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    <admin>
        <current_status>
            <date>2024-04-10</date>
            <code>REL</code>
            <processing_site>PDBc</processing_site>
        </current_status>
        <sites>
            <deposition>PDBj</deposition>
            <last_processing>PDBc</last_processing>
        </sites>
        <key_dates>
            <deposition>2023-05-01</deposition>
            <header_release>2024-03-06</header_release>
            <map_release>2024-03-06</map_release>
            <update>2024-04-10</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>Ministry of Science and Technology (MoST, China)</funding_body>
                <code>Nos.2018YFA0902000</code>
                <country>China</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Ministry of Science and Technology (MoST, China)</funding_body>
                <code>ZX-2021ZD0203404</code>
                <country>China</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Natural Science Foundation of China (NSFC)</funding_body>
                <code>Nos. 32271330</code>
                <country>China</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Natural Science Foundation of China (NSFC)</funding_body>
                <code>Nos. 32000889</code>
                <country>China</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Natural Science Foundation of China (NSFC)</funding_body>
                <code>31970547</code>
                <country>China</country>
            </grant_reference>
        </grant_support>
        <title>SPARTA monomer bound with guide-target, state 2</title>
        <authors_list>
            <author>Li ZX</author>
            <author>Guo LJ</author>
            <author>Huang PP</author>
            <author>Xiao YB</author>
            <author>Chen MR</author>
        </authors_list>
        <keywords>SPARTA, Ago, Tir, DNA BINDING PROTEIN/DNA/RNA, DNA BINDING PROTEIN-DNA-RNA complex</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Guo L</author>
                    <author order="2">Huang P</author>
                    <author order="3">Li Z</author>
                    <author order="4">Shin YC</author>
                    <author order="5">Yan P</author>
                    <author order="6">Lu M</author>
                    <author order="7">Chen M</author>
                    <author order="8">Xiao Y</author>
                    <title>Auto-inhibition and activation of a short Argonaute-associated TIR-APAZ defense system.</title>
                    <journal_abbreviation>Nat.Chem.Biol.</journal_abbreviation>
                    <country>US</country>
                    <volume>20</volume>
                    <first_page>512</first_page>
                    <last_page>520</last_page>
                    <year>2024</year>
                    <external_references type="PUBMED">37932527</external_references>
                    <external_references type="DOI">doi:10.1038/s41589-023-01478-0</external_references>
                    <external_references type="ISSN">1552-4469</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>8j8h</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Short ago complexed with TIR-APAZ</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Short ago complexed with TIR-APAZ</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>3</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>4</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>2</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="1393122">Thermoflavifilum thermophilum</organism>
                </natural_source>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Piwi domain-containing protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="1393122">Thermoflavifilum thermophilum</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.061857792999999994</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="511693">Escherichia coli BL21</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MGSSHHHHHHSSGLVPRGSHMASMTGGQQMGRGSMKELIYIEEPSILFAHGQKCTDPRDGLALFGPLNQIYGIKSGVVGT
QKGLQIFKSYLDKIQKPIYNHNNITRPMFPGFEAVFGCKWESQNIVFKEITDEEIRRYLFNASTHKRTYDLVTLFNDKII
TANKNDEERVDVWFVIVPEEIYKYCRPNSVLPNELVQTKSLISKSKAKSFRYTPTLFEEFNKKLKEVEKEAKTYNYDAQF
HDQLKARLLEHTIPTQILRESTLAWRDFKNTFGAPIRDFSKIEGHLAWTISTAAYYKAGGKPWKLGDIRPGVCYLGLVYK
KIEKSKNPQNACCAAQMFLDNGDGTVFKGEVGPWYNPEKGEYHLKPKEAKALLTQALESYKEQNKSYPKEVFIHARTRFN
DEEWNAFNEVTPKNTNLVGVTITKSKPLKLYKTEGAFPIMRGNAYIVDEKKAFLWTLGFVPKLQSTLSMEVPNPIFIEIN
KGEAEIQQVLKDILALTKLNYNACIYADGEPVTLRFANKIGEILTASTEIKTPPLAFKYYI</string>
                    <external_references type="UNIPROTKB">A0A1I7NFD7</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>TIR domain-containing protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="1393122">Thermoflavifilum thermophilum</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.056809667999999994</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="511693">Escherichia coli BL21</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MGSSHHHHHHSSGLVPRGSHMASMTGGQQMGRGSMRNKIFISHATPEDDDFTRWLSLKLIGLGYEVWCDILFLDKGVDFW
STIEKEIRENTCKFLIVSSTAGNKREGVLKELAVATKVKKHLQDDMFIIPLAIDENLSYDDINIEIVRLNAIDFKKSWAK
GLQDLLDAFEKQNVPKKPPDHSKSNLLYQQIFLHDKQAIEKEETYDSNWFPIISFPNELRFHRYDWRLPKQFDVRTLAFP
AIRYKEYLCTFAWEYDFIHQLPKTETYNGQESIRISTSDILSGRYDTDFIRNYECQRLIVQLINKAFELRMKDKNVREYQ
MSKTFAYWIEKGKLEKDKFEKIKLVGKQKNKYWHFGISAAGKLYPSPVLMVSSHIIFTMDGINLIKSKSIQHSSRRKQGK
NWWNDKWREKLLAFIRFLSDDQNAIYLNVGSEEKILISNKPLKFFGKMSYVTPSEVTLEEESVLADINNFEEDTEDLDEL
EDIE</string>
                    <external_references type="UNIPROTKB">A0A1I7NFG5</external_references>
                </sequence>
            </protein_or_peptide>
            <rna macromolecule_id="3">
                <name>RNA (5'-R(P*UP*GP*AP*CP*GP*GP*CP*UP*CP*UP*AP*AP*UP*CP*UP*AP*UP*UP*AP*GP*U)-3')</name>
                <natural_source database="NCBI">
                    <organism ncbi="1393122">Thermoflavifilum thermophilum</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.006651948999999999</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <sequence>
                    <string>UGACGGCUCUAAUCUAUUAGU</string>
                </sequence>
            </rna>
            <dna macromolecule_id="4">
                <name>DNA (25-MER)</name>
                <natural_source database="NCBI">
                    <organism ncbi="1393122">Thermoflavifilum thermophilum</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.0076749999999999995</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <sequence>
                    <string>(DC)(DA)(DA)(DC)(DT)(DA)(DA)(DT)(DA)(DG)(DA)(DT)(DT)(DA)(DG)(DA)(DG)(DC)(DC)(DG)
(DT)(DC)(DA)(DA)(DT)</string>
                </sequence>
                <classification>DNA</classification>
            </dna>
            <ligand macromolecule_id="5">
                <name>MAGNESIUM ION</name>
                <molecular_weight>
                    <theoretical units="MDa">2.4305e-05</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <formula>MG</formula>
            </ligand>
        </macromolecule_list>
    </sample>
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            <method>singleParticle</method>
            <aggregation_state>particle</aggregation_state>
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                    <buffer>
                        <ph>7.5</ph>
                    </buffer>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                    </vitrification>
                </single_particle_preparation>
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            <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>
                    <nominal_defocus_min units="µm">1.0</nominal_defocus_min>
                    <nominal_defocus_max units="µm">2.4</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 K2 SUMMIT (4k x 4k)</film_or_detector_model>
                            <detector_mode>COUNTING</detector_mode>
                            <average_electron_dose_per_image units="e/Å^2">40.0</average_electron_dose_per_image>
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            <singleparticle_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <startup_model type_of_model="NONE"/>
                <final_reconstruction>
                    <resolution units="Å" res_type="BY AUTHOR">3.4</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
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                    <type>RANDOM ASSIGNMENT</type>
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                    <type>RANDOM ASSIGNMENT</type>
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                <refinement_protocol>AB INITIO MODEL</refinement_protocol>
                <refinement_space>REAL</refinement_space>
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