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    <admin>
        <current_status>
            <date>2024-03-06</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2020-03-04</deposition>
            <header_release>2020-05-13</header_release>
            <map_release>2020-05-13</map_release>
            <update>2024-03-06</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>National Institutes of Health/Office of the Director</funding_body>
                <code>DP2EB020402</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)</funding_body>
                <code>R35GM134867</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/Office of the Director</funding_body>
                <code>S10OD021634</code>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>Cryo-EM structure of anti-CRISPR AcrIF9, bound to the type I-F crRNA-guided CRISPR surveillance complex</title>
        <authors_list>
            <author>Hirschi M</author>
            <author>Santiago-Frangos A</author>
        </authors_list>
        <keywords>type I-F CRISPR RNA-guided surveillance complex, Csy complex, IMMUNE SYSTEM-RNA complex</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Hirschi M</author>
                    <author order="2">Lu WT</author>
                    <author order="3">Santiago-Frangos A</author>
                    <author ORCID="0000-0001-8831-2081" order="4">Wilkinson R</author>
                    <author order="5">Golden SM</author>
                    <author ORCID="0000-0002-0744-9199" order="6">Davidson AR</author>
                    <author ORCID="0000-0003-4921-1135" order="7">Lander GC</author>
                    <author ORCID="0000-0001-9297-5304" order="8">Wiedenheft B</author>
                    <title>AcrIF9 tethers non-sequence specific dsDNA to the CRISPR RNA-guided surveillance complex.</title>
                    <journal_abbreviation>Nat Commun</journal_abbreviation>
                    <country>UK</country>
                    <volume>11</volume>
                    <first_page>2730</first_page>
                    <last_page>2730</last_page>
                    <year>2020</year>
                    <external_references type="PUBMED">32483187</external_references>
                    <external_references type="DOI">doi:10.1038/s41467-020-16512-1</external_references>
                    <external_references type="ISSN">2041-1723</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-21517</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
        </emdb_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>6w1x</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Anti-CRISPR AcrIF9 bound to the type I-F crRNA-guided CRISPR surveillance complex</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Anti-CRISPR AcrIF9 bound to the type I-F crRNA-guided CRISPR surveillance complex</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>
                        <macromolecule_id>4</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>5</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>6</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
            </complex_supramolecule>
            <complex_supramolecule supramolecule_id="2">
                <name>Type I-F crRNA-guided CRISPR surveillance complex</name>
                <parent>1</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>
                        <macromolecule_id>4</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>5</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="287">Pseudomonas aeruginosa</organism>
                </natural_source>
            </complex_supramolecule>
            <complex_supramolecule supramolecule_id="3">
                <name>Anti-CRISPR AcrIF9</name>
                <parent>1</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>6</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="102862">Proteus penneri</organism>
                </natural_source>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>CRISPR-associated protein Csy1</name>
                <natural_source database="NCBI">
                    <organism ncbi="287">Pseudomonas aeruginosa</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.049194167999999996</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MTSPLPTPTWQELRQFIESFIQERLQGKLDKLQPDEDDKRQTLLATHRREAWLADAARRVGQLQLVTHTLKPIHPDARGS
NLHSLPQAPGQPGLAGSHELGDRLVSDVVGNAAALDVFKFLSLQYQGKNLLNWLTEDSAEALQALSDNAEQAREWRQAFI
GITTVKGAPASHSLAKQLYFPLPGSGYHLLAPLFPTSLVHHVHALLREARFGDAAKAAREARSRQESWPHGFSEYPNLAI
QKFGGTKPQNISQLNNERRGENWLLPSLPPNWQRQNVNAPMRHSSVFEHDFGRTPEVSRLTRTLQRFLAKTVHNNLAIRQ
RRAQLVAQICDEALQYAARLRELEPGWSATPGCQLHDAEQLWLDPLRAQTDETFLQRRLRGDWPAEVGNRFANWLNRAVS
SDSQILGSPEAAQWSQELSKELTMFKEILEDERD</string>
                    <external_references type="UNIPROTKB">Q02ML9</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>Type I-F CRISPR-associated protein Csy2</name>
                <natural_source database="NCBI">
                    <organism ncbi="287">Pseudomonas aeruginosa</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.036244074</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MSVTDPEALLLLPRLSIQNANAISSPLTWGFPSPGAFTGFVHALQRRVGISLDIELDGVGIVCHRFEAQISQPAGKRTKV
FNLTRNPLNRDGSTAAIVEEGRAHLEVSLLLGVHGDGLDDHPAQEIARQVQEQAGAMRLAGGSILPWCNERFPAPNAELL
MLGGSDEQRRKNQRRLTRRLLPGFALVSREALLQQHLETLRTTLPEATTLDALLDLCRINFEPPATSSEEEASPPDAAWQ
VRDKPGWLVPIPAGYNALSPLYLPGEVRNARDRETPLRFVENLFGLGEWLSPHRVAALSDLLWYHHAEPDKGLYRWSTPR
FVEHAIA</string>
                    <external_references type="UNIPROTKB">B3G161</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="3">
                <name>CRISPR-associated protein Csy3</name>
                <natural_source database="NCBI">
                    <organism ncbi="287">Pseudomonas aeruginosa</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.039778593999999994</theoretical>
                </molecular_weight>
                <number_of_copies>6</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MKSSHHHHHHENLYFQSNASKPILSTASVLAFERKLDPSDALMSAGAWAQRDASQEWPAVTVREKSVRGTISNRLKTKDR
DPAKLDASIQSPNLQTVDVANLPSDADTLKVRFTLRVLGGAGTPSACNDAAYRDKLLQTVATYVNDQGFAELARRYAHNL
ANARFLWRNRVGAEAVEVRINHIRQGEVARAWRFDALAIGLRDFKADAELDALAELIASGLSGSGHVLLEVVAFARIGDG
QEVFPSQELILDKGDKKGQKSKTLYSVRDAAAIHSQKIGNALRTIDTWYPDEDGLGPIAVEPYGSVTSQGKAYRQPKQKL
DFYTLLDNWVLRDEAPAVEQQHYVIANLIRGGVFGEAEEK</string>
                    <external_references type="UNIPROTKB">A0A444M080</external_references>
                </sequence>
            </protein_or_peptide>
            <rna macromolecule_id="4">
                <name>RNA (60-MER)</name>
                <natural_source database="NCBI">
                    <organism ncbi="287">Pseudomonas aeruginosa</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.019265403999999996</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <sequence>
                    <string>CUAAGAAAUUCACGGCGGGCUUGAUGUCCGCGUCUACCUGGUUCACUGCCGUGUAGGCAG</string>
                    <external_references type="GENBANK">HQ326201.1</external_references>
                </sequence>
            </rna>
            <protein_or_peptide macromolecule_id="5">
                <name>CRISPR-associated endonuclease Cas6/Csy4</name>
                <natural_source database="NCBI">
                    <organism ncbi="287">Pseudomonas aeruginosa</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.021427504</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MDHYLDIRLRPDPEFPPAQLMSVLFGKLHQALVAQGGDRIGVSFPDLDESRSRLGERLRIHASADDLRALLARPWLEGLR
DHLQFGEPAVVPHPTPYRQVSRVQAKSNPERLRRRLMRRHDLSEEEARKRIPDTVARALDLPFVTLRSQSTGQHFRLFIR
HGPLQVTAEEGGFTCYGLSKGGFVPWF</string>
                    <external_references type="UNIPROTKB">Q02MM2</external_references>
                </sequence>
                <ec_number>3.1.-.-</ec_number>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="6">
                <name>anti-CRISPR AcrIF9</name>
                <natural_source database="NCBI">
                    <organism ncbi="102862">Proteus penneri</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.007863849</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MKSTYIIKEVQNINSDREGVKVETTSLTSAKRIASKNQFFHGTVLRIESESGNWLAYKEDGKRWIECE</string>
                    <external_references type="UNIPROTKB">C0AVY5</external_references>
                </sequence>
            </protein_or_peptide>
        </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">2.5</concentration>
                    <buffer>
                        <ph>7.5</ph>
                        <component>
                            <concentration units="mM">20.0</concentration>
                            <formula>HEPES</formula>
                        </component>
                        <component>
                            <concentration units="mM">100.0</concentration>
                            <formula>NaCl</formula>
                        </component>
                        <component>
                            <concentration units="%">2.5</concentration>
                            <formula>glycerol</formula>
                        </component>
                        <component>
                            <concentration units="mM">1.0</concentration>
                            <formula>TCEP</formula>
                        </component>
                    </buffer>
                    <grid>
                        <model>Quantifoil, UltrAuFoil, R1.2/1.3</model>
                        <material>GOLD</material>
                        <mesh>300</mesh>
                        <pretreatment>
                            <type>PLASMA CLEANING</type>
                            <time units="s">7</time>
                            <atmosphere>OTHER</atmosphere>
                        </pretreatment>
                        <details>unspecified</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">95</chamber_humidity>
                        <chamber_temperature units="K">277</chamber_temperature>
                        <instrument>HOMEMADE PLUNGER</instrument>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>FEI TALOS ARCTICA</microscope>
                    <illumination_mode>FLOOD BEAM</illumination_mode>
                    <imaging_mode>BRIGHT FIELD</imaging_mode>
                    <electron_source>FIELD EMISSION GUN</electron_source>
                    <acceleration_voltage units="kV">200</acceleration_voltage>
                    <c2_aperture_diameter units="µm">100.0</c2_aperture_diameter>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_defocus_min units="µm">0.8</nominal_defocus_min>
                    <nominal_defocus_max units="µm">1.2</nominal_defocus_max>
                    <nominal_magnification>36000.0</nominal_magnification>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <alignment_procedure>
                        <zemlin_tableau/>
                    </alignment_procedure>
                    <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/>
                            <number_real_images>1653</number_real_images>
                            <average_exposure_time units="s">13.2</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">66.0</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>
                    <number_selected>1571636</number_selected>
                </particle_selection>
                <startup_model type_of_model="NONE"/>
                <final_reconstruction>
                    <applied_symmetry>
                        <point_group>C1</point_group>
                    </applied_symmetry>
                    <resolution units="Å" res_type="BY AUTHOR">3.9</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <number_images_used>285707</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                </final_angle_assignment>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
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        <symmetry>
            <space_group>1</space_group>
        </symmetry>
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        <dimensions>
            <col>200</col>
            <row>200</row>
            <sec>200</sec>
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        <spacing>
            <x>200</x>
            <y>200</y>
            <z>200</z>
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        <cell>
            <a units="Å">230.0</a>
            <b units="Å">230.0</b>
            <c units="Å">230.0</c>
            <alpha units="deg">90.0</alpha>
            <beta units="deg">90.0</beta>
            <gamma units="deg">90.0</gamma>
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        <axis_order>
            <fast>X</fast>
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            <slow>Z</slow>
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            <minimum>-0.061401043</minimum>
            <maximum>0.11653317</maximum>
            <average>-0.000022094737</average>
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        <pixel_spacing>
            <x units="Å">1.15</x>
            <y units="Å">1.15</y>
            <z units="Å">1.15</z>
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        <contour_list>
            <contour primary="true">
                <level>0.015</level>
                <source>AUTHOR</source>
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        <label>::::EMDATABANK.org::::EMD-21516::::</label>
        <annotation_details>anti-CRISPR AcrIF9 bound to the type I-F crRNA-guided CRISPR surveillance complex</annotation_details>
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