<?xml version='1.0' encoding='utf-8'?>
<emd emdb_id="EMD-11409" version="3.0.2.4" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://github.com/emdb-empiar/emdb-schemas/blob/master/v3/v3_0_2_4/emdb.xsd">
    <admin>
        <current_status>
            <date>2021-05-26</date>
            <code>REL</code>
            <processing_site>PDBe</processing_site>
        </current_status>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2020-07-16</deposition>
            <header_release>2021-05-26</header_release>
            <map_release>2021-05-26</map_release>
            <update>2021-05-26</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>European Commission</funding_body>
                <code>FP7 GA ERC-2012 SyG_318987 ToPAG</code>
                <country>European Union</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Seneca Foundation</funding_body>
                <country>Spain</country>
            </grant_reference>
        </grant_support>
        <title>Native putative NMDAR-type glutamate receptor, de novo 3D classification C2</title>
        <authors_list>
            <author>Martinez A</author>
            <author>Lucic V</author>
        </authors_list>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Martinez-Sanchez A</author>
                    <author order="2">Laugks U</author>
                    <author order="3">Kochovski Z</author>
                    <author order="4">Papantoniou C</author>
                    <author order="5">Zinzula L</author>
                    <author order="6">Baumeister W</author>
                    <author order="7">Lucic V</author>
                    <title>Trans-synaptic assemblies link synaptic vesicles and neuroreceptors.</title>
                    <journal_abbreviation>Sci Adv</journal_abbreviation>
                    <country>US</country>
                    <volume>7</volume>
                    <year>2021</year>
                    <external_references type="PUBMED">33674312</external_references>
                    <external_references type="DOI">doi:10.1126/sciadv.abe6204</external_references>
                    <external_references type="ISSN">2375-2548</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-11404</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-11405</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-11406</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-11407</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-11409</emdb_id>
                <relationship>
                    <other>associated EM volume</other>
                </relationship>
            </emdb_reference>
        </emdb_list>
    </crossreferences>
    <sample>
        <name>Native putative NMDA-type ionotropic glutamate receptor imaged at excitatory neocortical rodent synapses</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Native putative NMDA-type ionotropic glutamate receptor imaged at excitatory neocortical rodent synapses</name>
                <parent>0</parent>
                <details>Postsynaptic complexes were detected by Morse density tracing and classified by Affinity propagation (both implemented in PySeg) to obtain putative NMDA receptor particles. Aftewards, this average has been further classified and refined in 3D with Relion.</details>
                <natural_source database="NCBI">
                    <organism ncbi="10116">Rattus norvegicus</organism>
                    <organ>brain</organ>
                    <tissue>neocortex</tissue>
                    <organelle>excitatory synapse</organelle>
                    <cellular_location>postsynaptic</cellular_location>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.4</theoretical>
                </molecular_weight>
            </complex_supramolecule>
        </supramolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>tomography</method>
            <aggregation_state>cell</aggregation_state>
            <specimen_preparation_list>
                <tomography_preparation preparation_id="1">
                    <concentration units="mg/mL">0.7</concentration>
                    <buffer>
                        <ph>7.4</ph>
                        <component>
                            <name>HEPES-buffered saline</name>
                        </component>
                        <details>140 mM NaCl, 5 mM KCl, 5 mM NaHCO3, 1.2 mM Na2HPO4, 1 mM MgCl2, 10 mM glucose, and 10 mM Hepes</details>
                    </buffer>
                    <grid>
                        <model>Quantifoil</model>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>HOLEY</film_topology>
                        </support_film>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_temperature units="K">300</chamber_temperature>
                        <instrument>HOMEMADE PLUNGER</instrument>
                    </vitrification>
                    <details>Neocortical synaptosomal fraction</details>
                    <fiducial_markers_list>
                        <fiducial_marker>
                            <manufacturer>Unknown</manufacturer>
                            <diameter units="nanometer">10</diameter>
                        </fiducial_marker>
                    </fiducial_markers_list>
                    <sectioning>
                        <other_sectioning>NO SECTIONING</other_sectioning>
                    </sectioning>
                </tomography_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <tomography_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>
                    <nominal_defocus_min units="µm">0.5</nominal_defocus_min>
                    <nominal_defocus_max units="µm">1.0</nominal_defocus_max>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <alignment_procedure>
                        <basic />
                    </alignment_procedure>
                    <specialist_optics>
                        <energy_filter>
                            <slit_width units="eV">20</slit_width>
                        </energy_filter>
                    </specialist_optics>
                    <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 />
                            <average_electron_dose_per_image units="e/Å^2">1.66</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                </tomography_microscopy>
            </microscopy_list>
            <tomography_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <final_reconstruction>
                    <resolution res_type="BY AUTHOR" units="Å">29.184001</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>2.1</version>
                        </software>
                    </software_list>
                    <details>C2 symmetry</details>
                    <number_images_used>342</number_images_used>
                </final_reconstruction>
            </tomography_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="1049">
        <file>emd_11409.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>64</col>
            <row>64</row>
            <sec>64</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>64</x>
            <y>64</y>
            <z>64</z>
        </spacing>
        <cell>
            <a units="Å">437.76</a>
            <b units="Å">437.76</b>
            <c units="Å">437.76</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>-1.4786843</minimum>
            <maximum>1.4772185</maximum>
            <average>0.0012525186</average>
            <std>0.15706684</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">6.84</x>
            <y units="Å">6.84</y>
            <z units="Å">6.84</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-11409::::</label>
        <annotation_details>Averaged density map.</annotation_details>
    </map>
</emd>