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        <sites>
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        <key_dates>
            <deposition>2025-01-17</deposition>
            <header_release>2025-03-26</header_release>
            <map_release>2025-03-26</map_release>
            <update>2025-06-11</update>
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        <grant_support>
            <grant_reference>
                <funding_body>National Science Foundation (NSF, United States)</funding_body>
                <code>DGE-1656518</code>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>Cryo-EM Structure of Human Enterovirus D68 USA/IL/14-18952</title>
        <authors_list>
            <author>Xu L</author>
            <author>Pintilie G</author>
            <author>Varanese L</author>
            <author>Carette JE</author>
            <author>Chiu W</author>
        </authors_list>
        <keywords>Virus, Enterovirus</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Varanese L</author>
                    <author order="2">Xu L</author>
                    <author order="3">Peters CE</author>
                    <author order="4">Pintilie G</author>
                    <author order="5">Roberts DS</author>
                    <author order="6">Raj S</author>
                    <author order="7">Liu M</author>
                    <author order="8">Ooi YS</author>
                    <author order="9">Diep J</author>
                    <author order="10">Qiao W</author>
                    <author order="11">Richards CM</author>
                    <author order="12">Callaway J</author>
                    <author order="13">Bertozzi CR</author>
                    <author order="14">Jabs S</author>
                    <author order="15">de Vries E</author>
                    <author order="16">van Kuppeveld FJM</author>
                    <author order="17">Nagamine CM</author>
                    <author order="18">Chiu W</author>
                    <author order="19">Carette JE</author>
                    <title>MFSD6 is an entry receptor for enterovirus D68.</title>
                    <journal_abbreviation>Nature</journal_abbreviation>
                    <country>UK</country>
                    <volume>641</volume>
                    <first_page>1268</first_page>
                    <last_page>1275</last_page>
                    <year>2025</year>
                    <external_references type="PUBMED">40132641</external_references>
                    <external_references type="DOI">doi:10.1038/s41586-025-08908-0</external_references>
                    <external_references type="ISSN">1476-4687</external_references>
                    <external_references type="CSD">0006</external_references>
                    <external_references type="ASTM">NATUAS</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
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                <emdb_id>EMD-48713</emdb_id>
                <relationship>
                    <other>other EM volume</other>
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                <details>Cryo-EM Structure of Human Enterovirus D68 USA/IL/14-18952 in Complex with MFSD6(L3)-Fc</details>
            </emdb_reference>
        </emdb_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>9mwz</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>enterovirus D68</name>
        <supramolecule_list>
            <virus_supramolecule supramolecule_id="1">
                <name>enterovirus D68</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>2</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>3</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>4</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <details>Enterovirus D68 propagated and purified from infection of RD cells</details>
                <sci_species_name ncbi="42789">enterovirus D68</sci_species_name>
                <sci_species_strain>14-18952</sci_species_strain>
                <natural_host database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_host>
                <virus_type>VIRION</virus_type>
                <virus_isolate>STRAIN</virus_isolate>
                <virus_enveloped>false</virus_enveloped>
                <virus_empty>false</virus_empty>
            </virus_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>viral protein 1</name>
                <natural_source database="NCBI">
                    <organism ncbi="42789">enterovirus D68</organism>
                    <strain>USA/IL/14-18952</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.032854242</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>IESIIKTATDTVKSEINAELGVVPSLNAVETGATSNTEPEEAIQTRTVINQHGVSETLVENFLSRAALVSKRSFEYKDHT
SSAAQTDKNFFKWTINTRSFVQLRRKLELFTYLRFDAEITILTTVAVNGSSNNTYVGLPDLTLQAMFVPTGALTPEKQDS
FHWQSGSNASVFFKISDPPARMTIPFMCINSAYSVFYDGFAGFEKSGLYGINPADTIGNLCVRIVNEHQPVGFTVTVRVY
MKPKHIKAWAPRPPRTLPYMSIANANYKGKGRAPNALNAIIGNRDSVKTMPHNIVTT</string>
                    <external_references type="UNIPROTKB">A0A1I9KHM1</external_references>
                </sequence>
                <ec_number>3.4.22.29</ec_number>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>viral protein 2</name>
                <natural_source database="NCBI">
                    <organism ncbi="42789">enterovirus D68</organism>
                    <strain>USA/IL/14-18952</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.026527137</theoretical>
                </molecular_weight>
                <details>Residues 1-11 deleted</details>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>RVLQLKLGNSAIVTQEAANYCCAYGEWPNYLPDHEAVAIDKPTQPETATDRFYTLRSVKWEAGSTGWWWKLPDALNNIGM
FGQNVQHHYLYRSGFLIHVQCNATKFHQGALLVVAIPEHQRGAHNTNTSPGFDDIMKGEEGGTFNHPYVLDDGTSLACAT
IFPHQWINLRTNNSATIVLPWMNAAPMDFPLRHNQWTLAIIPVVPLGTRTMSSMVPITVSIAPMCCEFNGLRHAITQ</string>
                    <external_references type="UNIPROTKB">A0A1P7ZRE5</external_references>
                </sequence>
                <ec_number>3.4.22.29</ec_number>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="3">
                <name>viral protein 3</name>
                <natural_source database="NCBI">
                    <organism ncbi="42789">enterovirus D68</organism>
                    <strain>USA/IL/14-18952</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.027156866999999998</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>GVPTYLLPGSGQFLTTDDHSSAPVLPCFNPTPEMHIPGQVRNMLEVVQVESMMEINNTESAVGMERLKVDISALTDVDQL
LFNIPLDIQLDGPLRNTLVGNISRYYTHWSGSLEMTFMFCGSFMATGKLILCYTPPGGSCPTTRETAMLGTHVVWDFGLQ
SSVTLIIPWISGSHYRMFNNDAKSTNANVGYVTCFMQTNLIVPSESSDTCSLIGFIAAKDDFSLRLMRDSPDIGQLDHLH
AAEAAYQ</string>
                    <external_references type="UNIPROTKB">A0A097BW17</external_references>
                </sequence>
                <ec_number>3.4.22.29</ec_number>
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            <protein_or_peptide macromolecule_id="4">
                <name>viral protein 4</name>
                <natural_source database="NCBI">
                    <organism ncbi="42789">enterovirus D68</organism>
                    <strain>USA/IL/14-18952</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.003401665</theoretical>
                </molecular_weight>
                <details>Residues 1-27 and 58-68 deleted</details>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>QINFYKDSYAASASKQDFSQDPSKFTEPVV</string>
                    <external_references type="UNIPROTKB">Q68T42</external_references>
                </sequence>
            </protein_or_peptide>
            <ligand macromolecule_id="5">
                <name>water</name>
                <molecular_weight>
                    <theoretical units="MDa">1.8015e-05</theoretical>
                </molecular_weight>
                <number_of_copies>46</number_of_copies>
                <formula>HOH</formula>
            </ligand>
        </macromolecule_list>
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            <aggregation_state>particle</aggregation_state>
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                    <concentration units="mg/mL">0.089</concentration>
                    <buffer>
                        <ph>8.0</ph>
                        <component>
                            <concentration units="mM">20.0</concentration>
                            <formula>Tris-HCl</formula>
                            <name>Tris-HCl, pH 8.0</name>
                        </component>
                        <component>
                            <concentration units="mM">120.0</concentration>
                            <formula>NaCl</formula>
                            <name>sodium chloride</name>
                        </component>
                        <component>
                            <concentration units="mM">1.0</concentration>
                            <formula>EDTA</formula>
                            <name>EDTA, pH 8.0</name>
                        </component>
                        <details>20 mM Tris-HCl (pH 8.0), 120 mM NaCl, and 1 mM EDTA (pH 8.0)</details>
                    </buffer>
                    <grid>
                        <model>Quantifoil</model>
                        <material>COPPER</material>
                        <mesh>400</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>LACEY</film_topology>
                            <film_thickness>3.0</film_thickness>
                        </support_film>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <time units="s">30</time>
                            <atmosphere>AIR</atmosphere>
                        </pretreatment>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">277.15</chamber_temperature>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                        <details>Freezing carried out with 4 s blot time, 1 s wait time.. </details>
                    </vitrification>
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                    <imaging_mode>DARK 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="µm">1.0</nominal_defocus_min>
                    <nominal_defocus_max units="µm">2.0</nominal_defocus_max>
                    <nominal_magnification>165000.0</nominal_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <alignment_procedure>
                        <basic/>
                    </alignment_procedure>
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                            <number_grids_imaged>1</number_grids_imaged>
                            <number_real_images>10400</number_real_images>
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                            <average_electron_dose_per_image units="e/Å^2">50.0</average_electron_dose_per_image>
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            </microscopy_list>
            <singleparticle_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <particle_selection>
                    <number_selected>23976</number_selected>
                </particle_selection>
                <ctf_correction>
                    <software_list>
                        <software>
                            <name>CTFFIND</name>
                        </software>
                    </software_list>
                    <type>NONE</type>
                </ctf_correction>
                <startup_model type_of_model="INSILICO MODEL">
                    <insilico_model>AlphaFold3 model of VP1, VP2, VP3, and VP4</insilico_model>
                </startup_model>
                <final_reconstruction>
                    <applied_symmetry>
                        <point_group>I</point_group>
                    </applied_symmetry>
                    <algorithm>FOURIER SPACE</algorithm>
                    <resolution units="Å" res_type="BY AUTHOR">2.0</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                        <software>
                            <name>cryoSPARC</name>
                        </software>
                    </software_list>
                    <number_images_used>12930</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                        <software>
                            <name>cryoSPARC</name>
                        </software>
                    </software_list>
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                <final_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                        <software>
                            <name>cryoSPARC</name>
                        </software>
                    </software_list>
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                    <chain>
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                        <initial_model_type>in silico model</initial_model_type>
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                <refinement_protocol>FLEXIBLE FIT</refinement_protocol>
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                <annotation_details>Enterovirus D68 USA/IL/14-18952 apo half map A</annotation_details>
            </half_map>
        </half_map_list>
    </interpretation>
</emd>
