<?xml version="1.0" encoding="UTF-8"?>
<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://ftp.ebi.ac.uk/pub/databases/em_ebi/emdb_related/emdb-schemas/emdb_schemas/v3/v3_0_9_3/emdb.xsd" version="3.0.9.3" emdb_id="EMD-10734">
    <admin>
        <current_status>
            <date>2024-11-13</date>
            <code>REL</code>
            <processing_site>PDBe</processing_site>
        </current_status>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2020-03-06</deposition>
            <header_release>2020-08-26</header_release>
            <map_release>2020-08-26</map_release>
            <update>2024-11-13</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>European Research Council (ERC)</funding_body>
                <code>309657</code>
                <country>France</country>
            </grant_reference>
        </grant_support>
        <title>Structure of full-length CD20 in complex with Ofatumumab Fab</title>
        <authors_list>
            <author>Kumar A</author>
            <author>Fronzes R</author>
            <author>Reyes N</author>
        </authors_list>
        <keywords>Cancer immunotherapy, Therapeutic antibody, MEMBRANE PROTEIN</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author ORCID="0000-0002-2997-9959" order="1">Kumar A</author>
                    <author ORCID="0000-0002-5142-7253" order="2">Planchais C</author>
                    <author ORCID="0000-0003-3031-9824" order="3">Fronzes R</author>
                    <author ORCID="0000-0002-4230-610X" order="4">Mouquet H</author>
                    <author ORCID="0000-0001-6618-8307" order="5">Reyes N</author>
                    <title>Binding mechanisms of therapeutic antibodies to human CD20.</title>
                    <journal_abbreviation>Science</journal_abbreviation>
                    <country>US</country>
                    <volume>369</volume>
                    <first_page>793</first_page>
                    <last_page>799</last_page>
                    <year>2020</year>
                    <external_references type="PUBMED">32792392</external_references>
                    <external_references type="DOI">doi:10.1126/science.abb8008</external_references>
                    <external_references type="ISSN">1095-9203</external_references>
                    <external_references type="CSD">0038</external_references>
                    <external_references type="ASTM">SCIEAS</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-10733</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
                <details>6Y97 same protein complex but focused refined</details>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-10732</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
                <details>CD20 in complex with Ofatumumab Fab</details>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-10731</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
                <details>CD20 in complex with Rituximab</details>
            </emdb_reference>
        </emdb_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>6y9a</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Full-length human antigen CD20 in complex with Obinutuzumab</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Full-length human antigen CD20 in complex with Obinutuzumab</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_list>
            </complex_supramolecule>
            <complex_supramolecule supramolecule_id="2">
                <name>Full-length human CD20</name>
                <parent>1</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
            </complex_supramolecule>
            <complex_supramolecule supramolecule_id="3">
                <name>Obinutuzumab Fab</name>
                <parent>1</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>2</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>3</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>B-lymphocyte antigen CD20</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                    <cell>B-Lymphocyte</cell>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.018735373</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="9606">Homo sapiens</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>FMRESKTLGAVQIMNGLFHIALGGLLMIPAGIYAPICVTVWYPLWGGIMYIISGSLLAATEKNSRKCLVKGKMIMNSLSL
FAAISGMILSIMDILNIKISHFLKMESLNFIRAHTPYINIYNCEPANPSEKNSPSTQYCYSIQSLFLGILSVMLIFAFFQ
ELVIAGIVE</string>
                    <external_references type="UNIPROTKB">P11836</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>Obinutuzumab Fab heavy chain</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.023407259999999996</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="9606">Homo sapiens</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>VQLVQSGAEVKKPGSSVKVSCKASGYAFSYSWINWVRQAPGQGLEWMGRIFPGDGDTDYNGKFKGRVTITADKSTSTAYM
ELSSLRSEDTAVYYCARNVFDGYWLVYWGQGTLVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWN
SGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPK</string>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="3">
                <name>Obinutuzumab Fab Light chain</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.023964822</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="9606">Homo sapiens</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>DIVMTQTPLSLPVTPGEPASISCRSSKSLLHSNGITYLYWYLQKPGQSPQLLIYQMSNLVSGVPDRFSGSGSGTDFTLKI
SRVEAEDVGVYYCAQNLELPYTFGGGTKVEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQ
SGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC</string>
                </sequence>
            </protein_or_peptide>
        </macromolecule_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">1.2</concentration>
                    <buffer>
                        <ph>7.4</ph>
                        <component>
                            <concentration units="mM">50.0</concentration>
                            <formula>HEPES</formula>
                            <name>(4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid)</name>
                        </component>
                        <component>
                            <concentration units="mM">100.0</concentration>
                            <formula>NaCl</formula>
                            <name>Sodium Chloride</name>
                        </component>
                        <component>
                            <concentration units="Percent">0.0084</concentration>
                            <formula>GDN</formula>
                            <name>GDN101</name>
                        </component>
                        <component>
                            <concentration units="Percent">0.00168</concentration>
                            <formula>CHS</formula>
                            <name>Cholesterol hemisuccinate</name>
                        </component>
                    </buffer>
                    <grid>
                        <model>Quantifoil R1.2/1.3</model>
                        <material>GOLD</material>
                        <mesh>300</mesh>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <time units="s">20</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>Grids were blot for 3.5 Sec.. </details>
                    </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">300</acceleration_voltage>
                    <c2_aperture_diameter units="µm">50.0</c2_aperture_diameter>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <calibrated_defocus_min units="µm">0.8</calibrated_defocus_min>
                    <calibrated_defocus_max units="µm">2.0</calibrated_defocus_max>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K2 SUMMIT (4k x 4k)</film_or_detector_model>
                            <detector_mode>COUNTING</detector_mode>
                            <digitization_details>
                                <frames_per_image>1-40</frames_per_image>
                            </digitization_details>
                            <number_grids_imaged>1</number_grids_imaged>
                            <number_real_images>10545</number_real_images>
                            <average_electron_dose_per_image units="e/Å^2">42.84</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                </single_particle_microscopy>
            </microscopy_list>
            <singleparticle_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <particle_selection>
                    <number_selected>1316678</number_selected>
                </particle_selection>
                <startup_model type_of_model="PDB ENTRY">
                    <pdb_model>
                        <pdb_id>3PP4</pdb_id>
                    </pdb_model>
                </startup_model>
                <final_reconstruction>
                    <number_classes_used>3</number_classes_used>
                    <applied_symmetry>
                        <point_group>C1</point_group>
                    </applied_symmetry>
                    <resolution units="Å" res_type="BY AUTHOR">4.2</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>2.14.2</version>
                        </software>
                    </software_list>
                    <number_images_used>63547</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>2.14.2</version>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>2.14.2</version>
                        </software>
                    </software_list>
                </final_angle_assignment>
                <final_three_d_classification>
                    <number_classes>4</number_classes>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>2.14.2</version>
                        </software>
                    </software_list>
                </final_three_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="171501">
        <file>emd_10734.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>350</col>
            <row>350</row>
            <sec>350</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>350</x>
            <y>350</y>
            <z>350</z>
        </spacing>
        <cell>
            <a units="Å">284.9</a>
            <b units="Å">284.9</b>
            <c units="Å">284.9</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>-0.93773156</minimum>
            <maximum>1.336014</maximum>
            <average>0.0015358375</average>
            <std>0.040006608</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">0.814</x>
            <y units="Å">0.814</y>
            <z units="Å">0.814</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.22</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-10734::::</label>
        <annotation_details>Full-length human CD20 in complex with Obinutuzumab</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <initial_model>
                    <access_code>3PP4</access_code>
                    <chain>
                        <chain_id>H</chain_id>
                        <residue_range>2-220</residue_range>
                        <source_name>PDB</source_name>
                        <initial_model_type>experimental model</initial_model_type>
                    </chain>
                </initial_model>
                <initial_model>
                    <access_code>3PP4</access_code>
                    <chain>
                        <chain_id>L</chain_id>
                        <residue_range>1-219</residue_range>
                        <source_name>PDB</source_name>
                        <initial_model_type>experimental model</initial_model_type>
                    </chain>
                </initial_model>
                <initial_model>
                    <access_code>6Y90</access_code>
                    <chain>
                        <residue_range>45-213</residue_range>
                        <source_name>PDB</source_name>
                        <initial_model_type>experimental model</initial_model_type>
                    </chain>
                </initial_model>
                <refinement_protocol>RIGID BODY FIT</refinement_protocol>
                <refinement_space>REAL</refinement_space>
            </modelling>
        </modelling_list>
    </interpretation>
</emd>
