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            <deposition>2021-01-04</deposition>
            <header_release>2021-03-03</header_release>
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            <update>2025-05-28</update>
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        <title>Structure of human SHLD2-SHLD3-REV7-TRIP13(E253Q) complex</title>
        <authors_list>
            <author>Xie W</author>
            <author>Patel DJ</author>
        </authors_list>
        <keywords>REV7, SHLD2, SHLD3, TRIP13, NUCLEAR PROTEIN</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author ORCID="0000-0002-4550-6211" order="1">Xie W</author>
                    <author order="2">Wang S</author>
                    <author ORCID="0000-0003-1696-1052" order="3">Wang J</author>
                    <author ORCID="0000-0002-8573-5406" order="4">de la Cruz MJ</author>
                    <author order="5">Xu G</author>
                    <author ORCID="0000-0002-5522-1447" order="6">Scaltriti M</author>
                    <author ORCID="0000-0002-9779-7778" order="7">Patel DJ</author>
                    <title>Molecular mechanisms of assembly and TRIP13-mediated remodeling of the human Shieldin complex.</title>
                    <journal_abbreviation>Proc.Natl.Acad.Sci.USA</journal_abbreviation>
                    <country>US</country>
                    <volume>118</volume>
                    <year>2021</year>
                    <external_references type="PUBMED">33597306</external_references>
                    <external_references type="DOI">doi:10.1073/pnas.2024512118</external_references>
                    <external_references type="ISSN">1091-6490</external_references>
                    <external_references type="CSD">0040</external_references>
                    <external_references type="ASTM">PNASA6</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>7l9p</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>SHLD2.3-REV7(4)-TRIP13(E253Q) complex with ATP-gamma-S</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>SHLD2.3-REV7(4)-TRIP13(E253Q) complex with ATP-gamma-S</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>
                <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>Pachytene checkpoint protein 2 homolog</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.048562547</theoretical>
                </molecular_weight>
                <number_of_copies>6</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="469008">Escherichia coli BL21(DE3)</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>SDEAVGDLKQALPCVAESPTVHVEVHQRGSSTAKKEDINLSVRKLLNRHNIVFGDYTWTEFDEPFLTRNVQSVSIIDTEL
KVKDSQPIDLSACTVALHIFQLNEDGPSSENLEEETENIIAANHWVLPAAEFHGLWDSLVYDVEVKSHLLDYVMTTLLFS
DKNVNSNLITWNRVVLLHGPPGTGKTSLCKALAQKLTIRLSSRYRYGQLIEINSHSLFSKWFSESGKLVTKMFQKIQDLI
DDKDALVFVLIDQVESLTAARNACRAGTEPSDAIRVVNAVLTQIDQIKRHSNVVILTTSNITEKIDVAFVDRADIKQYIG
PPSAAAIFKIYLSCLEELMKCQIIYPRQQLLTLRELEMIGFIENNVSKLSLLLNDISRKSEGLSGRVLRKLPFLAHALYV
QAPTVTIEGFLQALSLAVDKQFEERKKLAAYI</string>
                    <external_references type="UNIPROTKB">Q15645</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>Mitotic spindle assembly checkpoint protein MAD2B</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.024323348</theoretical>
                </molecular_weight>
                <details>closed form</details>
                <number_of_copies>4</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="469008">Escherichia coli BL21(DE3)</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>STTLTRQDLNFGQVVADVLCEFLEVAVHLILYVREVYPVGIFQKRKKYNVPVQMSCHPELNQYIQDTLHCVKPLLEKNDV
EKVVVVILDKEHRPVEKFVFEITQPPLLSISSDSLLSHVEQLLRAFILKISVCDAVLDHNPPGCTFTVLVHTREAATRNM
EKIQVIKDFPWILADEQDVHMHDPRLIPLKTMTSDILKMQLYVEERAHKGS</string>
                    <external_references type="UNIPROTKB">Q9UI95</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="3">
                <name>Shieldin complex subunit 2, Shieldin complex subunit 3 chimera</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.010678138999999998</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="469008">Escherichia coli BL21(DE3)</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MSQVHIFWGAPIAPLKGSGSGSGSGSGSGSGSTTEVILHYRPCESDPTQLPKIAEKAIQDFPTRPLSRFIPWFPYDGSKL
PLRPKRSPPASREEIMATL</string>
                    <external_references type="UNIPROTKB">Q86V20</external_references>
                    <external_references type="UNIPROTKB">Q6ZNX1</external_references>
                </sequence>
            </protein_or_peptide>
            <ligand macromolecule_id="4">
                <name>PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER</name>
                <molecular_weight>
                    <theoretical units="MDa">0.0005232469999999999</theoretical>
                </molecular_weight>
                <number_of_copies>5</number_of_copies>
                <formula>AGS</formula>
            </ligand>
        </macromolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>singleParticle</method>
            <aggregation_state>particle</aggregation_state>
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                <single_particle_preparation preparation_id="1">
                    <concentration units="mg/mL">0.3</concentration>
                    <buffer>
                        <ph>7.3</ph>
                        <details>20 mM HEPES, pH 7.3, 300 mM NaCl, 5 mM MgCl2, 0.1 mM ATP-gamma-S, 1 mM DTT</details>
                    </buffer>
                    <grid>
                        <model>UltrAuFoil R1.2/1.3</model>
                        <material>GOLD</material>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <time units="s">60</time>
                        </pretreatment>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">277</chamber_temperature>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                        <details>1.5-second blot, blot force of 0. </details>
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                    <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">-1.0</nominal_defocus_min>
                    <nominal_defocus_max units="µm">-2.5</nominal_defocus_max>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K3 BIOQUANTUM (6k x 4k)</film_or_detector_model>
                            <number_grids_imaged>1</number_grids_imaged>
                            <number_real_images>40</number_real_images>
                            <average_exposure_time units="s">0.075</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">53.0</average_electron_dose_per_image>
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                <startup_model type_of_model="PDB ENTRY">
                    <pdb_model>
                        <pdb_id>6F0X</pdb_id>
                    </pdb_model>
                    <details>TRIP13-p31-substrate model</details>
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                    <applied_symmetry>
                        <point_group>C2</point_group>
                    </applied_symmetry>
                    <resolution units="Å" res_type="BY AUTHOR">3.6</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <number_images_used>104023</number_images_used>
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                    <type>MAXIMUM LIKELIHOOD</type>
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                    <type>MAXIMUM LIKELIHOOD</type>
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