<?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_2/emdb.xsd" version="3.0.9.2" emdb_id="EMD-8478">
    <admin>
        <current_status>
            <date>2024-03-13</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2016-11-23</deposition>
            <header_release>2017-02-22</header_release>
            <map_release>2017-08-09</map_release>
            <update>2024-03-13</update>
        </key_dates>
        <title>CRISPR RNA-guided surveillance complex</title>
        <authors_list>
            <author>Xiao Y</author>
            <author>Luo M</author>
        </authors_list>
        <keywords>CRISPR-Cas, Cascacde, surveillance, IMMUNE SYSTEM</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Xiao Y</author>
                    <author order="2">Luo M</author>
                    <author order="3">Hayes RP</author>
                    <author order="4">Kim J</author>
                    <author order="5">Ng S</author>
                    <author order="6">Ding F</author>
                    <author order="7">Liao M</author>
                    <author order="8">Ke A</author>
                    <title>Structure Basis for Directional R-loop Formation and Substrate Handover Mechanisms in Type I CRISPR-Cas System.</title>
                    <journal_abbreviation>Cell</journal_abbreviation>
                    <volume>170</volume>
                    <first_page>48</first_page>
                    <last_page>60.e11</last_page>
                    <year>2017</year>
                    <external_references type="PUBMED">28666122</external_references>
                    <external_references type="DOI">doi:10.1016/j.cell.2017.06.012</external_references>
                    <external_references type="ISSN">1097-4172</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-8477</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
        </emdb_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>5u0a</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>CRISPR RNA-guided surveillance complex</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>CRISPR RNA-guided 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>
                        <macromolecule_id>7</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>8</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="269800">Thermobifida fusca (strain YX)</organism>
                </natural_source>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>CRISPR-associated protein, Cse3 family</name>
                <natural_source database="NCBI">
                    <organism ncbi="269800">Thermobifida fusca (strain YX)</organism>
                    <strain>YX</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.026327938</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="469008">Escherichia coli BL21(DE3)</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MTWLTKIVPDLRYRQTRADFRTAGNLHRKLIRLSSDLGEERIANPRQQSGLLFRIEETRNELYLLVQSHSPLRVDRLGPG
YHGVQMRNLDPFLARLDKGSRVRYRIVASPTKRLGRSENNTQRLGLKEPPKKPREYTWALRGAAAEEWWHSRAAANGLEL
LSTYAQTLDDVRDPGTADRSRKIRHPAVRFDGEAVISDVDAVRHAVLNGIGRGKSYGCGLLSLALIEEGEHG</string>
                    <external_references type="UNIPROTKB">Q47PJ5</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>CRISPR-associated protein, Cse1 family</name>
                <natural_source database="NCBI">
                    <organism ncbi="269800">Thermobifida fusca (strain YX)</organism>
                    <strain>YX</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.061433297</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="469008">Escherichia coli BL21(DE3)</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MLSVALCFLVGGAIPSPPSFDVTIAPWLIARSRDVLAAPEMLGLRDVLIRSHELSDVEIPLPPGAAVLWRILALITARIT
GLDQPPNKNPKRKWQARRSQILSKGRLDPEAVDAYFADYSERFDLFHPERPWLQDPRLREECPKTSGVNKLAWGRTAGEN
QVWLGGHHHDLDPHPLDSAEAVWHLLATLGYGPSGMCTARVVRGRSERNVTAGPLRGTVSYHPLGRTLFESLILNIPYPG
TGAADLAFWEQPELNDPLGLPEESAGLAGILRLDHFRHAVLLHPSPDGSHVVDAWVTWAWRERNISPELDPYLIYQTSKE
GRVYPRPAEAERAIWRDLDALLHYGEDGNYRPTILDNCTPLAQVPQEVLDSLRLRAFGFDQDGQARDKQWFTATTPAVLR
WLADRETDDNENARIVRRITLARKAAEALGRRLEKACKEAWKESNSPSSTSSGTNAKTETGVGPWVQHGMSRYWAKAEPV
FWNIVYDRPAQGYTPGMAGPGNAFNLVALAAYDEVTGPYCERPRVAKVVERHRSTLFSNWTPKQDKEAA</string>
                    <external_references type="UNIPROTKB">Q47PJ1</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="3">
                <name>CRISPR-associated protein, Cse4 family</name>
                <natural_source database="NCBI">
                    <organism ncbi="269800">Thermobifida fusca (strain YX)</organism>
                    <strain>YX</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.041043042999999994</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>MTFVDIHAIQTLPYSNINRDDLGSPKTVVYGGKERTRVSSQSWKRAVRHEVEARLGDKAVRTRRIISEIAKRLRERGWDA
DLADAGARQVVLSVGKKSGIKLEKEKDSEAPATSVLFYLPVPAIDELAAIADEHRDAVAKEAAKKTPKGILPADRITEVL
KSRNVSVNLFGRMLAELPSTEVDGAVQFAHAFTVHGTTVEVDFFTAVDDIPKENDHGSGHMNAGQFSAGTFYRYANVNLD
RLVENTGDAQTARTAVAEFLRAFLSTVPSGKQNATAAMTLPDLVHIAVRFDRPISFAPAFETALYGSDGYTLRACQELNN
YAERLREVWPDDAIRGYATVENKTDLAALGERYDSYPALIDAMVAAAFEGERE</string>
                    <external_references type="UNIPROTKB">Q47PJ3</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="4">
                <name>Cse2</name>
                <natural_source database="NCBI">
                    <organism ncbi="269800">Thermobifida fusca (strain YX)</organism>
                    <strain>YX</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.027446613</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>MNSDYILQHADALVKRVSKLIVNEPAARAALRRGVGLAPEDPRMLAAHRVVAPYVPVPTDYDVDRRRAASLWDVHAVERA
FYAVAAIMAAQPRSARDQEAEATEEQTGEPQDSEALTEPTPAEESSATKDGKPDRRPNLGVSLAQAVFDKGLNADSTEQR
LHLIARQNLDGVHRHLPRLVLYLRSDQVHIDWGILIRDLARWGHTPRHVAREWVQDYHRTLETLTRQAEQKNKNNTTDEE
AEAA</string>
                    <external_references type="UNIPROTKB">Q47PJ2</external_references>
                </sequence>
            </protein_or_peptide>
            <rna macromolecule_id="5">
                <name>crRNA</name>
                <natural_source database="NCBI">
                    <organism ncbi="269800">Thermobifida fusca YX</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.019790793</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <sequence>
                    <string>AUGGACCGCCAGUGAUAAGUGGAAUGCCAUGUGGGCUGUCGUGAGCCCCACGCACGUGGGG</string>
                </sequence>
            </rna>
            <dna macromolecule_id="6">
                <name>Target Strand</name>
                <natural_source database="NCBI">
                    <organism ncbi="269800">Thermobifida fusca YX</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.015251741</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <sequence>
                    <string>(DG)(DC)(DC)(DT)(DG)(DG)(DC)(DG)(DA)(DC)(DA)(DG)(DC)(DC)(DC)(DA)(DC)(DA)(DT)(DG)
(DG)(DC)(DA)(DT)(DT)(DC)(DC)(DA)(DC)(DT)(DT)(DA)(DT)(DC)(DA)(DC)(DT)(DG)(DG)(DC)
(DT)(DT)(DC)(DG)(DT)(DC)(DC)(DG)(DC)(DG)</string>
                </sequence>
                <classification>DNA</classification>
            </dna>
            <protein_or_peptide macromolecule_id="7">
                <name>CRISPR-associated protein, Cas5e family</name>
                <natural_source database="NCBI">
                    <organism ncbi="269800">Thermobifida fusca (strain YX)</organism>
                    <strain>YX</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.028279259999999997</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="469008">Escherichia coli BL21(DE3)</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MSGFLLRLAGPMQSWGEHSMFGERDTLPYPSRSGLIGMFAAAQGVRRGDPLDRYKELKFTVRVDRPGVRLVDFHTIGGGL
PKERTVPTAAGERRDPKKATIVTSRSYLADAVFTVAVTGPEADTIADALAAPYWQPYLGRRAFVPDPLLVLRRRVADPVR
ELVEAVPLPHRRVEEDAATVLVDLIYEEGEYPDTRTLTVLNDVPLSFDSKSRRYSTRQIRVVPTEVPATLVAGPGRDYQN
KLFTYVKQCAEEAA</string>
                    <external_references type="UNIPROTKB">Q47PJ4</external_references>
                </sequence>
            </protein_or_peptide>
            <dna macromolecule_id="8">
                <name>Nontarget Strand</name>
                <natural_source database="NCBI">
                    <organism ncbi="269800">Thermobifida fusca YX</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.012076723</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <sequence>
                    <string>(DC)(DG)(DC)(DG)(DG)(DA)(DC)(DG)(DA)(DA)(DG)(DC)(DC)(DA)(DG)(DT)(DG)(DA)(DC)(DC)
(DA)(DT)(DG)(DT)(DG)(DG)(DG)(DC)(DT)(DG)(DT)(DC)(DG)(DC)(DC)(DA)(DG)(DG)(DC)</string>
                </sequence>
                <classification>DNA</classification>
            </dna>
        </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">0.8</concentration>
                    <buffer>
                        <ph>7.5</ph>
                        <details>10 mM HEPES pH 7.5, 150 mM NaCl, 5 mM DTT</details>
                    </buffer>
                    <grid>
                        <model>400 mesh Quantifoil holey carbon grid</model>
                        <material>COPPER</material>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                        </pretreatment>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">85</chamber_humidity>
                        <instrument>GATAN CRYOPLUNGE 3</instrument>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>FEI POLARA 300</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_cs units="mm">2.0</nominal_cs>
                    <calibrated_defocus_min units="µm">1.0</calibrated_defocus_min>
                    <calibrated_defocus_max units="µm">21.0</calibrated_defocus_max>
                    <nominal_magnification>31000.0</nominal_magnification>
                    <specimen_holder_model>GATAN LIQUID NITROGEN</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <temperature>
                        <temperature_min units="K">80.0</temperature_min>
                        <temperature_max units="K">105.0</temperature_max>
                    </temperature>
                    <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>
                            <number_real_images>1072</number_real_images>
                            <average_electron_dose_per_image units="e/Å^2">8.0</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>303301</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">3.3</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>1.4</version>
                        </software>
                    </software_list>
                    <number_images_used>131292</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing/>
                    <software_list>
                        <software>
                            <name>SPIDER</name>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing/>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>1.4</version>
                        </software>
                    </software_list>
                </final_angle_assignment>
                <final_three_d_classification>
                    <number_classes>6</number_classes>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>1.4</version>
                        </software>
                    </software_list>
                </final_three_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="67109">
        <file>emd_8478.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>
        <origin>
            <col>-256</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>256</x>
            <y>256</y>
            <z>256</z>
        </spacing>
        <cell>
            <a units="Å">314.88</a>
            <b units="Å">314.88</b>
            <c units="Å">314.88</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>-0.29755154</minimum>
            <maximum>0.47882083</maximum>
            <average>0.000029935774</average>
            <std>0.017093083</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">1.23</x>
            <y units="Å">1.23</y>
            <z units="Å">1.23</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.07</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::D_1000225050::::</label>
        <annotation_details>3.3 angstrom EM map of Type 1-E Cascade in the full R-loop state from Thermobifida fusca</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <refinement_protocol>OTHER</refinement_protocol>
            </modelling>
        </modelling_list>
    </interpretation>
</emd>
