM Tris, 125 mM NaCl, 1 mM MgCl2</details>
                    </buffer>
                    <grid>
                        <details>400 mesh carbon-coated grids (C-flat) glow-discharged for 5 seconds (Gatan Model 950)</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                        <method>Both sides of the grid were blotted for 2.5 seconds.</method>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_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">120</acceleration_voltage>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_defocus_min units="&#181;m">0.8</nominal_defocus_min>
                    <nominal_defocus_max units="&#181;m">2.0</nominal_defocus_max>
                    <nominal_magnification>120000.0</nominal_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <temperature>
                        <temperature_average units="K">94</temperature_average>
                    </temperature>
                    <alignment_procedure>
                        <legacy>
                            <astigmatism>Objective lens astigmatism was corrected at 120,000 times magnification</astigmatism>
                        </legacy>
                    </alignment_procedure>
                    <date>2013-04-15</date>
                    <image_recording_list>
                        <image_recording>
                            <film_or_detector_model category="CCD">GATAN ULTRASCAN 4000 (4k x 4k)</film_or_detector_model>
                            <number_real_images>5207</number_real_images>
                            <average_electron_dose_per_image units="e/&#8491;^2">15</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                    <specimen_holder>Liquid nitrogen cooled</specimen_holder>
                </single_particle_microscopy>
            </microscopy_list>
            <singleparticle_processing image_processing_id="1">
                <details>Particles were processed semi-automatically using Appion for picking, contrast transfer
function (CTF) estimation, and stack making. Particles were selected automatically
using template matching.</details>
                <ctf_correction>
                    <details>CTF correction of each particle</details>
                </ctf_correction>
                <final_reconstruction>
                    <algorithm>OTHER</algorithm>
                    <resolution res_type="BY AUTHOR" units="&#8491;">4.8</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>FREALIGN</name>
                        </software>
                    </software_list>
                    <details>Final map was amplitude corrected using embfactor.</details>
                    <number_images_used>45000</number_images_used>
                </final_reconstruction>
                <final_angle_assignment>
                    <details>Frealign convention</details>
                </final_angle_assignment>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="78609">
        <file>emd_5681.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>272</col>
            <row>272</row>
            <sec>272</sec>
        </dimensions>
        <origin>
            <col>-136</col>
            <row>-136</row>
            <sec>-136</sec>
        </origin>
        <spacing>
            <x>272</x>
            <y>272</y>
            <z>272</z>
        </spacing>
        <cell>
            <a units="&#8491;">355.4224</a>
            <b units="&#8491;">355.4224</b>
            <c units="&#8491;">355.4224</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>-5.81486082</minimum>
            <maximum>12.86448002</maximum>
            <average>0.26637372</average>
            <std>1.47994912</std>
        </statistics>
        <pixel_spacing>
            <x units="&#8491;">1.3067</x>
            <y units="&#8491;">1.3067</y>
            <z units="&#8491;">1.3067</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>3.0</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <annotation_details>Reconstruction of Adeno-Associated Virus DJ</annotation_details>
        <details>::::EMDATABANK.org::::EMD-5681::::</details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <initial_model>
                    <access_code>3J1Q</access_code>
                    <chain>
                        <chain_id>A</chain_id>
                    </chain>
                </initial_model>
                <refinement_protocol>RIGID BODY FIT</refinement_protocol>
                <software_list>
                    <software>
                        <name>Chimera</name>
                    </software>
                </software_list>
                <target_criteria>CC</target_criteria>
                <refinement_space>REAL</refinement_space>
                <overall_bvalue>25.0</overall_bvalue>
            </modelling>
        </modelling_list>
    </interpretation>
</emd>