<?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_11_0/emdb.xsd" version="3.0.11.0" emdb_id="EMD-64356">
    <admin composite_map="true">
        <current_status>
            <date>2026-02-25</date>
            <code>REL</code>
            <processing_site>PDBc</processing_site>
        </current_status>
        <revision_history>
            <revision version="1.0" date="2026-02-18">
                <change_list>
                    <model>
                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
                    </model>
                    <metadata>
                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
                    </metadata>
                    <image>
                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
                    </image>
                    <primary_map>
                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
                    </primary_map>
                </change_list>
            </revision>
            <revision version="1.1" date="2026-02-25">
                <change_list>
                    <model>
                        <revision_group>DATABASE_REFERENCES</revision_group>
                        <categories>
                            <category>citation</category>
                            <category>citation_author</category>
                            <category>em_admin</category>
                        </categories>
                        <items>
                            <item>_citation.country</item>
                            <item>_citation.journal_abbrev</item>
                            <item>_citation.journal_id_ASTM</item>
                            <item>_citation.journal_id_CSD</item>
                            <item>_citation.journal_id_ISSN</item>
                            <item>_citation.pdbx_database_id_DOI</item>
                            <item>_citation.pdbx_database_id_PubMed</item>
                            <item>_citation.title</item>
                            <item>_citation.year</item>
                            <item>_em_admin.last_update</item>
                        </items>
                    </model>
                </change_list>
            </revision>
            <revision version="2.0" date="2026-02-25">
                <change_list>
                    <metadata>
                        <revision_group>EXPERIMENTAL_SUMMARY</revision_group>
                        <categories>
                            <category>citation</category>
                            <category>citation_author</category>
                            <category>em_admin</category>
                        </categories>
                        <items>
                            <item>_citation.country</item>
                            <item>_citation.journal_abbrev</item>
                            <item>_citation.journal_id_ASTM</item>
                            <item>_citation.journal_id_CSD</item>
                            <item>_citation.journal_id_ISSN</item>
                            <item>_citation.pdbx_database_id_DOI</item>
                            <item>_citation.pdbx_database_id_PubMed</item>
                            <item>_citation.title</item>
                            <item>_citation.year</item>
                            <item>_em_admin.last_update</item>
                        </items>
                    </metadata>
                </change_list>
            </revision>
        </revision_history>
        <sites>
            <deposition>PDBj</deposition>
            <last_processing>PDBc</last_processing>
        </sites>
        <key_dates>
            <deposition>2025-04-23</deposition>
            <header_release>2026-02-18</header_release>
            <map_release>2026-02-18</map_release>
            <update>2026-02-25</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>Chinese Academy of Sciences</funding_body>
                <country>China</country>
            </grant_reference>
        </grant_support>
        <title>native NMDA receptor-GluN1/N2A-S2 in the closed state</title>
        <authors_list>
            <author>Yu J</author>
            <author>Xu RS</author>
            <author>Ge JP</author>
        </authors_list>
        <keywords>native, NMDA receptor, inotropic ion channel, excitatory neurotransmitter, MEMBRANE, open state, MEMBRANE PROTEIN</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Xu R</author>
                    <author order="2">Jiang Q</author>
                    <author order="3">Xu H</author>
                    <author order="4">Zhang L</author>
                    <author order="5">Hu X</author>
                    <author order="6">Lu Z</author>
                    <author order="7">Deng H</author>
                    <author order="8">Xiong H</author>
                    <author ORCID="0000-0001-8827-3959" order="9">Zhang S</author>
                    <author ORCID="0000-0001-5218-0152" order="10">Chen Z</author>
                    <author ORCID="0000-0001-9135-9569" order="11">Ge Y</author>
                    <author ORCID="0000-0002-3272-3567" order="12">Zhu Z</author>
                    <author ORCID="0000-0001-5363-9834" order="13">Zhang Y</author>
                    <author ORCID="0000-0002-9793-2941" order="14">Chen Y</author>
                    <author ORCID="0000-0001-6164-1221" order="15">Ge J</author>
                    <author ORCID="0000-0001-9227-038X" order="16">Yu J</author>
                    <title>Conformational diversity and fully opening mechanism of native NMDA receptor.</title>
                    <journal_abbreviation>Nature</journal_abbreviation>
                    <country>UK</country>
                    <year>2026</year>
                    <external_references type="PUBMED">41673155</external_references>
                    <external_references type="DOI">doi:10.1038/s41586-026-10139-w</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>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-64289</emdb_id>
                <relationship>
                    <other>consensus EM volume</other>
                </relationship>
                <details>overall</details>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-64290</emdb_id>
                <relationship>
                    <other>focused EM volume</other>
                </relationship>
                <details>TMD focused</details>
            </emdb_reference>
        </emdb_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>9unm</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
        <other_db_list>
            <db_reference>
                <db_name>EMDB</db_name>
                <accession_id>EMD-64289</accession_id>
                <content_type>consensus EM volume</content_type>
                <details>overall</details>
            </db_reference>
            <db_reference>
                <db_name>EMDB</db_name>
                <accession_id>EMD-64290</accession_id>
                <content_type>focused EM volume</content_type>
                <details>TMD focused</details>
            </db_reference>
            <db_reference>
                <db_name>EMDB</db_name>
                <accession_id>EMD-64356</accession_id>
                <content_type>associated EM volume</content_type>
                <details>native GluN1/N2A-S2</details>
            </db_reference>
        </other_db_list>
    </crossreferences>
    <sample>
        <name>native NMDA receptor-GluN1/N2A-S2 in the closed state</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>native NMDA receptor-GluN1/N2A-S2 in the closed state</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>2</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="10090">Mus musculus</organism>
                </natural_source>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Glutamate receptor ionotropic, NMDA 1</name>
                <natural_source database="NCBI">
                    <organism ncbi="10090">Mus musculus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.09117207000000001</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>VNIGAVLSTRKHEQMFREAVNQANKRHGSWKIQLNATSVTHKPNAIQMALSVCEDLISSQVYAILVSHPPTPNDHFTPTP
VSYTAGFYRIPVLGLTTRMSIYSDKSIHLSFLRTVPPYSHQSSVWFEMMRVYNWNHIILLVSDDHEGRAAQKRLETLLEE
RESKAEKVLQFDPGTKNVTALLMEARDLEARVIILSASEDDAATVYRAAAMLNMTGSGYVWLVGEREISGNALRYAPDGI
IGLQLINGKNESAHISDAVGVVAQAVHELLEKENITDPPRGCVGNTNIWKTGPLFKRVLMSSKYADGVTGRVEFNEDGDR
KFANYSIMNLQNRKLVQVGIYNGTHVIPNDRKIIWPGGETEKPRGYQMSTRLKIVTIHQEPFVYVKPTMSDGTCKEEFTV
NGDPVKKVICTGPNDTSPGSPRHTVPQCCYGFCVDLLIKLARTMNFTYEVHLVADGKFGTQERVNNSNKKEWNGMMGELL
SGQADMIVAPLTINNERAQYIEFSKPFKYQGLTILVKKEIPRSTLDSFMQPFQSTLWLLVGLSVHVVAVMLYLLDRFSPF
GRFKVNSEEEEEDALTLSSAMWFSWGVLLNSGIGEGAPRSFSARILGMVWAGFAMIIVASYTANLAAFLVLDRPEERITG
INDPRLRNPSDKFIYATVKQSSVDIYFRRQVELSTMYRHMEKHNYESAAEAIQAVRDNKLHAFIWDSAVLEFEASQKCDL
VTTGELFFRSGFGIGMRKDSPWKQNVSLSILKSHENGFMEDLDKTWVRYQECDSRSNAPATLTFENMAGVFMLVAGGIVA
GIFLIFIEIAY</string>
                    <external_references type="UNIPROTKB">P35438</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>Glutamate receptor ionotropic, NMDA 2A</name>
                <natural_source database="NCBI">
                    <organism ncbi="10090">Mus musculus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.09061660199999999</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>PALNIAVLLGHSHDVTERELRNLWGPEQATGLPLDVNVVALLMNRTDPKSLITHVCDLMSGARIHGLVFGDDTDQEAVAQ
MLDFISSQTFIPILGIHGGASMIMADKDPTSTFFQFGASIQQQATVMLKIMQDYDWHVFSLVTTIFPGYRDFISFIKTTV
DNSFVGWDMQNVITLDTSFEDAKTQVQLKKIHSSVILLYCSKDEAVLILSEARSLGLTGYDFFWIVPSLVSGNTELIPKE
FPSGLISVSYDDWDYSLEARVRDGLGILTTAASSMLEKFSYIPEAKASCYGQTEKPETPLHTLHQFMVNVTWDGKDLSFT
EEGYQVHPRLVVIVLNKDREWEKVGKWENQTLSLRHAVWPRYKSFSDCEPDDNHLSIVTLEEAPFVIVEDIDPLTETCVR
NTVPCRKFVKINNSTNEGMNVKKCCKGFCIDILKKLSRTVKFTYDLYLVTNGKHGKKVNNVWNGMIGEVVYQRAVMAVGS
LTINEERSEVVDFSVPFVETGISVMVSRSNGTVSPSAFLEPFSASVWVMMFVMLLIVSAIAVFVFEYFSPVGYNRNLAKG
KAPHGPSFTIGKAIWLLWGLVFNNSVPVQNPKGTTSKIMVSVWAFFAVIFLASYTANLAAFMIQEEFVDQVTGLSDKKFQ
RPHDYSPPFRFGTVPNGSTERNIRNNYPYMHQYMTKFNQRGVEDALVSLKTGKLDAFIYDAAVLNYKAGRDEGCKLVTIG
SGYIFATTGYGIALQKGSPWKRQIDLALLQFVGDGEMEELETLWLTGICHNEKNEVMSSQLDIDNMAGVFYMLAAAMALS
LITFIWEH</string>
                    <external_references type="UNIPROTKB">P35436</external_references>
                </sequence>
            </protein_or_peptide>
            <ligand macromolecule_id="3">
                <name>2-acetamido-2-deoxy-beta-D-glucopyranose</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000221208</theoretical>
                </molecular_weight>
                <number_of_copies>11</number_of_copies>
                <formula>NAG</formula>
            </ligand>
            <ligand macromolecule_id="4">
                <name>(2~{S})-2-(2-chlorophenyl)-2-(methylamino)cyclohexan-1-one</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000237725</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <formula>JC9</formula>
            </ligand>
        </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">
                    <buffer>
                        <ph>8.0</ph>
                    </buffer>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>TFS 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>
                    <nominal_defocus_min units="µm">1.0</nominal_defocus_min>
                    <nominal_defocus_max units="µm">2.0</nominal_defocus_max>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K3 (6k x 4k)</film_or_detector_model>
                            <average_electron_dose_per_image units="e/Å^2">50.0</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>
                <ctf_correction>
                    <type>NONE</type>
                </ctf_correction>
                <startup_model type_of_model="PDB ENTRY">
                    <pdb_model>
                        <pdb_id>7EU7</pdb_id>
                    </pdb_model>
                </startup_model>
                <final_reconstruction>
                    <resolution units="Å" res_type="BY AUTHOR">6.37</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                        </software>
                    </software_list>
                    <number_images_used>43792</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>RANDOM ASSIGNMENT</type>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                </final_angle_assignment>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="256001">
        <file>emd_64356.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>400</col>
            <row>400</row>
            <sec>400</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>400</x>
            <y>400</y>
            <z>400</z>
        </spacing>
        <cell>
            <a units="Å">421.99997</a>
            <b units="Å">421.99997</b>
            <c units="Å">421.99997</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>-0.19145188</minimum>
            <maximum>0.8452476</maximum>
            <average>0.0030642578</average>
            <std>0.01810217</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">1.055</x>
            <y units="Å">1.055</y>
            <z units="Å">1.055</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.1</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-64356::::</label>
    </map>
</emd>
