<?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-19121">
    <admin>
        <current_status>
            <date>2024-10-30</date>
            <code>REL</code>
            <processing_site>PDBe</processing_site>
        </current_status>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2023-12-12</deposition>
            <header_release>2024-01-10</header_release>
            <map_release>2024-01-10</map_release>
            <update>2024-10-30</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>Biotechnology and Biological Sciences Research Council (BBSRC)</funding_body>
                <code>V002937/1</code>
                <country>United Kingdom</country>
            </grant_reference>
        </grant_support>
        <title>CryoEM structure of the plant helper NLR NRC2 in its resting state</title>
        <authors_list>
            <author>Selvaraj M</author>
            <author>Kamoun S</author>
            <author>Contreras MP</author>
        </authors_list>
        <keywords>NLR protein, Helper NLRl, plant immunity, R-protein, IMMUNE SYSTEM</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Selvaraj M</author>
                    <author order="2">Toghani A</author>
                    <author order="3">Pai H</author>
                    <author order="4">Sugihara Y</author>
                    <author order="5">Kourelis J</author>
                    <author order="6">Yuen ELH</author>
                    <author order="7">Ibrahim T</author>
                    <author order="8">Zhao H</author>
                    <author order="9">Xie R</author>
                    <author order="10">Maqbool A</author>
                    <author order="11">De la Concepcion JC</author>
                    <author order="12">Banfield MJ</author>
                    <author order="13">Derevnina L</author>
                    <author order="14">Petre B</author>
                    <author order="15">Lawson DM</author>
                    <author order="16">Bozkurt TO</author>
                    <author order="17">Wu CH</author>
                    <author ORCID="0000-0002-0290-0315" order="18">Kamoun S</author>
                    <author ORCID="0000-0001-6002-0730" order="19">Contreras MP</author>
                    <title>Activation of plant immunity through conversion of a helper NLR homodimer into a resistosome.</title>
                    <journal_abbreviation>Plos Biol.</journal_abbreviation>
                    <country>US</country>
                    <volume>22</volume>
                    <first_page>e3002868</first_page>
                    <last_page>e3002868</last_page>
                    <year>2024</year>
                    <external_references type="PUBMED">39423240</external_references>
                    <external_references type="DOI">doi:10.1371/journal.pbio.3002868</external_references>
                    <external_references type="ISSN">1545-7885</external_references>
                </journal_citation>
            </primary_citation>
            <secondary_citation>
                <journal_citation published="true">
                    <author ORCID="0000-0001-7793-6323" order="20">Selvaraj M</author>
                    <author ORCID="0000-0002-0290-0315" order="21">Kamoun S</author>
                    <author ORCID="0000-0001-6002-0730" order="22">Contreras MP</author>
                    <title>Activation of plant immunity through conversion of a helper NLR homodimer into a resistosome</title>
                    <journal_abbreviation>Biorxiv</journal_abbreviation>
                    <country>US</country>
                    <year>2023</year>
                    <external_references type="DOI">doi:10.1101/2023.12.17.572070</external_references>
                    <external_references type="ISSN">2692-8205</external_references>
                </journal_citation>
            </secondary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>8rfh</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>NRC2 heler NLR dimer with ADP</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>NRC2 heler NLR dimer with ADP</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <details>This is helper NLR protein NRC2 in inactive state with ADP nucleotide bound state</details>
                <natural_source database="NCBI">
                    <organism ncbi="4100">Nicotiana benthamiana</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.1</theoretical>
                </molecular_weight>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>NRC2a</name>
                <natural_source database="NCBI">
                    <organism ncbi="4100">Nicotiana benthamiana</organism>
                    <tissue>leaves</tissue>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.10752239799999999</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="4100">Nicotiana benthamiana</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MANVAVEFLVQNLMQLLRDNAELIVGVKDSAESLLQDLNDFNAFLKQTAKSRTENDVHKELVKKIKTVVNSAEDAIDKFV
IEAKLHKDKGVGRFVDVKHYKRVYDVAGEIKTIRDKVKEIRLNNALDLQALQDEDQSAKGVQERKPPVVEEDDVVGFEEE
ADKVINRLLGGSSGLEVVPVVGMPGLGKTTLANKIYKHPDIGYQFFTRIWVYVSQSYRRRELFLNIISKFTRNTKQYHDM
CEEDLADEIEDFLGKGGKYLIVLDDVWSPDAWERIRIAFPNNNKSNRILLTTRDSKVAKQCKQCIGIPHDLKFLTEDESW
ILLEKKVFHKDKCPPELELSGKSIAKKCNGLPLAIVVIAGALIGKGKTSREWKQVDESVGEHLINKDQPENCNKLVQLSY
DRLSYDLKACFLYCGAFPGGFEIPAWKLIRLWIAEGFIQYKGHLSLECKAEDNLNDLINRNLVMVMQRTSDGQIKTCRLH
DMLHEFCRQEAMKEENLFQEIKLGAEQYFPGKRELATYRRLCIHSSVLEFISTKPSGEHVRSFLSFSLKKIEMPSVDIPT
IPKGFPLLRVFDVESINFSRFSKEFFQLYHLRYIAFSSDTIKIIPKHIGELWNIQTLIINTQQRSLDIQANIWNMERLRH
LHTNSSAKLPVPVTPRSSKVPLVNQSLQTLSTIAPESCTEEVFARTPNLKKLGIRGKIAVLLEPNKSLLKNVKKLESLEN
LKLINDSSQTGKGLRLPPSYIFPTKLRKLSLVDTWLEWNDMSILGQMEHLEVLKLKENGFMGECWESVGGFCSLLVLWIE
RTDLVSWKASADHFPRLKHLVLICCDKLKEIPIGLADIRSFQVMELQNSTKTAAISARGIRDKKDKQTQEGTNNNGFKLS
IFPPDLGSGSGRGSHHHHHHDYDIPTTASENLYFQGELDYKDHDGDYKDHDIDYKDDDDK</string>
                    <external_references type="UNIPROTKB">A0A0S3ANR1</external_references>
                </sequence>
            </protein_or_peptide>
            <ligand macromolecule_id="2">
                <name>ADENOSINE-5'-DIPHOSPHATE</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000427201</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <formula>ADP</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">
                    <concentration units="mg/mL">1.2</concentration>
                    <buffer>
                        <ph>7.5</ph>
                        <component>
                            <concentration units="mM">100.0</concentration>
                            <name>Tris HCl</name>
                        </component>
                        <component>
                            <concentration units="mM">150.0</concentration>
                            <name>NaCl</name>
                        </component>
                        <component>
                            <concentration units="mM">1.0</concentration>
                            <name>Magnesium chloride</name>
                        </component>
                        <component>
                            <concentration units="mM">1.0</concentration>
                            <name>EDTA</name>
                        </component>
                        <component>
                            <concentration units="Percentage">5.0</concentration>
                            <name>Glycerol</name>
                        </component>
                    </buffer>
                    <grid>
                        <model>C-flat</model>
                        <material>COPPER</material>
                        <support_film film_type_id="1">
                            <film_material>GRAPHENE</film_material>
                            <film_topology>CONTINUOUS</film_topology>
                        </support_film>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                        </pretreatment>
                        <details>The grids were negatively glow discharged</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">95</chamber_humidity>
                        <chamber_temperature units="K">277</chamber_temperature>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                        <details>The C-flat grids were coated with grphene oxide, in house and the sample was applied two times inside the vitrobot chamber. </details>
                    </vitrification>
                    <details>the particles are NRC2 purified from plant after over expression. This was suspended in buffer and cryogrids were made on graphene oxide backing</details>
                </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>
                    <c2_aperture_diameter units="µm">50.0</c2_aperture_diameter>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_defocus_min units="µm">1.5</nominal_defocus_min>
                    <nominal_defocus_max units="µm">2.7</nominal_defocus_max>
                    <nominal_magnification>105000.0</nominal_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <alignment_procedure>
                        <coma_free/>
                    </alignment_procedure>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K3 (6k x 4k)</film_or_detector_model>
                            <number_grids_imaged>1</number_grids_imaged>
                            <number_real_images>6000</number_real_images>
                            <average_exposure_time units="s">2.6</average_exposure_time>
                            <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>
                <particle_selection>
                    <details>Tbhe autopick program picked so many particles including non-protein stuffs</details>
                </particle_selection>
                <startup_model type_of_model="OTHER">
                    <details>Abinitio model from Relion</details>
                </startup_model>
                <final_reconstruction>
                    <number_classes_used>1</number_classes_used>
                    <applied_symmetry>
                        <point_group>C2</point_group>
                    </applied_symmetry>
                    <algorithm>BACK PROJECTION</algorithm>
                    <resolution units="Å" res_type="BY AUTHOR">3.9</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                    </software_list>
                    <number_images_used>229347</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing/>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing/>
                </final_angle_assignment>
                <final_three_d_classification>
                    <number_classes>3</number_classes>
                    <average_number_members_per_class>200000.0</average_number_members_per_class>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>4</version>
                        </software>
                    </software_list>
                </final_three_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="67109">
        <file>emd_19121.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>256</col>
            <row>256</row>
            <sec>256</sec>
        </dimensions>
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            <col>0</col>
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        <spacing>
            <x>256</x>
            <y>256</y>
            <z>256</z>
        </spacing>
        <cell>
            <a units="Å">211.968</a>
            <b units="Å">211.968</b>
            <c units="Å">211.968</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>-0.012051321</minimum>
            <maximum>0.022530898</maximum>
            <average>0.000101284684</average>
            <std>0.0007619272</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">0.828</x>
            <y units="Å">0.828</y>
            <z units="Å">0.828</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.0034</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-19121::::</label>
        <annotation_details>Please use contour for 0.0034 for atom inclusion. This covers all the main chain atoms in the model</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <initial_model>
                    <chain>
                        <residue_range>1-880</residue_range>
                        <source_name>AlphaFold</source_name>
                        <initial_model_type>in silico model</initial_model_type>
                    </chain>
                    <details>This is the full length sequence of NRC</details>
                </initial_model>
                <refinement_protocol>FLEXIBLE FIT</refinement_protocol>
                <target_criteria>CC</target_criteria>
                <refinement_space>REAL</refinement_space>
                <overall_bvalue>100.0</overall_bvalue>
            </modelling>
        </modelling_list>
        <segmentation_list>
            <segmentation>
                <file>emd_19121_msk_1.map</file>
            </segmentation>
        </segmentation_list>
        <half_map_list>
            <half_map format="CCP4" size_kbytes="67109">
                <file>emd_19121_half_map_2.map.gz</file>
                <symmetry>
                    <space_group>1</space_group>
                </symmetry>
                <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
                <dimensions>
                    <col>256</col>
                    <row>256</row>
                    <sec>256</sec>
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                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
                </origin>
                <spacing>
                    <x>256</x>
                    <y>256</y>
                    <z>256</z>
                </spacing>
                <cell>
                    <a units="Å">211.968</a>
                    <b units="Å">211.968</b>
                    <c units="Å">211.968</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>-0.0060798246</minimum>
                    <maximum>0.013740859</maximum>
                    <average>0.00004580859</average>
                    <std>0.00083456194</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">0.828</x>
                    <y units="Å">0.828</y>
                    <z units="Å">0.828</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
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                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-19121::::</label>
            </half_map>
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                <file>emd_19121_half_map_1.map.gz</file>
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                    <space_group>1</space_group>
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                    <sec>256</sec>
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                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
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                <spacing>
                    <x>256</x>
                    <y>256</y>
                    <z>256</z>
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                    <a units="Å">211.968</a>
                    <b units="Å">211.968</b>
                    <c units="Å">211.968</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>-0.006258597</minimum>
                    <maximum>0.013648757</maximum>
                    <average>0.000045772565</average>
                    <std>0.0008319659</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">0.828</x>
                    <y units="Å">0.828</y>
                    <z units="Å">0.828</z>
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                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-19121::::</label>
            </half_map>
        </half_map_list>
    </interpretation>
</emd>
