<?xml version="1.0" encoding="UTF-8"?>
<emd emdb_id="EMD-8564" version="2.0">
    <admin>
        <current_status>
            <code>REL</code>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2017-01-19</deposition>
            <header_release>2017-02-15</header_release>
            <map_release>2017-05-31</map_release>
            <update>2017-06-21</update>
        </key_dates>
        <title>CryoEM structure of an influenza virus receptor-binding site antibody-antigen interface - Class 4</title>
        <authors_list>
            <author>Liu Y</author>
            <author>Pan J</author>
        </authors_list>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Liu Y</author>
                    <author order="2">Pan J</author>
                    <author order="3">Jenni S</author>
                    <author order="4">Raymond DD</author>
                    <author order="5">Caradonna T</author>
                    <author order="6">Do KT</author>
                    <author order="7">Schmidt AG</author>
                    <author order="8">Harrison SC</author>
                    <author order="9">Grigorieff N</author>
                    <title>CryoEM Structure of an Influenza Virus Receptor-Binding Site Antibody-Antigen Interface.</title>
                    <journal_abbreviation>J. Mol. Biol.</journal_abbreviation>
                    <country>UK</country>
                    <volume>429</volume>
                    <first_page>1829</first_page>
                    <last_page>1839</last_page>
                    <year>2017</year>
                    <external_references type="pubmed">28506635</external_references>
                    <external_references type="doi">doi:10.1016/j.jmb.2017.05.011</external_references>
                    <external_references type="issn">1089-8638</external_references>
                    <external_references type="csd">0070</external_references>
                    <external_references type="astm">JMOBAK</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-8561</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-8562</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-8563</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
        </emdb_list>
        <pdb_list>
            <pdb_reference id="1">
                <pdb_id>5uk2</pdb_id>
                <relationship>
                    <in_frame>fullOverlap</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <supramolecule_list>
            <supramolecule id="1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="complex">
                <name>Influenza-virus hemagglutinin H1 complexed with K1915 single-chain variable-domain fragment</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <id>1</id>
                    </macromolecule>
                    <macromolecule>
                        <id>2</id>
                    </macromolecule>
                    <macromolecule>
                        <id>3</id>
                    </macromolecule>
                </macromolecule_list>
                <details>The complex consists of three hemagglutinin head domains bound to three single-chain variable-domain fragments.</details>
                <natural_source database="ncbi">
                    <organism ncbi="464623">Influenza A virus (A/Solomon Islands/3/2006(H1N1))</organism>
                </natural_source>
                <recombinant_expression database="ncbi">
                    <organism ncbi="7111">Trichoplusia ni</organism>
                    <cell>Hi-5</cell>
                </recombinant_expression>
                <molecular_weight>
                    <theoretical units="MDa">0.32</theoretical>
                </molecular_weight>
            </supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <macromolecule id="1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="protein_or_peptide">
                <name>Hemagglutinin HA1</name>
                <molecular_weight>
                    <theoretical units="MDa">0.036024344</theoretical>
                </molecular_weight>
                <recombinant_expression database="ncbi">
                    <organism ncbi="464623">Influenza A virus (A/Solomon Islands/3/2006(H1N1))</organism>
                    <strain>A/Solomon Islands/3/2006(H1N1)</strain>
                    <plasmid>pFastBac</plasmid>
                </recombinant_expression>
                <enantiomer>levo</enantiomer>
                <sequence>
                    <string>EDTICIGYHANNSTDTVDTVLEKNVTVTHSVNLLEDSHNGKLCLLKGIAPLQLGNCSVAGWILGNPECELLISRESWSYI
VEKPNPENGTCYPGHFADYEELREQLSSVSSFERFEIFPKESSWPNHTTTGVSASCSHNGESSFYKNLLWLTGKNGLYPN
LSKSYANNKEKEVLVLWGVHHPPNIGDQRALYHTENAYVSVVSSHYSRKFTPEIAKRPKVRDREGRINYYWTLLEPGDTI
IFEANGNLIAPRYAFALSRGFGSGIINSNAPMDECDAKCQTPQGAINSSLPFQNVHPVTIGECPKYVRSAKLRMVTGLRN
IPS</string>
                </sequence>
            </macromolecule>
            <macromolecule id="2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="protein_or_peptide">
                <name>Hemagglutinin HA2</name>
                <molecular_weight>
                    <theoretical units="MDa">0.019841041</theoretical>
                </molecular_weight>
                <recombinant_expression database="ncbi">
                    <organism ncbi="464623">Influenza A virus</organism>
                    <strain>A/Solomon Islands/3/2006(H1N1)</strain>
                    <plasmid>pFASTBAC</plasmid>
                </recombinant_expression>
                <enantiomer>levo</enantiomer>
                <sequence>
                    <string>GLFGAIAGFIEGGWTGMVDGWYGYHHQNEQGSGYAADQKSTQNAINGITNKVNSVIEKMNTQFTAVGKEFNKLERRMENL
NKKVDDGFIDIWTYNAELLVLLENERTLDFHDSNVKNLYEKVKSQLKNNAKEIGNGCFEFYHKCNDECMESVKNGTYDYP
KYSEESKLNREKI</string>
                </sequence>
            </macromolecule>
            <macromolecule id="3" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="protein_or_peptide">
                <name>scFv</name>
                <molecular_weight>
                    <theoretical units="MDa">0.027629385</theoretical>
                </molecular_weight>
                <recombinant_expression database="ncbi">
                    <organism ncbi="9606">Homo sapiens</organism>
                    <plasmid>pVRC</plasmid>
                </recombinant_expression>
                <enantiomer>levo</enantiomer>
                <sequence>
                    <string>EIVLTQSPGTLSLSPGERATLSCRASQSISGYYLTWYQQKPGQAPRLLIYGASSRATGIPDRFSGSGSGTDFTLTISRLE
PEDFAVYYCQQYGISPVITFGGGTNVEIKGGGGGSGGGGSGGGGSEVQLVESGGGLVQPGGSLRLSCAASGFTFNIYDMH
WVRQAPGKGLEWVSGLTTGGDTSYSGSVRGRFSISRENAKNSLYLQMNNLRAGDTAAYFCVRGVREVGATGGDPFYYAMA
VWGQGTTVTVSSASGSSGSGHHHHHH</string>
                </sequence>
            </macromolecule>
            <macromolecule id="4" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="ligand">
                <name>BETA-D-MANNOSE</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000180156</theoretical>
                </molecular_weight>
                <number_of_copies>3</number_of_copies>
                <formula>BMA</formula>
            </macromolecule>
            <macromolecule id="5" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="ligand">
                <name>N-ACETYL-D-GLUCOSAMINE</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000221208</theoretical>
                </molecular_weight>
                <number_of_copies>30</number_of_copies>
                <formula>NAG</formula>
            </macromolecule>
        </macromolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination>
            <method>singleParticle</method>
            <aggregation_state>particle</aggregation_state>
            <specimen_preparation_list>
                <specimen_preparation id="1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="base_preparation_type">
                    <concentration units="mg/mL">0.1</concentration>
                    <buffer>
                        <ph>8.</ph>
                        <details>Beta-octylglucoside was added to a final concentration of 0.07% w/v to induce more variable particle orientations.</details>
                    </buffer>
                    <grid>
                        <model>Quantifoil R 1.2/1.3</model>
                        <material>COPPER</material>
                        <mesh>200</mesh>
                        <support_film>
                            <film_material>CARBON</film_material>
                            <film_topology>HOLEY ARRAY</film_topology>
                        </support_film>
                        <glow_discharge>
                            <atmosphere>Air</atmosphere>
                        </glow_discharge>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity>90.0</chamber_humidity>
                        <chamber_temperature>298.0</chamber_temperature>
                        <instrument>FEI VITROBOT MARK I</instrument>
                    </vitrification>
                </specimen_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <microscopy id="1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="base_microscopy_type">
                    <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>300</acceleration_voltage>
                    <nominal_cs>2.7</nominal_cs>
                    <calibrated_defocus_min>1000.0</calibrated_defocus_min>
                    <calibrated_defocus_max>9000.0</calibrated_defocus_max>
                    <nominal_magnification>18000.</nominal_magnification>
                    <calibrated_magnification>30444.</calibrated_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <temperature>
                        <temperature_min>70.0</temperature_min>
                        <temperature_max>70.0</temperature_max>
                    </temperature>
                    <alignment_procedure>
                        <basic/>
                    </alignment_procedure>
                    <image_recording_list>
                        <image_recording id="1">
                            <film_or_detector_model>GATAN K2 SUMMIT (4k x 4k)</film_or_detector_model>
                            <detector_mode>SUPER-RESOLUTION</detector_mode>
                            <digitization_details>
                                <dimensions>
                                    <width>7676</width>
                                    <height>7420</height>
                                </dimensions>
                                <sampling_interval>2.5</sampling_interval>
                                <frames_per_image>38</frames_per_image>
                            </digitization_details>
                            <number_grids_imaged>1</number_grids_imaged>
                            <number_real_images>10281</number_real_images>
                            <average_exposure_time>13.0</average_exposure_time>
                            <average_electron_dose_per_image>40.0</average_electron_dose_per_image>
                            <details>The exposure rate was 8 electrons/physical pixel/second.</details>
                        </image_recording>
                    </image_recording_list>
                </microscopy>
            </microscopy_list>
            <image_processing id="1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="singleparticle_processing_type">
                <image_recording_id>1</image_recording_id>
                <details>The particle images were normalized to have constant variance and zero average. Movies were processed using Unblur.</details>
                <particle_selection>
                    <number_particles_selected>252130</number_particles_selected>
                </particle_selection>
                <ctf_correction>
                    <correction_operation>PHASE FLIPPING AND AMPLITUDE CORRECTION</correction_operation>
                    <software_list>
                        <software>
                            <name>CTFFIND3</name>
                        </software>
                    </software_list>
                </ctf_correction>
                <startup_model>
                    <other>OTHER</other>
                    <details>A starting map was determined using rosettes formed from Ni-NTA nanogold and His-tagged particles.</details>
                </startup_model>
                <initial_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing>
                        <angular_sampling units="degrees">7.5</angular_sampling>
                    </projection_matching_processing>
                    <software_list>
                        <software>
                            <name>IMAGIC</name>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_reconstruction>
                    <number_images_used>142314</number_images_used>
                    <number_classes_used>3</number_classes_used>
                    <algorithm>FOURIER SPACE</algorithm>
                    <resolution>4.8</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>Frealign</name>
                            <version>9.11</version>
                        </software>
                    </software_list>
                    <details>Refinement and classification were limited to 10 Angstrom resolution.</details>
                </final_reconstruction>
                <final_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing/>
                    <software_list>
                        <software>
                            <name>Frealign</name>
                            <version>9.11</version>
                        </software>
                    </software_list>
                </final_angle_assignment>
            </image_processing>
        </structure_determination>
    </structure_determination_list>
    <map size_kbytes="6913" format="CCP4">
        <file>emd_8564.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>-60</col>
            <row>-60</row>
            <sec>-60</sec>
        </origin>
        <spacing>
            <x>120</x>
            <y>120</y>
            <z>120</z>
        </spacing>
        <cell>
            <a>196.8</a>
            <b>196.8</b>
            <c>196.8</c>
            <alpha>90.0</alpha>
            <beta>90.0</beta>
            <gamma>90.0</gamma>
        </cell>
        <axis_order>
            <fast>x</fast>
            <medium>y</medium>
            <slow>z</slow>
        </axis_order>
        <statistics>
            <minimum>-3.741372</minimum>
            <maximum>8.258274999999999</maximum>
            <average>0.071280874</average>
            <std>0.45758796</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">1.64</x>
            <y units="Å">1.64</y>
            <z units="Å">1.64</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>2.52</level>
                <source>emdb</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-8564::::</label>
        <annotation_details>influenza virus receptor-binding site antibody-antigen interface - Class 4</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <refinement_protocol>OTHER</refinement_protocol>
                <details>Domains were initially placed manually using Chimera. The HA trimer was from PDB ID 5UGY.  Fab was initially obtained using MODELLER, with PDB ID 4K8R as template. The structure was refined using PHENIX.</details>
                <target_criteria>Correlation coefficient</target_criteria>
                <refinement_space>REAL</refinement_space>
            </modelling>
        </modelling_list>
    </interpretation>
</emd>
